The invention relates to a flow device for an additive manufacturing device (1), comprising a gas-supply apparatus for generating a gas flow (33) at least in a process chamber (3) of the manufacturing device, a feed line (30) for supplying the gas flow to the process chamber, and a flow-modification element (31) for introducing the gas flow from the feed line (30) into the process chamber (3). The flow-modification element (31) comprises at least one first gas-conducting element (144a, 144b) extending from a gas-inlet side (141) to a gas-outlet side (142) and a plurality of ducts (143a, 143b, 143c), each of the ducts allowing for gas to be transported from the gas-inlet side (141) to the gas-outlet side (142). A number of first ducts and a number of second ducts are at least partly defined by the first gas-conducting element (144a, 144b), which ducts are mutually spaced in such a way that the number of second ducts, in a direction perpendicular to the build area (10), is arranged closer to the build area than the number of first ducts. A total opening cross-sectional area of the number of first ducts on the gas-outlet side differs from a total opening cross-sectional area of the number of second ducts on the gas-outlet side, and the total opening cross-sectional areas of the number of first ducts and the number of second ducts on the gas-inlet side have substantially the same size. Alternatively or additionally, at least one partial gas flow (61) which is introduced from the number of first ducts into the process chamber during operation of the flow device is directed towards one plane of the build area (10).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B22F 10/322 - Process control of the atmosphere, e.g. composition or pressure in a building chamber of the gas flow, e.g. rate or direction
The present invention relates to a steel powder for additive manufacture of three-dimensional objects and in particular for the manufacture hot and cold work tools, wherein the steel combines the properties of carbon hardening and maraging steel. Such steels have been found to be readily processable and provide crack free objects with low distortion. The present invention further relates to methods for the preparation of corresponding steel powders, methods for the manufacture of three-dimensional objects from corresponding steel powders and three-dimensional objects prepared by such methods, and the use of a corresponding steel powder for the preparation of die casting or injection molding tools and for suppressing the formation of cracks in the preparation of three-dimensional objects from steel.
B22F 1/05 - Metallic powder characterised by the size or surface area of the particles
B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
B33Y 70/00 - Materials specially adapted for additive manufacturing
The invention relates to a method for generating a control data set for an energy input device of an additive manufacturing device which is designed to produce an object by applying a construction material layer by layer and by solidifying the construction material in a construction area (8) by means of the energy input device. The method has the following steps: a first step (S1) of accessing computer-based model data of an object cross-section of the object to be produced; a second step (S2) of generating a data model of a construction material layer region to be solidified in order to produce the object cross-section, wherein the region to be solidified is separated into a plurality of sub-regions (8a, 8b), at least one first sub-region (8a) and a second sub-region (8b) adjoin each other at a border (8ab), and points in the first sub-region (8a) are scanned in a timed manner with respect to points in the second sub-region (8b); and a third step (S3), in which the control data set for the energy input device is generated while taking into consideration the data model generated in the second step.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The present application is concerned with a powder mixture for additive manufacturing processes, wherein the powder mixture comprises a duplex steel powder component and an austenitic steel powder component, wherein the powder mixture comprises Cr in an amount of at least 21.3 % by weight. The addition of the austenitic steel powder component increases the ductility of the duplex steel and reduces internal stresses which result in cracking in objects build with duplex steel. The present application is further concerned with methods for the preparation of such powder mixtures, methods and devices for the preparation of three-dimensional objects from the powder mixtures and three-dimensional objects, which have been prepared accordingly, as well as the use of an austenitic steel powder to suppress the formation of cracks in duplex steel three-dimensional objects.
The invention relates to a particle separator (1) for an additive manufacturing device (5) for separating a coarse-particle fraction (6) from a process gas (50) of an additive manufacturing device (5) that flows through the particle separator (1) during operation. The particle separator (1) has at least one main flow-guiding body (10), an inlet element (12) for process gas (50) entering the main flow-guiding body (10) and an outlet element (13) for process gas (50) leaving the main flow-guiding body (10). The particle separator (1) also has an adhesion-reducing element (2). The adhesion-reducing element (2) has at least one temperature-controlling element (20), in order to control the temperature at least of a subregion (15, 15') of a housing wall (14) of the particle separator (1), which subregion (15, 15') is subjected to the flow of process gas (50) during operation. As an alternative, or in addition, the adhesion-reducing element (2) has at least one element (30) for guiding the flow, in order to introduce the process gas (50) of the additive manufacturing device (5) into the, preferably substantially cylindrical, main flow-guiding body (10) in the form of at least two partial streams (31, 33). The invention also relates to a particle-separating system (8) with a particle separator (1), to an additive manufacturing system (9) with at least one additive manufacturing device (5), to a process-gas cleaning process for cleaning process gas (50) and to a method for controlling an additive manufacturing operation.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a filter device for an additive manufacturing device for purifying a process gas of the additive manufacturing device, the filter device having at least one permanent filter for purifying a process gas during operation, the permanent filter having at least one coating. The invention also relates to a method for producing such a filter device. The invention further relates to an additive manufacturing device and to a method for additive manufacturing.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
B01D 46/54 - Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
B01D 46/58 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
B01D 39/10 - Filter screens essentially made of metal
B01D 39/20 - Other self-supporting filtering material of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
7.
METHOD AND DEVICE FOR GENERATING CONTROL DATA FOR AN ADDITIVE MANUFACTURING DEVICE
The invention relates to a method for generating control data (PS, BS) for a device (1) for additively manufacturing a component (2), said method comprising the steps: - obtaining or generating layer information (SI) comprising layer structures of the component, wherein layer structures should be solidified with a number of predefined filling patterns (F) in the form of hatching composed of parallel solidification paths (B), - dividing solidification paths (B) of at least one of the filling patterns (F) into at least a first group (G1), a second group (G2), and a third group (G3), wherein each group (G1, G2, G3) substantially comprises solidification paths (B) which are not directly adjacent to one another, - determining an irradiation sequence of the solidification paths (B) of the groups (G1, G2, G3), wherein firstly the solidification paths (B) of the first group (G1) are solidified, then the solidification paths (B) of the second group (G2), and then the solidification paths (B) of the third group (G3), - generating control data (PS, BS) in such a way that the additive manufacturing device (1) can use said control data (PS, BS) to generate a filling pattern (F) in accordance with the corresponding irradiation sequence. The invention also relates to: corresponding control data; a control-data-generating device; a control means for a device for additively manufacturing a component; such a device for additively manufacturing components; and a method for additively manufacturing a component.
FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG, KÖRPERSCHAFT DES ÖFFENTLICHEN RECHTS (Germany)
Inventor
Bück, Andreas
Dechet, Maximilian
Fischer, Sybille
Freihart, Karl
Pfister, Andreas
Schmidt, Jochen
Sesseg, Jens
Unger, Laura
Abstract
The present invention relates to a composition comprising at least one polymer, the polymer solidifying from a molten material in a substantially amorphous or completely amorphous form. The present invention further relates to a method for producing the composition according to the invention, to a structural component comprising a composition according to the invention and to the use of the composition according to the invention.
The invention relates to a sensor arrangement (9) for a device (1) for additive manufacturing of a component (2) in a manufacturing process in which build material (13), preferably comprising a metal powder, is solidified in a building area (8) in a process space (3) by means of irradiation of the build material (13) with at least one energy beam (AL), said sensor arrangement (9) comprising: - a sensor module (90) designed to detect oxygen molecules in a gas sample (P) that penetrates into the sensor module (90) and to generate an electrical sensor signal (S) based on the amount of oxygen molecules, - a selective filter element (F) designed to filter the gas sample (P) such that at least hydrogen molecules and/or hydrogen ions and/or water molecules and/or hydroxide ions are filtered out of the gas sample (P). The invention further relates to a manufacturing device and to a test method comprising such a sensor arrangement.
The invention relates to a sensor arrangement (9) for an apparatus (1) for additive manufacturing of a component (2) in a manufacturing process in which, on a build zone (8) in a process area (3), construction material (13), preferably comprising a metal powder, is solidified by means of irradiation of the construction material (13) using at least one energy beam (AL), the sensor arrangement (9) comprising: – a sensor module (90), designed to detect oxygen molecules in a gas sample (P) penetrating into the sensor module (90) and to generate an electrical sensor signal (S) on the basis of the quantity of oxygen molecules, – a control module (95), designed to determine whether the sensor module (90) is measuring outside a predetermined action range on the basis of a comparison of the sensor signal (S) or of a variable derived from the sensor signal (S) with a predefined limit value (G), and if this is the case, to generate a control signal (SL) designed to initiate a predetermined countermeasure that is intended to change the conditions in the apparatus (1) so that the sensor module (90) measures in the action range (AB) again. The invention furthermore relates to a manufacturing apparatus and to a measuring method with such a sensor arrangement.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention relates to a calibration method of a device for layered additive manufacturing of items, which device comprises: a control device for controlling the layered additive manufacturing process; a layer deposition device which is designed to provide a layer of a construction material; and an energy supply device which is designed to solidify points of the layer by supplying electromagnetic radiation; wherein the energy supply device is designed to be moved over the construction region and a predefined target direction (X) is specified to the energy supply device for this movement; and wherein the energy supply device comprises a number of radiation emitters which are arranged along an arrangement direction (Y) transversely to the predefined target direction (X); and, depending on the points, the control device specifies to the radiation emitters the emission locations at which radiation should be emitted over the construction region; in which calibration method it is determined whether the movement of the energy supply device leads to a deviation of the movement direction (B) from the predefined target direction (X) and the control device is prompted to specify other emission locations to the radiation emitters on the basis of a determined deviation.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
The present invention relates to a method of treatment of objects produced by an additive manufacturing method, having at least one surface formed from a polymer having a glass transition temperature of at least 120°C, and preferably being formed from such a polymer, and in which the surface of the object is contacted with an organic or inorganic solvent. Such a treatment can smooth the surface of the objects and improve relevant mechanical properties. The present invention further relates to three-dimensional objects produced by such a method and to the use of organic or inorganic solvents for reduction of surface roughness and/or for improvement of mechanical properties and/or chemical stability.
The invention relates to a filter device (1) for filtering a process gas. In particular, the process gas can be a process gas of a device (101) for the additive manufacture of three-dimensional objects (102), and the filter device (1) comprises: a filter chamber (10), at least one filter element (20) which is arranged in the filter chamber and which is designed to filter the process gas, wherein a filter residue remains, a fluid flow generating device (40, 40') which is designed to generate a fluid flow, and a conveyor device (50) for conveying the filter residue in the fluid flow, said conveyor device being designed and/or arranged such that the filter residue is at least partly removed from the filter chamber (10) and is conveyed back into the filter chamber (10).
The invention relates to a passivating device (1) for passivating a filter residue resulting in a filter device (10). The passivating device (1) comprises an outlet region (3, 3') for receiving filter residue from the filter device (10), a fluid feed (4, 4') for supplying a fluid flow of a fluid, which can comprise a passivating agent, to the outlet region (3, 3'), a fluid discharge (5) for discharging the fluid flow and the filter residue out of the outlet region (3, 3'), and an energy supply device (70, 70', 70'') for supplying the fluid flow and/or the filter residue with energy. The passivating device (1) is designed and/or can be controlled so as to produce a chemical reaction between the filter residue and the passivating agent at least partly in an entrained flow. In addition, the passivating device optionally comprises a passivating agent feed for mixing the fluid flow with a passivating agent.
The invention relates to a method and a device (60) for generating optimized process variable values (PGO) for an additive manufacturing process of a manufactured product (2, 2', 2"). For this purpose, request data (AD) of the manufactured product (2, 2', 2") is provided, said data comprising at least geometric data (GD) of the manufactured product (2, 2', 2"). A region (G) is then defined which encompasses the manufactured product (2, 2', 2"), said manufactured product comprising at least one segment (SG, SG1, SG2, SG3). An optimization method is then carried out for at least one segment (SG, SG1, SG2, SG3) of the manufactured product (2, 2', 2") in the defined region (G) in order to select at least one optimal parameter set (PS), which comprises a defined group of process parameter values, from a number of candidate parameter sets (KPS) and in order to ascertain an optimized segment scanning direction distribution (SSV) using a defined target function (ZF) and the request data (AD). The optimal parameter set (PS) and the optimized segment scanning direction distribution (SSV) are provided in the form of optimized process variable values (PGO). The invention additionally relates to a method and a control data generating device (54, 54') for generating control data (BSD, PSD), to a method for controlling a control device (50) for a production device (1) for an additive manufacturing process, and to a corresponding production device (1).
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/36 - Process control of energy beam parameters
B22F 10/366 - Scanning parameters, e.g. hatch distance or scanning strategy
B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention relates to a method and a device (70) for ascertaining property values of a segment (SG, SG1, SG2, SG3) of a manufactured product (2, 2', 2"), which is made of multiple layers (L, L1, L2, L3, L4) of a construction material (13), of an additive manufacturing process. In the process, a parameter set (PS, PS') is ascertained which comprises a defined group of process parameter values for the construction process of at least one layer (L, L1, L2, L3, L4) of the segment (SG, SG1, SG2, SG3). At least one process parameter value comprises a layer scanning direction arrangement (HS2, HS3). Furthermore, at least one segment scanning direction distribution (SSV) is ascertained for the construction process of the segment (SG, SG1, SG2, SG3). A macroproperty value (MWA) of the segment is ascertained on the basis of the parameter set (PS) and the segment scanning direction distribution (SSV). The invention additionally relates to a method and a testing device (80) for testing a manufactured product (2, 2', 2"), to a control data generating device (54, 54') which comprises such a testing device (80), to a control device (50) for a production device (1), said control device comprising such a control data generating device (54, 54'), and to a production device (1). The invention also relates to a method for setting up a basic property database (EDB) and to a property database system (DBS) comprising such a basic property database (EDB).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention relates to a method for oxidizing particles on a filter element of an additive manufacturing device. The additive manufacturing device has a process chamber (3) for producing a three-dimensional object (2) and a circulating system (31, 32, 33, 34, 35, 40) with a gas circuit, which is closed during operation, for a protective gas, which is conducted through the process chamber (3). A filter system (40) is connected to the circulating system, wherein the filter system has at least one filter chamber (41) which contains a filter element (43) for filtering particles in the protective gas flow, said filter elements being cleanable by a gas pressure pulse. The filter element is then cleaned by means of a gas pressure pulse, and the cleaned filter element is then exposed to an oxidizing agent for a period of time defined in advance or the cleaned filter element is exposed to said oxidizing agent for a period of time which is controlled using a sensor for detecting the concentration of the oxidizing agent.
B01D 46/48 - Removing dust other than cleaning filters
B01D 46/56 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
B22F 12/90 - Means for process control, e.g. cameras or sensors
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
18.
DETECTING THE PROGRESS OF AN OXIDATION PROCESS OF A METAL CONDENSATE
The invention relates to a method for oxidizing welding fume residue of an additive manufacturing device designed to process a metal-based construction material. The additive manufacturing device has a process chamber (3) for producing a three-dimensional object (2) and a recirculating system (31, 32, 33, 34, 35, 40) with a gas circuit for a protective gas which is conducted through the process chamber (3). In the method, the welding fume residue is exposed to an oxidizing agent in a chamber for a passivation period of time, wherein the passivation period of time is terminated on the basis of a difference between oxidizing agent concentrations detected in the chamber by at least one sensor at two points in time separated by a delay.
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
B01D 46/80 - Chemical processes for the removal of the retained particles, e.g. by burning
B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
B22F 12/90 - Means for process control, e.g. cameras or sensors
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
19.
BIODEGRADEABLE PLASTICS FOR USE IN ADDITIVE MANUFACTURING PROCESSES
The present application concerns a plastic powder for use as a building material for the additive manufacturing of a three-dimensional object by selective solidification of the building material at the points corresponding to the cross-section of the three-dimensional object in the respective layer by exposure to radiation, wherein the plastic powder comprises polymer-based particles and an additive for imparting biodegradability in an amount of 0.05 to 5% by weight based on the weight of the polymeric components in the polymer-based powder. The present application further concerns method for the production of such powder, methods for the production of three dimensional objects using such powder as well as three dimensional objects, which have been prepared accordingly, as well as the use of corresponding additives to impart biodegradability to three dimensional objects, which have been prepared accordingly.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 70/00 - Materials specially adapted for additive manufacturing
B33Y 80/00 - Products made by additive manufacturing
20.
ADDITIVE MANUFACTURING APPARATUS AND METHOD FOR PRODUCING A THREE-DIMENSIONAL OBJECT
An additive manufacturing apparatus serves for producing a three-dimensional object (2) by means of successively solidifying layers of a building material (13) within a build area (10) of the additive manufacturing apparatus (1), the layers corresponding to cross-sections of the object (2) to be produced. The additive manufacturing apparatus (1) comprises a process chamber (3) for building the object (2), the process chamber (3) comprising the build area (10) and a ceiling (4a) of the process chamber located opposite the build area (10), and a nozzle element (43) for introducing a gas into the process chamber (3), the nozzle element (43) being arranged in the ceiling (4a) of the process chamber (3). The nozzle element (43) comprises an inlet (61), an outlet (62), and a plurality of gas flow passages (65, 65a, 65b) being in fluidic communication with the inlet (61) and the outlet (62) for receiving a gas at the inlet (61) and supplying the gas through the outlet (62) into the process chamber (3), wherein the outlet (62) faces the build area (10), preferably at least a center region of the build area (10), and the outlet (62) of the nozzle element (43) has a substantially elongate shape, the elongate shape defining a longitudinal direction (l) of the nozzle element (43), and wherein the plurality of gas flow passages (65, 65a, 65b) subdivide a cavity of the nozzle element (65) at least along the longitudinal direction (l).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
21.
APPARATUS FOR ADDITIVE MANUFACTURE OF FINISHED PRODUCTS
The invention relates to an apparatus (1) for the additive manufacture of finished products (2) by successive selective consolidation of layers (S) of a powdered construction material (15), which can be consolidated by means of irradiation, at points which correspond to a cross-section of the finished product (2). The apparatus (1) comprises at least one construction container (5) comprising at least one height-adjustable construction platform (12), and also at least one beam source (21) for irradiation of construction material (13) to be consolidated in a construction area (8) above the construction platform (12). Furthermore, the apparatus (1) comprises at least one coater (16), the coater (16) being designed to apply layers (S) of the construction material (15) to the construction platform (12) and/or to a previously applied layer. The apparatus (1) also comprises at least one residual powder chamber (50) having a receiving opening (55) to receive excess powdered material (13) moved by the coater (16), a region (B) between the construction area (8) and the receiving opening (55) having at least one flow restricting device (60, 61) for the powdered construction material (13). Moreover, a region between the construction area (8) and the residual powder chamber (50) and/or at least a part of the residual powder chamber (50) is preferably covered by at least one cover element (54) leaving the receiving opening (55) free, the surface of the cover element (54) having at least one flow restricting device (60, 61) for the powdered construction material (13). The invention also relates to a cover element (54) for such an apparatus (1), and to a method for producing such an apparatus (1) and such a cover element (54) and to the use of the cover element (54) for the apparatus (1).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/307 - Handling of material to be used in additive manufacturing
The invention relates to a method for removing part (41, 55) of a particle collection device (40, 41, 42, 55) which is loaded with at least highly flammable particles (51). The part (41, 55) is removed from a process gas purification device (100) of an additive manufacturing device (1) by means of the following steps. An inert gas (50, 250) substantially enclosing the particles (51) is provided. The part (41, 55) of the particle collection device (40, 41, 42, 55) is removed from the process gas purification device (100), with the inclusion of the particles (51) in the inert gas (50, 250) being retained.
The invention relates to a pulverulent composition comprising a powder based on at least one polyaryl ether ketone, said composition having at least a first endothermic peak and a second endothermic peak, the first endothermic peak having a peak temperature strictly greater than 280°C, and the second endothermic peak having a peak temperature equal to a value of 200°C to 280°C; the endothermic peaks are measured on a thermogram obtained by differential scanning calorimetry, according to the standard ISO 11357-3: 2018, on first heating, using a temperature ramp of 20°C/minute. The invention also relates to a method for the electromagnetic radiation-mediated layer-by-layer sintering construction of a three-dimensional object from the pulverulent composition, to a method for determining the minimum construction temperature to be used, and also to objects that may be manufactured via this construction process.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
The invention relates to a method for generating control data for a device for additively manufacturing a component in a manufacturing process, in which method the energy beam is moved along a number of solidification paths across the construction field, and operation takes place at least temporarily in a toothing mode in which, when the energy beam is being moved across the construction field, a location-dependent desired welding-in depth of the energy beam is switched over at a plurality of switchover points which are randomly distributed over at least one defined region of a cross-section of the component in the layer in question.
G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
A mixing device (18) serves for producing a powder mixture from a first powder component and at least one second powder component for an additive manufacturing device (1). The mixing device (18) comprises a first container (30) for receiving the first and/or the second powder component, wherein a discharge opening (34) for discharging the first and/or second powder component is provided at a lower limit of the first container (30), and a second container (40) for receiving the first and/or the second powder component, wherein the second container (40) is designed at least partially open toward a top side. The second container (40) has at least one fluidization zone (47), in order to introduce a gas into the second container (40). The mixing device (18) further comprises a powder line (50), which is attached to the discharge opening (34) of the first container (30) and guided into the second container (40).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B01F 3/18 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed solid with solids
The invention relates to a filter device (100) for an additive manufacturing device (1) for purifying a process gas (50) of the additive manufacturing device (1), wherein the filter device (100) has at least one permanent filter (41) for purifying a volume of process gas (50) during operation, and wherein the permanent filter (41) is configured to be temperature-resistant in such a way that a temperature resistance of the permanent filter (41) during operation is higher than 110°C. The invention furthermore relates to an additive manufacturing device and to a method for additive manufacturing.
The invention relates to a method for determining a distance in an additive manufacturing device (1), comprising at least the following steps: outputting (S1) a number of, preferably a plurality of, directed, preferably bundled, beams, in particular light beams (32, 32a, 32b), by means of a number of radiation sources (30, 30a, 30b); detecting (S2) at least one of the directed beams from a first radiation source (30, 30a, 30b) by means of a first detector (33, 33a, 33b) and generating (S3) a signal according to the at least one beam (32, 32a, 32b) impinging on the at least one detector (33, 33a, 33b) wherein a coating element (16a) is arranged spatially between the first radiation source (30, 30a, 30b) and the first detector (33, 33a, 33b); and determining (S4) a distance (d) between a boundary (18) of the coating element (16a) and a surface (19) of a construction base (11, 12) and/or of an object placed on the construction base (11, 12) by means of an evaluation unit (34) on the basis of the signal generated by the detector.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
In a method for controlling an energy input device (20) of an additive manufacturing device for manufacturing a three-dimensional object by means of same, a beam deflection center (23) above the build plane (7) is assigned to each of the number of beams, proceeding from which center said beam is directed at the build plane (7), wherein each beam deflection center (23) is assigned a projection center (23') corresponding to a perpendicular projection of the position of the beam deflection center (23) onto the build plane (7), wherein at least in a portion of an object cross-section the directions of the motion vectors of the number of beams (22) during scanning of the trajectories (54) are defined such that at each of the solidification locations in said portion the motion vector is at an angle with respect to a connection vector from said solidification location toward the projection center (23') of the beam (22) used, which angle is less than a predetermined maximum angle γ1.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 80/00 - Products made by additive manufacturing
The invention relates to a passivation device (100, 200, 300, 400, 500, 600, 700) for passivating filter residues (12) of a filter device (1) arranged in a process gas circuit of an additive manufacturing device, having: a reaction unit (4, 19, 14) comprising: an inlet (6, 16) which is suitable for supplying an oxidizing agent, a coupling unit (2) which can be coupled to the filter device in order to feed the filter residue (12) into the reaction unit, an outlet unit (8) which is suitable for discharging passivated filter residue out of the reaction unit (4, 14, 19), and an energy supply unit (5, 15, 25, 35) which is suitable for producing a reaction between the filter residue and the oxidizing agent in the reaction unit (4, 14, 19).
B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
The invention relates to a method for providing control data for an additive manufacturing device (1) for manufacturing a three-dimensional object (2), said method comprising: a first step (S1) in which computer-based model data of at least one portion of the object to be manufactured is accessed; a second step (S2) in which at least one data model of a construction material layer region to be selectively solidified for manufacturing the at least one object portion is produced, the data model specifying the scanning of locations of the region to be selectively solidified, using at least one beam along a first trajectory (74a, 84) and a second trajectory (75, 85) substantially parallel thereto, the motion vectors of the beams in the construction plane having mutually opposite directional components during the scan along the two trajectories, and it being specified that the distance between a starting point (75A, 85A) of the second trajectory (75, 85) and an end point (74aE, 84E) of the previously scanned first trajectory (74a, 84) is less than half a beam width (B) of the beam at the end point (74aE, 84E) of the first trajectory (74a, 84); and a third step (S3) in which control data corresponding to the at least one data model produced in the second step (S2) is provided for the generation of a control data set for the additive manufacturing device.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The invention is about a composition comprising at least one polymer, wherein the polymer is in the form of a powder, and wherein the polymer comprises at least one thermoplastic polymer, wherein the thermoplastic polymer is selected from at least one polyaryletherketone and/or a copolymer and/or a block-copolymer and/or a polymer blend thereof, wherein the composition has a melt volume rate (MVR) of at least 5 cm³/10 min and a process of manufacturing and a use thereof. The invention also deals with a process for the manufacture of a construction element and the construction element thereof.
C08G 65/40 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols and other compounds
B29B 13/02 - Conditioning or physical treatment of the material to be shaped by heating
The invention relates to a method for the additive manufacture of components (2), wherein a pulverulent or wire-shaped metal construction material is deposited on a platform (4) in layers, melted using a primary heating device (7), in particular using a laser or electron beam (14), and is heated using an induction heating device (8) which has an alternating voltage supply device (9) with an induction generator (16) and at least one induction coil (10) that can be moved over the platform (4). The induction generator (16) is controlled such that the induction generator is driven with a different output at different specified positions of the at least one induction coil (10). The invention additionally relates to a device, to a control method, and to a storage medium.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
H05B 6/10 - Induction heating apparatus, other than furnaces, for specific applications
33.
SELECTIVE SINTERING OF POLYMER-BASED COMPOSITE MATERIALS
Powder mixture for use as build material for production of a three-dimensional object by layer-by-layer consolidation of the build material at the sites corresponding to the cross section of the three-dimensional object in the respective layer, especially by the action of radiation, wherein the powder mixture comprises a first powder and a second powder, wherein the first powder comprises powder particles of a first thermoplastic polymer material and a reinforcing material, wherein the reinforcing material is at least partly embedded into the powder particles of the first powder and/or adheres to the surface thereof, wherein the second powder comprises powder particles of a second thermoplastic polymer material which is the same as or different from the first thermoplastic polymer material, and wherein the powder particles of the second powder do not contain the reinforcing material or contain it only in a proportion of not more than 50% by weight, based on the proportion of the reinforcing material in or on the powder particles of the first powder.
B33Y 70/00 - Materials specially adapted for additive manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
C08L 71/00 - Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
34.
POWDER OUTPUT MODULE FOR AN ADDITIVE MANUFACTURING DEVICE, ADDITIVE MANUFACTURING DEVICE AND METHOD FOR APPLYING A POWDER LAYER
The invention relates to a powder output module for a coating device (16) of a device (1) for additively manufacturing a three-dimensional object (2) via the layer-by-layer application of powder-type construction material and the selective solidifying of the applied layers at points, according to the respective cross-section of the three-dimensional object (2) in the respective layer, wherein the coating device (16) for the layer-by-layer application of the construction material is provided in the device such that it can be moved in at least one movement direction (B) over a working plane (7) of the device (1). The powder output module (18) comprises a powder container (30) for receiving the powder-type construction material and the powder container (30) comprises a supply opening (33) for supplying the powder-type construction material to the powder container (30) and a discharge region (31) facing the working plane (7) during the intended operation of the coating device (16), wherein the discharge region (31) has at least one first output unit (36a, 36b) for outputting powder-type construction material and at least one fluidisation zone (40, 41a, 41b) for the fluidisation of the powder-type construction material using a gas in the the powder container (30). The powder container (30) also comprises at least one first flow reduction element (50a, 50b) provided in the powder container (30).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
The invention relates to an additive manufacturing device (1) for manufacturing a three-dimensional object (2) by selectively solidifying construction material (13) in layers, containing a process chamber (3) with a chamber wall (4), said chamber wall (4) of the process chamber having at least one elongated opening (31). The invention is characterized by a covering device with a cover surface for covering and/or shielding the at least one opening, wherein the extension of the cover surface in the longitudinal direction of the opening (31) is variable, and the cover device has a plurality of identical individual elements which are connected together so as to be movable relative to each other in the longitudinal direction of the opening (31).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
The invention relates to a system comprising a production device (2) for producing three-dimensional components from a powdered building material by applying the building material layer by layer and partially solidifying the building material of a layer by using at least one energy beam for selectively irradiating locations of the layer which correspond to a cross section of the component to be produced, with a building container (1) which is intended for receiving the building material and can be removed from the production device (2), comprising a lift car (3) for removing a filled building container (1) and loading an empty building container (1) into the production device (2) and comprising a guiding device (4) for guiding the lift car (3) in relation to the production device (2) during an operation of removing or loading the building container (1), with the guiding device (4) being fastened without coming into contact with the production device (2).
B29C 64/259 - Enclosures for the building material, e.g. powder containers interchangeable
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
37.
METHOD AND DEVICE FOR THE AFTERTREATMENT OF PARTICLES CARRIED IN A PROCESS GAS, AND FILTER THEREFOR
The present invention relates to a method for the aftertreatment of particles (51) carried in a process gas (50) of a device (1) for the additive manufacture of three-dimensional objects, said particles (51) being supplied to a filter chamber (40). An oxidant (60) is fed to the particles (51) and an oxidation reaction of the particles (51) with the oxidant (60) is triggered.
B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
38.
FLOW DEVICE AND FLOW METHOD FOR AN ADDITIVE MANUFACTURING DEVICE, AND ADDITIVE MANUFACTURING DEVICE WITH SUCH A FLOW DEVICE
Flow device for an additive manufacturing device (1) for manufacturing a three-dimensional object (2) by means of selectively solidifying a construction material layer by layer in a construction region (10), comprising: a process chamber (3), a gas supply apparatus for producing a gas flow in the additive manufacturing device (1), at least one gas inlet (32, 43, 132, 232) for introducing the gas stream into the process chamber (3), and at least one gas outlet (34, 35) for discharging the gas flow out of the process chamber (3), and a gas feed line (30) which is provided outside the process chamber (3) in order to introduce gas to the at least one gas inlet (32, 43, 132, 232), wherein the gas feed line (30) comprises at least one first line portion (31, 41) which adjoins the gas inlet (32, 43, 132, 232) and which extends over a length (L) along a first extension direction of the gas feed line (30), wherein the first extension direction is substantially straight and wherein the first line portion (31, 41) extends over a maximum value of a width (B) which extends transversely with respect to the first extension direction and parallel to the construction region (10), and wherein the length (L) of the first line portion (31, 41) is at least as great as half the maximum value of the width (B), and wherein the first line portion (31, 41) also comprises a first portion (51) which is at a distance from the gas inlet (32, 43, 132, 232) and which, in addition to a wall of the first line portion (31, 41), comprises at least one first flow rectification unit (54 150) which is designed to align the gas flow substantially in the first extension direction.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
Polymer powder for use as build material for additive manufacturing of a three-dimensional object by selective solidification of the build material at the site corresponding to the cross section of the three-dimensional object in the respective layer, especially by the action of radiation, wherein the polymer powder comprises a mixture of polymer-based particles and particles of a particulate additive and wherein the particulate additive is selected such that the crystallization point of the mixture of the polymer-based particles and the particulate additive is essentially not elevated compared to the crystallization point of a mixture of the polymer-based particles without the particulate additive.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 80/00 - Products made by additive manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
40.
METHOD AND DEVICE FOR GENERATING CONTROL DATA FOR AN ADDITIVE MANUFACTURING DEVICE
Described are a method and a control data generation device (54, 54') for use therein for generating control data (PSD) for a device (1) for the additive manufacture of a manufactured product (2) in a manufacturing process, in which build material (13) is built up and selectively solidified, wherein, for the solidification process, the build material (13) is irradiated with at least one energy beam (AL) on a build field (8), and an incident area (AF) of the energy beam (AL) is moved over the build field (8) in order to fuse the build material (13). The control data (PSD) are generated such that the energy beam (AL) has an intensity distribution (GIV), at the incident area (AF) on the build field (8), in a section plane (x, y) running perpendicularly to the beam axis (SA) of the energy beam (AL), which has at least one local minimum (MIZ) in a central region along at least one secant of the intensity distribution (GIV) in the section plane (x, y) and has an intensity profile curve (IPK), running along the edge (R) of the intensity distribution (GIV), which has, at least at one point, a maximum value (MAX), and, at least at one point in a region opposite the maximum value (MAX) on the intensity profile curve (IPK), a minimum value (MIN). Also described are a method and a control device (50) for controlling a device (1) for the additive manufacture of a manufactured product (2) using this control data (PSD), and a device (1) for the additive manufacture of manufactured products.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A method and an irradiation apparatus (20), usable to this end, for irradiating a material (13) with at least one energy beam (AL), in particular for locally fusing the material (13), are described, wherein an area of incidence (AF) of the energy beam (AL) on the material (13) is moved. In the process, at least one first energy beam (EL1) and one second energy beam (EL2) are generated, the second energy beam (EL2) is moved relative to the first energy beam (EL1) and the first energy beam (EL1) and the second energy beam (EL2) are coupled in a common beam path (SA) into an energy beam movement unit (23) in such a way that they are moved together over the material (13) as a combination energy beam (AL). Furthermore, a method and an apparatus (1) for additive manufacturing of manufacturing products (2) are described.
Polymer powder for use as build material for production of a three-dimensional object by layer-by-layer melting and solidification of the build material at the sites corresponding to the cross section of the three-dimensional object in the respective layer by the action of radiation, preferably by the action of NIR radiation, wherein the polymer powder comprises a dry blend of polymer-based particles and particles of an NIR absorber, wherein the NIR absorber comprises carbon black or is carbon black and wherein the proportion by weight of the carbon black in the total weight of the polymer particles and carbon black particles is in the range of at least 0.02% and at most 0.45%, and/or wherein the carbon black has an average primary particle diameter in the range from 15 nm to 70 nm, preferably of at least 26 nm and/or at most 58 nm.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 80/00 - Products made by additive manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
43.
FLOW DEVICE AND FLOW METHOD FOR A DEVICE FOR ADDITIVELY MANUFACTURING A THREE-DIMENSIONAL OBJECT
The invention relates to a flow device which is used for a plurality of energy-beam exit regions (25a-25d, 125a-125d, 225a-225f) in an additive manufacturing device (1) for additively manufacturing a three-dimensional object (2) by means of the layer-by-layer application and selective solidification of a construction material by irradiation with energy radiation. The flow device comprises a process chamber (3) having a top wall (9). The energy-beam exit regions (25a-25d, 125a-125d, 225a-225f) are arranged in the top wall (9) of the process chamber (3) in a reference plane (R). A plurality of energy-beam deflection units (20a, 20b) of the additive manufacturing device (1) is arranged above the energy-beam exit regions (25a-25d, 125a-125d, 225a-225f). Furthermore, the flow device comprises at least one gas distribution unit (17, 17', 117) and a plurality of gas outlets (30, 33) for discharging a gas into the process chamber (3). The gas outlets (30, 33) are formed at least partly by the gas distribution unit (17, 17', 117). The gas distribution unit (17, 17', 117) protrudes, at least in an operating position on the top wall (9) and within the process chamber (3), from the top wall (9) or the reference plane (R) and thus projects into the process chamber (3). At least in an operating position of the gas distribution unit (17, 17', 117), the gas outlets (30, 33) are provided in an upper height region of the process chamber (3) and are directed into the process chamber (3) in such a way that gas at least partially sweeps over the reference plane (R) during operation. Furthermore, at least one gas supply line (60) for supplying the gas to the gas distribution unit (17, 17') is arranged above the top wall (9). An end portion (61) of the gas supply line (60) is arranged between at least two of the energy-beam deflection units (20a, 20b).
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
The invention relates to a method for releasing an additive manufacturing product (2) from a support structure (50, 50') and/or for releasing the support structure (50, 50') from a construction platform (12) using an electric current in at least one target melting region (51, 51') of the support structure (50, 50') such that the electric current leads to a melting of the support structure (50, 50') in at least one section of the target melting region (51, 51'). The method can optionally include at least one separation step.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
45.
COLLECTION DEVICE FOR AN ADDITIVE CONSTRUCTION APPARATUS AND ADDITIVE CONSTRUCTION METHOD AND ADDITIVE CONSTRUCTION APPARATUS FOR ADDITIVELY MANUFACTURING AT LEAST ONE COMPONENT REGION OF A COMPONENT
The invention relates to a collection device (10) for an additive construction apparatus (100) for additively manufacturing at least one component region of a component (15). The collection device (10) comprises at least one collection means (16) for collecting process by-products of an additive construction method carried out by means of the additive construction apparatus (100), and at least one holding means (12) for fixing the collection device (10) on an inductor (14) of an inductive temperature-control device of the additive construction apparatus (100). The invention further relates to an additive construction method and to an additive construction apparatus (100) for additively manufacturing at least one component region of a component (15).
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
46.
CALCULATING EXPOSURE PATHS HAVING LOW COMPONENT DISTORTION
A computer-assisted method for providing control data for an additive manufacturing device (1) for manufacturing a three-dimensional object (2) by means of said device, wherein the object (2) is manufactured by applying a build-up material (15) layer-by-layer and solidifying the build-up material (15) by feeding radiation energy to points in a layer that are associated with the cross section of the object (2) in this said by scanning said points with at least one energy beam bundle (22) in accordance with a set of energy input parameters along a number of solidification paths (30, 31) in a construction plane by means of at least one energy-inputting means (20) for inputting energy into the build-up material (15). The method for providing control data comprises: a first step (S1) of accessing computer-based model data from two cross sections of an object portion which are to be solidified and which are chronologically successive, preferably directly chronologically successive, in the manufacturing process; a second step (S2) of producing a data model of each of the two cross sections, wherein a scanning of the build-up material layer with at least one energy beam bundle (22) along at least one solidification path (30, 31) is specified in the data model for each of the two cross sections, wherein it is specified that, when the points of a build-up material layer which are associated with a cross section to be solidified are scanned, the region of contact of at least one energy beam bundle (22) with the build-up material is moved along at least one portion of a distortion field isoline, wherein a portion of a distortion field isoline along which the contact region is moved when the cross section that is to be solidified at a later time is scanned is selected such that it has a different position and/or orientation in the construction plane with respect to a portion of a distortion field isoline along which the contact region is moved when the cross section that is to be solidified first is scanned; and a third step (S3), in which control data corresponding to the data model produced in the second step (S2) are provided for the generation of a control data set for the additive manufacturing device (1).
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
47.
DEVICE AND METHOD FOR THE ADDITIVE MANUFACTURING OF A THREE-DIMENSIONAL OBJECT
The invention relates to a manufacturing device (1) for the additive manufacturing of a three-dimensional object (2), which manufacturing device comprises a flow modification element (32, 40) for introducing a gas stream into a process chamber (3). The flow modification element (32, 40) comprises: a body, which has a gas inlet side (41) and a gas outlet side (42); and a plurality of channels (43), which penetrate the body from the gas inlet side (41) to the gas outlet side (42), have an inlet opening (48) on the gas inlet side (41) and an outlet opening (49) on the gas outlet side (42) and are separated from one another by a wall, a channel cross-sectional area (44) of at least one channel (43) perpendicular to a direction of extent of the channel being reduced in a first length portion (152) of the channel proceeding from the outlet opening (49) along the direction of extent, the first length portion (152) being shorter than a total length (L) of the channel between the inlet opening (48) and the outlet opening (49).
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
48.
LAYERING APPARATUS FOR THE ADDITIVE MANUFACTURE OF AT LEAST ONE COMPONENT REGION OF A COMPONENT, METHOD FOR OPERATING SUCH A LAYERING APPARATUS, AND STORAGE MEDIUM
The invention relates to a layering apparatus (10) for the additive manufacture of at least one component region of a component (40) by means of an additive layering method. The layering apparatus (10) comprises a process chamber (20), within which there are arranged: at least one construction field (I) for constructing the component region in layers from a material (56); at least one flow-guiding device (16) which comprises at least one channel (36) having an outlet opening (14a) for introducing a shielding gas into the process chamber (20); and a gas outlet device (30) which is stationary relative to the construction field (I) for discharging the shielding gas from the process chamber (20). The flow-guiding device (16) is designed, during operation of the layering apparatus (10), to arrange an end region of the channel (36) of the flow-guiding device (16) comprising the outlet opening (14a) above a plane of the construction field (I) and to move said end region relative to the plane of the construction field (I) in such a way that at least a predominant part of the protective gas can be guided locally over a sub-region of the construction field (I) in a main flow direction (H) at least substantially parallel to the plane of the construction field (I). The invention also relates to a method for operating such a layering apparatus (10), and to a storage medium having a program code for controlling such a layering apparatus (10).
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B23K 26/142 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
49.
ADDITIVE PRODUCTION DEVICE AND ASSOCIATED ADDITIVE PRODUCTION METHOD
The invention relates to an additive production device for producing a three-dimensional object, comprising a layer application device (16) for applying a building material layer to layer, an energy input device (20) which comprises a carbon monoxide laser (21) and a radiation supply device for supplying laser radiation of the carbon monoxide laser to points in each layer which are associated with the cross-section of the object in said layer, and a laser power modification device (27) which, in the event of an increase in laser power, is suitable to cause an increase in the power impinging on the building material per unit of area within a period of time, which is less than 300 μs and/or greater than 50 ns, and/or, in the event of a reduction in laser power, to cause a drop in the power impinging on the building material per unit of area within a period of time, which is less than 100 μs and/or greater than 100 ns.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/268 - Arrangements for irradiation using electron beams [EB]
B29C 64/273 - Arrangements for irradiation using electron beams [EB] frequency modulated
50.
DEVICE AND METHOD FOR THE GENERATIVE MANUFACTURE OF A THREE-DIMENSIONAL OBJECT
The invention relates to a flow device for a device (1) for manufacturing a three-dimensional object (2) by selectively solidifying construction material (15) in layers at the cross-section of the object (2) to be produced in locations corresponding to each layer by means of irradiation using an energy beam (22, 22'). The device comprises a gas conveying device for generating a gas flow (50, 51, 52, 53, 54, 55) and a process chamber (3) with a construction field (8) for constructing the object (2). The process chamber (3) has at least one first gas inlet (31, 32) for introducing a gas flow into the process chamber (3) and a first gas outlet (34) and a second gas outlet (33) arranged at a distance from the first gas outlet (34) for discharging a gas flow out of the process chamber (3). The first gas outlet (34) is arranged closer to the construction field (8) than the second gas outlet (33) in a direction perpendicular to the construction field (8). The extension of the first gas outlet in a direction perpendicular to the construction field (8) is provided substantially within a first vertical range of the process chamber (3), and the extension of the second gas outlet in a direction perpendicular to the construction field (8) is provided substantially within a second vertical range of the process chamber (3), wherein the first vertical range of the process chamber corresponds to the lower third of the distance from the construction field (8) to a process chamber cover (4a), and the second vertical range of the process chamber (3) corresponds to the upper four fifths of the distance from the construction field (8) to the process chamber cover (4a).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
51.
METHOD FOR PRODUCING A POWDER COMPRISING AT LEAST ONE POLYMER AND SAID TYPE OF POWDER
BBmBgg of the polymer (determined according to DIN EN ISO 11357) if the polymer is a fusible amorphous polymer. Compared to a point in time before the start of the treatment, the bulk density of the powder can be increased by at least 10% after the treatment (or in the case of polymer, copolymer or polymer blends of polyamide, it is increased by at least 2% and more) and the BET surface area of the powder is reduced by at least 10%, and optionally the pourability is improved by at least 10%.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
52.
METHOD AND DEVICE FOR GENERATING CONTROL DATA FOR AN ADDITIVE MANUFACTURING DEVICE
ZZZ) of the construction material (13) is determined so that the construction material (13) is melted using conduction mode welding. This is used to determine an optimised intensity profile (IO) of the energy beam (AL), which is substantially not rotationally symmetrical at the impact surface (22) on the construction site (8). The construction material (13) is irradiated with an energy beam (AL) at the determined optimised intensity profile (IO). The invention also relates to a control method and to a control device (50) for an additive manufacturing device (1), and to a corresponding additive manufacturing device (2).
G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
G02B 27/09 - Beam shaping, e.g. changing the cross-sectioned area, not otherwise provided for
The invention relates to a method for providing control data for an additive manufacture device, having: a first step (S1) of accessing model data: a second step (S2) of generating a data model in which a construction material layer region (51) to be solidified during the production of an object section is specified for a construction material layer, wherein the region (51) to be solidified is divided into a first sub-region (51a) and a second sub-region (51b), and a respective solidification scan of the region (51) locations to be solidified is specified in a data model, said scan solidifying the construction material, and a repeated scan is specified at the locations of the second sub-region (51b) but not at the locations of the first sub-region (51a), the energy input parameter during the repeat scan being measured such that the temperature of the construction material lies above a melting temperature; and a third step (S3) of providing data models generated in the second step (S2) as control data for integrating into a control data set.
The invention relates to a manufacturing device (a1) for the additive manufacture of a three-dimensional object (a2), wherein the object is manufactured by applying layer after layer of a building material (a15) and selectively solidifying the building material, in particular by supplying radiation energy to points (a9) in each layer associated with the cross-section of the object in this layer, in that the points (a9) are scanned with at least one zone of influence, in particular a zone of influence of the radiation of a radiation beam (a22), and during operation the movable gas outlet (32) is associated with a reference process point (9) and/or with a target gas supply zone of the movable gas inlet associated with the reference process point in order to supply a flow of process gas to a target venting zone (22) of the movable gas outlet (32).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
55.
MANUFACTURING DEVICE AND METHOD FOR ADDITIVE MANUFACTURING WITH MOVABLE GAS FLOW SUPPLY
The invention relates to a manufacturing device (a1) for the additive manufacture of a three-dimensional object (a2) and to a corresponding process, wherein the object is manufactured by applying layer after layer of a building material (a15) and selectively solidifying the building material (15), in particular by supplying radiation energy to points (9) in each layer associated with the cross-section of the object in this layer, in that the points (9) are scanned with at least one zone of influence, in particular a zone of influence of the radiation of a radiation beam (a22), and during operation a movable gas inlet (30) approaches a reference process point (9) and/or a target gas supply zone (21) associated with the reference process point (9) in order to supply a flow of process gas thereto, and the process gas is discharged through a stationary gas outlet (31).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
56.
METHOD AND DEVICE FOR IMPROVING THE COMPONENT QUALITY OF OBJECTS MANUFACTURED USING AN ADDITIVE MANUFACTURING METHOD
A method for providing control data for an additive manufacturing device has: a first step (S1) of accessing computer-based model data of at least one section of the object to be manufactured; a second step (S2) of generating at least one data model of a region of a build-up material layer to be selectively fused to manufacture the at least one object section, wherein the data model specifies the fusing of the build-up material by the movement of at least one beam along at least one fusion path (64, 65), wherein for the end point (64E, 65E) of the at least one fusion path (64, 65) a set of energy input parameter values is specified which acts as a reference value for the radiation power per unit area in the radiant action zone of the beam on the build-up material, said reference value being less than the reference value for the radiation power per unit area at other places on the fusion path (64, 65); and a third step (S3), in which control data corresponding to the at least one data model generated in the second step (S2) are provided for generating a control data set for the additive manufacturing device.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a computer-aided method for providing control data for an additive manufacturing device comprising: a first step (S1) of accessing computer-based model data of a portion of a cross-section of the object, a second step (S2) of producing a data model of the portion, solidification of the construction material by means of at least one energy beam along at least one solidification path being specified in the data model, it being specified that a plurality of solidification path segments, in particular the entire number of solidification paths, is scanned at least twice by means of an energy beam, the energy amount to be input during the scanning of a solidification path segment being specified in such a way that either the energy amount introduced in the first scan of said solidification path segment or the energy amount introduced in a subsequent scan of said solidification path segment is too low to be able to bring out solidification of construction material by exceeding the melting temperature of the construction material within the area of incidence of the energy beam in question, and a third step (S3), in which control data corresponding to the data model produced in the second step (S2) are provided for the generation of a control data set for the additive manufacturing device.
The invention relates to a method for providing a control command set for an additive manufacturing device for producing at least one three-dimensional object, the at least one object being produced layer by layer in the additive manufacturing device by solidifying a construction material at the locations corresponding to the cross-section of the object within a layer, said method comprising at least the following steps: providing a parameter set, which consists of a number of parameters, and a construction rule, which is suitable for describing at least one section of the object by means of the parameter set geometrically as a number, preferably a plurality, of linear or flat elements in space, which in the case of a plurality are particularly preferably similar, in particular identical; generating a computer-based layer model of the section of the object by determining, for each layer, the position and shape of a cross-section of the section of the object within said layer; generating a control command set for an additive manufacturing device by means of which the production of the section of the object is implemented on the basis of the layer model.
G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
59.
METERING DEVICE, DEVICE AND METHOD FOR THE ADDITIVE MANUFACTURING OF A THREE-DIMENSIONAL OBJECT
The invention relates to a metering device which is used as an equipping or retrofitting set for a device (1) for manufacturing at least one three-dimensional object (2) by solidifying pulverous construction material (15) layer by layer at the points corresponding to the cross-section (28) of the object (2) to be manufactured in the layer in question, the device (1) comprising a coater (16, 16') movable over a building platform (8) in the coating direction (H), for applying a layer of the pulverous construction material (15) to the building platform (8), and the metering device having a metering container (18) for storing the pulverous construction material (15), and at least one opening (31, 31a, 31b, 31', 31'') being provided in an output region (19) of the metering container (18) for outputting the pulverous construction material (15), which output region substantially faces the building platform (8) during normal use of the metering device. The opening (31, 31a, 31b, 31', 31'') can be moved and/or extended across at least a portion of the output region (19) at least in a movement direction (A, A', A'') extending substantially transversely, preferably perpendicularly, to the coating direction (H).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
60.
BUILDING MATERIAL AND RADIATION SOURCE MODULE AND ADDITIVE MANUFACTURING DEVICE COMPRISING THE MODULE
A building material and radiation source module (16) for an additive manufacturing device (1) for manufacturing a three-dimensional object (2) by a solidification of a building material (18) within a building area (8) comprises: at least two units (42), each unit comprising a building material outlet (40) for generating a building material stream (71) directed to a target area (75) within the building area (8) and at least one radiation source (41) for providing a radiation (70) to interact with the building material stream (71), wherein each building material outlet (40) is individually switchable and each radiation source (41) is individually switchable and wherein the module (16) is configured to be continuously moved over at least a part of the building area (8) and to selectively apply the building material streams (71) and the radiation (70) in regions of an object (2) to be built, by selectively switching the building material outlets (40) and the radiation sources (41).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
A method for manufacturing a three-dimensional object (2) on building platform (12) by layer-wise solidification of a building material (15) at positions in the respective layer that correspond to the cross-section of the object (2), the method comprising: a) applying a layer of the building material on at least a surface portion of the building platform or on a previous layer, b) selectively solidifying the building material of the layer at positions that correspond to the cross-section of the object in the layer, c) repeating steps (a) and (b) until the object is completed. The surface portion of the building platform (12) comprises a material to which the building material (15) connects while being solidified. The material of the surface portion and the building material (15) have substantially different linear thermal expansion coefficients to an extent that after solidification, the object (2) and the building platform (12) separate from each other automatically or semi-automatically, when the temperature of the object (2) and the building platform (12) is reduced after the completion of the object (2).
Powder mixture for use in the manufacture of a three-dimensional object by means of an additive manufacturing method, wherein the powder mixture comprises a first material and a second material, wherein the first material comprises a steel in powder form, wherein the second material comprises a reinforcement material different from the first material, wherein the powder mixture is adapted to form a composite object when solidified by means of an electromagnetic and/or particle radiation in the additive manufacturing method, and wherein the reinforcement material comprises nanoparticles.
The invention relates to a method and a device for generating control data (PS) for a device (30) for the additive manufacture of at least one component layer of at least one component (31) in a manufacture process, wherein at least one layer of a construction material is introduced into a process chamber (32), and the construction material of the layer is selectively solidified by irradiating at least one sub-region of the layer using an irradiation unit (50). The control data (PS) is generated such that the device (30) for the additive manufacture is actuated such that an irradiation point (BL) is moved by the irradiation unit (50) along a number of scanning lines (5, 5', 5") of one or more irradiation strips (1, 1', 1") in order to solidify the construction material. Each irradiation strip (1, 1', 1") has a specified maximum width (a, a', a'', a''', a*, a**, a***), wherein the scanning lines (5, 5', 5") run within the maximum width (a, a', a'', a''', a*, a**, a***) of the irradiation strip (1, 1', 1'') and substantially transverse to a feed direction (VV) of a solidification region along the irradiation strip (1, 1', 1"). At least two irradiation strips (1, 1', 1") of a layer are assigned a different maximum width (a, a', a'', a''', a*, a**, a***) depending on a control parameter, in particular of a component geometry. The invention additionally relates to a method for the additive manufacture of at least one component layer of at least one component (31), to a controller (60) for a device (30) for the additive manufacture of a component layer of a component (31), and to a device (30) for the additive manufacture of components (31), said device comprising such a controller (60).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
The present invention relates to a composition comprising at least one polymer, the polymer being present in the form of polymer particles and the composition contains at least one water-soluble agent, wherein the water-soluble agent has a proportion of at most 1 wt.% to the composition. The present invention further relates to a method for producing the claimed composition according to the invention and to the use thereof.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 70/00 - Materials specially adapted for additive manufacturing
The invention relates to a composition comprising at least one polymer, wherein the polymer is provided in the form of polymer particles, and the composition contains at least one additive, said additive having a proportion of maximally 2 wt.% of the composition. The invention additionally relates to a method for producing the composition according to the invention, to a method for producing a component comprising the composition according to the invention, and to the use of the composition according to the invention.
B33Y 70/00 - Materials specially adapted for additive manufacturing
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a control command set (40) for controlling the production of at least one three-dimensional object (2) by means of an additive production device (1), the control command set comprising encrypted object description data (43) which describes the shape and/or size of a portion (2, 2a, 2b, 2c, 2d) of the at least one object (2) to be produced and which can be decrypted by the additive production device (1) by means of a key permanently stored therein.
G06F 21/62 - Protecting access to data via a platform, e.g. using keys or access control rules
G06F 21/10 - Protecting distributed programs or content, e.g. vending or licensing of copyrighted material
H04L 29/06 - Communication control; Communication processing characterised by a protocol
B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
67.
DEVICE AND METHOD FOR THE ADDITIVE MANUFACTURING OF A THREE-DIMENSIONAL OBJECT
The invention relates to a fit-out- or retrofit kit for a production device (1) for the additive manufacturing of a three-dimensional object (2) by the layered application and selective solidification of a construction material (13), preferably a powder, said kit comprising a build platform (11, 12), on which the object is to be built, and a recoater (16) for the application of a layer of the construction material to the build platform or to a layer which has already previously been applied. The recoater contains a recoating element (30) which is capable of spreading out the applied construction material to form a layer. The build platform and the recoating element are positioned in such a way that they are rotatable relative to one another about a rotational axis (A). The recoating element is designed and positioned in such a way that during the relative rotation of the build platform and the coating element in a rotational direction (D) that causes the applied construction material to spread out to form a layer, a force is exerted on the construction material, which force has a radial component in a direction towards the axis of rotation.
The present invention relates to a composition comprising at least one polymer system and at least one anti-agglomeration agent, wherein the polymer system is selected from at least one thermoplastic polymer, wherein the bulk density of the composition is more than 300 g/l. The present invention further relates to a method for producing the composition according to the invention and to the use thereof.
A calibration method serves for calibrating a production device for generatively producing a three-dimensional object by selectively solidifying a building material, preferably a powder, layer by layer, prior to a build job in which the three-dimensional object is to be produced. The production device comprising an application device for applying a layer of the building material and a solidification device for selectively solidifying the applied layer at the positions corresponding to a cross section of the object to be produced. The production device is adapted and/or controlled to repeat the steps of applying and selectively solidifying until the object is completed. The calibration method comprises performing a dummy job, and, after the completion of the dummy job, controlling the solidification device to act upon at least one predetermined position, measuring at least one actual position onto which the solidification device really acts, determine a deviation between the at least one predetermined position and the at least one actual position, and generate calibration data for the production device based on the determined deviation.
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
The invention relates to a method for additive production of a component layer (10) of a component and comprises at least the steps of: a) generating at least one layer (12) from a powdery component material (48) in the region of a structuring and joining zone (42); b) subdividing model data of the layer (12) into virtual sub-regions by means of a control device (80); c) selecting at least one of the virtual sub-regions by means of the control device (80); d) localized heating of at least one heating region (102) in a real sub-region (14) of the layer (12) corresponding with the selected virtual sub-region by means of a heating device (90); e) verifying whether a temperature of the layer (12) has, at least in a predetermined inspection region (104, 104'), a predetermined minimum temperature (Tmin); and f) localized solidifying of the layer (12) at least in a predetermined solidifying region (16) by selective irradiation by means of at least one energy beam (60) of an energy source (58), if the layer (12) has at least the predetermined minimum temperature (Tmin) in the inspection region (104, 104'). The invention furthermore relates to a device (28) and a storage medium having program code.
The invention relates to a method for providing control data for an additive manufacturing device, which method comprises: a first step (S1) of accessing computer-based model data of at least one section of the object to be manufactured, a second step (S2) of defining a first portion (51) and a second portion (52) within the at least one object section, which portions adjoin each other at a boundary (55), a third step (S3) of producing at least one data model of a region of construction material layer, which region is to be selectively consolidated in order to produce the at least one object section, in which region a first portion cross-section (51a) cuts through the first portion (51) and a second portion cross-section (52a) cuts through the second portion (52), it being specified in the data model that at least one energy input parameter has, on average, a different value in the first portion cross-section (51a) than in the second portion cross-section (52a) and that the at least one energy beam is moved over the boundary (55) at least once during the input of energy into the construction material by means of the at least one energy beam, and a fourth step (S4), in which control data corresponding to the at least one data model produced in the third step (S3) are provided for the generation of a control data set for the additive manufacturing device.
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
72.
LIFT SYSTEM FOR A DEVICE, AND A METHOD FOR GENERATIVELY PRODUCING A THREE-DIMENSIONAL OBJECT
The invention relates to a lift system (30) for use in a production device (1) for generatively producing a three-dimensional object (2) by layered application and selective solidifying of a construction material (15), preferably a powder, wherein the production device contains a construction underlay (11 and 12), on which the object is to be constructed on a construction surface (IIa). The lift system contains a holding device (10), which is suitable for holding and adjusting the height of the construction underlay. The holding device is arranged in a position corresponding to an operating state within the production device such that the construction underlay is attached to the bottom side of the holding device such that the construction surface points in the direction of the holding device.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/232 - Driving means for motion along the axis orthogonal to the plane of a layer
The invention relates to a method for cooling a three-dimensional object (2) produced by selective solidification, layer-by-layer, of a powdery construction material (15) and for cooling unsolidified construction material (13) in which the three-dimensional object (2) is embedded, by treatment with a fluid medium. The fluid medium is formed from a carrier gas which is enriched selectively with an additional component comprising a further gas and/or a liquid, and/or from a gas mixture from which at least one mix component is selectively removed at least partially.
B29C 64/379 - Handling of additively manufactured objects, e.g. using robots
B29C 64/20 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering - Details thereof or accessories therefor
B29C 64/188 - Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
The invention relates to a measurement system (40) for producing a three-dimensional object (2) by selective, layered solidifying of a structural material (15). The device (1) contains an exposure device (18) for selective exposure of a layer of the structural material (15), applied in a working plane (7) of the device (1), at locations which correspond to a cross-section of the object (2) to be produced, in order to solidify the exposed locations. The exposure device (18) comprises at least two exposure units (31), preferably laser arrays. Each exposure unit (31) can be imaged on a pixel in the working plane (7) and can be at least activated and deactivated. The measurement system (40) comprises at least one camera (41) for determining and evaluating the radiation (19) emitted from the exposure device (18) and/or the position and/or orientation of the exposure unit(s) (31), absolutely and/or relative to each other, and at least one distance sensor (42) for detecting an extension in a direction (z) perpendicular to the working plane (7).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/112 - Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B23K 26/02 - Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
A computer-aided method for providing control data for a generative layer construction apparatus has: a first step (S1) of accessing a plurality of layer data records each having a data model of a construction material layer to be selectively strengthened during production, characterized in that, in a second step (S2), an object section comprising at least one part of one or more object cross sections is determined, and the plurality of layer data records are modified in such a manner that values of at least one energy input parameter are allocated to a plurality of points corresponding to the object section in the plurality of layer data records in such a manner that the values change with a change in the distance to an edge section of the object section in a plurality of steps, preferably substantially monotonously, and, in a third step (S3), the plurality of layer data records modified in the second step are provided for the purpose of generating a control data record for the generative layer construction apparatus.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
A method for providing control data for a generative layered construction apparatus involves a number of layer data records being accessed in a first step (S1), wherein a layer data record has a respective data model of a construction material layer to be selectively reinforced during production. In a second step (S2), at at least one starting point (P1), at which reinforcement is intended to take place, in at least one data model, the interval of time (155) between the time (154) at which this starting point (P1) is scanned and the time (154) at which another identified point (N1) in the number of layer data records is scanned is determined. In a third step (S3), the number of layer data records is modified such that the value of an energy input parameter for scanning the at least one starting point (P1) and/or the value of an energy input parameter for scanning the other identified point (N1) is specified on the basis of the magnitude of their interval of time, and in a fourth step (S4), the layer data records modified in the third step are provided as control data for producing the three-dimensional object by means of the generative layered construction apparatus.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
77.
CHANGING CHAMBER FOR A DEVICE AND METHOD FOR THE ADDITIVE MANUFACTURING OF A THREE-DIMENSIONAL OBJECT
The invention relates to a changing chamber (4) for a device for producing a three-dimensional object by selectively solidifying construction material layer by layer at the cross-section of the object to be produced in locations corresponding to the particular layer, the changing chamber comprising a construction space (40) for accommodating a construction platform (41), on which the three-dimensional object (2) can be produced, which construction space is temporarily open toward a top side of the changing chamber, and optionally a reservoir (45) for storing construction material, and the changing chamber comprising a side wall (401) and a cover (400), the cover (400) being suitable for closing the changing chamber (4) at the top side in such a way that construction material (20) is substantially prevented from exiting or entering the changing chamber through the cover, and the cover being connected, in particular pivotably and/or slidably connected, to the side wall.
B29C 64/307 - Handling of material to be used in additive manufacturing
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B65D 83/06 - Containers or packages with special means for dispensing contents for dispensing powdered or granular material
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
78.
CHANGING CHAMBER FOR A DEVICE, AND A METHOD FOR THE GENERATIVE PRODUCTION OF A THREE-DIMENSIONAL OBJECT
The invention relates to a changing chamber (10) for a device (1) for producing a three-dimensional object (2) by selectively solidifying construction material (24) in layers, preferably pulverulent construction material, at the cross-section of the object to be produced in locations corresponding to the respective layer, comprising a container (11, 12) with an upper edge and a lower edge, a wall (14), and a height-adjustable platform (21, 24) which is provided in the container. The wall of the container has a first sealing device (28) on the inner face of the wall, said sealing device adjoining the platform in a sealing position such that the first sealing device and the platform interact in order to close the container towards the lower edge.
B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/307 - Handling of material to be used in additive manufacturing
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
A computer-supported method for providing control data for a generative layer construction device comprises: a first step (S1) of accessing a plurality of layer data records that have data models of a plurality of buildup material layers to be selectively solidified during production, wherein in at least one layer data record a base surface region of an object cross section exists in the associated data model, which is defined in that in at least one of p layers below the base surface region, no solidification of buildup material (15) is specified, wherein p is a predefined natural number; a second step (S2), in which the at least one layer data record is changed such that a temporal sequence for scanning the associated object cross section with energy radiation is specified such that at least one portion of the base surface region is scanned before all other parts of the object cross section to be solidified; and a third step (S3), in which the at least one layer data record changed in the second step is provided for the generation of a control data record for the generative layer construction device.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/386 - Data acquisition or data processing for additive manufacturing
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
A method for providing control data for a generative layer construction device has a first step (S1) of accessing a data record which, at least for a partial region of an object cross section, specifies in which temporal sequence an energy beam bundle is to be moved in scanning lines over the places of this partial region to scan the buildup material. In a second step (S2), the data record is changed such that in at least one of the layers for the respective partial region of an object cross-section, a check is carried out to determine whether the scan time required to scan the buildup material along a scanning line falls below a predefined minimum duration tmin and either a lower energy density of the energy beam bundle during scanning of the buildup material along this scanning line is specified and/or a wait time is specified before the energy beam bundle is moved along a further scanning line, wherein an increasingly lower energy density of the energy beam bundle is specified the more the scan time falls below the predefined minimum duration tmin, and in a third step (S3) the data record changed in the second step is provided to generate a control data record for the generative layer construction device.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
A method for producing a three-dimensional object by selective layered solidification of a powdered material at the points corresponding to the cross section of the object in each layer by means of the action of electromagnetic radiation. The powdered material comprises at least one polymer which can be provided from the melt merely in substantially or completely amorphous or completely amorphous form, or a polymer blend which can be provided from the melt merely in substantially or completely amorphous or completely amorphous form. The powdered material has a specific melt enthalpy of at least 1 J/g.
C08G 73/10 - Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
C08L 79/08 - Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
C08G 77/455 - Block- or graft-polymers containing polysiloxane sequences containing nitrogen-containing sequences containing polyamide, polyesteramide or polyimide sequences
C08G 64/08 - Aromatic polycarbonates not containing aliphatic unsaturation containing atoms other than carbon, hydrogen or oxygen
C08G 64/10 - Aromatic polycarbonates not containing aliphatic unsaturation containing atoms other than carbon, hydrogen or oxygen containing halogens
C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B33Y 70/00 - Materials specially adapted for additive manufacturing
82.
DEVICE AND METHOD FOR THE GENERATIVE PRODUCTION OF A THREE-DIMENSIONAL OBJECT
The invention relates to a control method which is used to actuate at least one solidifying device (20) of a generative production device (1) for producing a three-dimensional object (2) by means of a generative layer construction method, wherein at least one object is produced in layers by repeatedly applying a layer of a construction material (15), preferably a powder, onto a construction field (8) and selectively solidifying the applied layer at locations which correspond to the cross-section of the object to be produced, and a gas with multiple flow directions which are substantially not in alignment flow over the construction field. For at least one layer to be solidified, the method has the steps of receiving and/or ascertaining the distribution of the flow directions of the gas over the construction field, assigning a reference flow direction to a region of the construction field depending on the distribution of the flow directions over the region, and actuating the solidifying device in order to solidify at least one part of the cross-section of the object to be produced depending on a reference flow direction over the construction field region in which the respective part of the cross-section is positioned.
B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
A description is given of a method for supervision of an additive manufacturing process for producing a manufacturing product (2) by selectively solidifying build-up material (13) in a process chamber (3), wherein, for the purpose of solidifying, the build-up material (13) is irradiated in accordance with predefinable irradiation control data (BS). For supervision of the manufacturing process, a process chamber supervisory data set (KDS) is generated on the basis of the irradiation control data (BS), supervisory data (KD) being encoded process chamber point by process chamber point in said data set. Quality data (QD) concerning the manufacturing process are determined on the basis of the process chamber supervisory data set (KDS). Furthermore, a description is given of a supervisory device (31) suitable therefor and a control device (30) for an apparatus (1) for additive manufacturing of manufacturing products (2), and an apparatus (1) for additive manufacturing of manufacturing products (2) comprising such a control device (30).
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
84.
CONTROL DATA FOR MANUFACTURING ONE THREE-DIMENSIONAL OBJECT BY MEANS OF A LAYER-WISE SOLIDIFICATION OF A BUILDING MATERIAL
A method for providing control data for manufacturing at least one three-dimensional object by means of a layer-wise solidification of a building material in an additive manufacturing apparatus is provided. The method includes at least the following steps: a) determining the locations corresponding to the cross section of the at least one object, b) determining at least two different regions to be solidified in said at least one layer, wherein said at least two regions are chosen from the group of: sandwiched region, down-facing region and up-facing region, c) defining a scanning sequence for the beam so as to solidify the building material at least at the locations corresponding to said portion of the cross section of the object, wherein at an interface between a first and a second region differing from each other a scan line of the beam is continuous and at least one beam parameter value is changed.
G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
The invention relates to a computer-aided method for generating a control dataset for a generative layer construction device, wherein, in the latter, an input device (20) is configured to direct a plurality of beams (22) onto different regions of an applied layer. In a first step (S1), access is made to at least two layer data sets which have data models of a corresponding number of structural material layers to be solidified selectively during the production. In a second step (S2), a plurality of partial cross-sections (31, 32, 41, 42) adjoining one another are defined in a layer dataset. The partial cross-sections (31, 32, 41, 42) are defined such that a boundary area (35, 45) differs in the shape and/or position thereof in the layer plane with respect to the shape and/or position of a boundary area (35, 45) in a layer dataset assigned to the immediately preceding or the immediately following layer. In a third step (S3), the layer dataset modified in the second step (S2) is provided as a control dataset for the generative layer construction device.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
The invention relates to a computer-assisted method for generating a control data set for an additive layer manufacturing device, in which method the object is built up layer upon layer and is manufactured by directing a plurality of beams (22) onto different regions of an applied layer. In a first step (S1), a layer data set is accessed, which has a data model of a layer build-up material layer to be solidified selectively during manufacture, wherein points are marked in the data model which correspond to an object cross-section and at which the build-up material (15) should be solidified. In a second step (S2), the layer data set is modified in such a way that for at least a portion of the object cross-section, the number of beams (22) required for solidifying the build-up material (15) inside said portion is determined, preferably automatically, according to quality specifications of the portion and/or a manufacturing time of the object. In a third step (S3), the modified layer data set is provided as a control data set for the additive layer manufacturing device.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/00 - Data acquisition or data processing for additive manufacturing
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
B29C 64/277 - Arrangements for irradiation using multiple radiation means, e.g. micromirrors or multiple light-emitting diodes [LED]
The invention describes a method of heat-treating a titanium alloy part (1) resulting from an additive manufacturing procedure, which method comprises the steps of arranging the titanium alloy part (1) in an oven (2); heating to a first annealing temperature (T1); maintaining the first annealing temperature (T1) for a first annealing duration (D1); heating to a second annealing temperature (T2), wherein the second annealing temperature (T2) exceeds the first annealing temperature (T1); and subsequently cooling the titanium alloy part (1) to room temperature (Troom). The invention further describes a titanium alloy part (1) that has been heat-treated using such a method.
The invention relates to a method for post-treating a three-dimensional object (2) produced by selectively solidifying a powdered construction material (15) in layers and/or for post-treating un-solidified construction material (13) in which the three-dimensional object (2) is embedded, wherein the produced three-dimensional object (2) and/or the un-solidified construction material (13) are treated using a liquid (33). The liquid (33) contains a liquid carrier substance and at least one additional substance which reduces the surface tension of the carrier substance.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
A method of training a detection system is able to acquire volume image data in an additively manufactured object for the detection of process irregularities, and comprises the steps of: a) receiving process irregularity data referring to a selected location within an additively manufactured reference object in which selected location a predefined process irregularity occurred during the additive manufacture of the object, b) acquiring volume image data of a volume of the reference object comprising at least the selected location by said detection system, c) identifying within the volume image data characteristic data which represent a difference between the volume image data of the selected location in comparison with the volume image data of at least one other location of the reference object and/or of a number of other additively manufactured objects in which no process irregularity has occurred and/or no process irregularity is suspected, d) assigning to the predefined process irregularity the characteristic data as a representative of the predefined process irregularity.
The method according to the invention serves for determining a relative powder bed density in a device for producing at least one three-dimensional object by applying and selectively solidifying a powdered buildup material layer by layer. The method comprises at least one first test piece and the steps of a) applying a layer of the powdered buildup material within a building zone by means of a coater moving over the building zone, b) optionally compressing the applied layer of the buildup material, c) selectively solidifying the applied layer at points that correspond to a cross section of the at least one first test piece to be produced, by means of a solidifying device, and d) optionally repeating steps a) to c) until the at least one first test piece is completed. The method also comprises the steps of: determining at least one linear dimension perpendicular to a run of the layer of powdered buildup material and assigned to the at least one first test piece, and comparing the at least one linear dimension determined with at least one corresponding linear dimension of at least one second test piece.
B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
The invention relates to a method for determining a quality indicator of an object produced by means of an additive layer construction method comprising at least the following steps: a step (S1) of providing a first data set (1010), which is associated with a process-monitoring device, wherein in the first data set (1010), for each of a plurality of consecutive layers, process irregularity information determined by the process-monitoring device is associated with a number of solidified points, a step (S2) of determining a relative frequency of the presence of a process irregularity for the plurality of consecutive layers and assigning a quality indicator value (Ri, Si) to the solidified object cross-section in accordance with the determined relative frequency, wherein different value ranges of the relative frequencies are assigned different quality indicator values (Ri, Si), which indicate different quality levels, a step (S3) of generating a second data set (1020), in which a quality indicator value is assigned to the object cross-section in each of the plurality of consecutive layers, and a step (S4) of determining a quality indicator (Q) indicating the quality of the produced object by using the second data set (1020).
G05B 19/401 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing
G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)
92.
POWDER MIXTURE FOR USE IN THE MANUFACTURE OF A THREE-DIMENSIONAL OBJECT BY MEANS OF AN ADDITIVE MANUFACTURING METHOD
Powder mixture for use in the manufacture of a three-dimensional object by means of an additive manufacturing method, wherein the powder mixture comprises a first material and a second material, wherein the first material comprises a steel in powder form, wherein the second material comprises a reinforcement material different from the first material, and wherein the powder mixture is adapted to form a composite object when solidified by means of an electromagnetic and/or particle radiation in the additive manufacturing method.
The invention relates to a method for providing a control command set for producing a processing tool by means of a generative layer construction device, comprising at least the following steps: providing computer-based model data (MD), which represent at least a sub-surface of an object to be processed by means of the processing tool, generating a computer-based model of the processing tool having an interaction surface interacting with the at least one sub-surface as part of a processing process, such that the interaction surface is analogous to the at least one sub-surface of the object to be processed, in the geometric sense, generating a control command set for a generative layer construction device, by means of which the production of the processing tool is implemented on the basis of the computer-based model of the processing tool containing the interaction surface.
The invention relates to a method for producing a three-dimensional object (2) by applying construction material (15) in layers and selectively solidifying same, having the step of applying a layer of the construction material (15) onto a construction base (10, 11, 12) within a construction field (8) and the step of selectively solidifying the applied layer by solidifying a region of the applied layer, said region corresponding to the cross-section of the object (2) in the layer, in order to produce a solidified region in the layer. The application and selective solidification steps are repeated until the three-dimensional object (2) is completed. A sub-region which is only one pre-determined part of the solidified region is post-treated at least once during the production of the three-dimensional object (2). The sub-region lies substantially in the interior of the solidified region.
B29C 67/00 - Shaping techniques not covered by groups , or
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
B33Y 80/00 - Products made by additive manufacturing
The invention relates to a method for providing a control command set for a generative layer construction device, the method comprising the following steps: providing a first data set, in which points corresponding to an object cross section are marked; detecting, whether or not the length of a connection line between edges of an object cross section falls below a defined minimum dimension (m); generating a second data set, which differs from the first data set such that in the event the defined minimum dimension (m) is undercut, a point that is located within an object cross section on a connection line between edges thereof, the length thereof falls below the minimum dimension, is marked as a point not to be solidified, or marked as a point, to which a reduced amount of radiation energy is to be supplied, and/or for a point that is located outside an object cross section on a connection line between edges, the length of which falls below the minimum dimension (m), points of an object cross section adjacent to said point are marked directly above and/or below as points not to be solidified, or as points that are to be supplied with a reduced amount of radiation energy; integrating the second data set into the control command set.
A manufacturing method for the additive manufacturing of a three-dimensional object (2) by layered application and selective solidification of a building material (15), preferably a powder, includes the steps of applying a layer of the building material (15) within a building area (8) by means of a coater (16) moving over the building area (8) in a coating direction (B), selectively solidifying the applied layer of the building material (15) at locations that correspond to a cross section of the object (2) to be manufactured, by means of a solidification device, and repeating the applying and solidification steps until the three-dimensional object (2) is completed. The solidification device and/or a compacting device (50) moves over the building area (8) behind a coating unit (40) of the coater (16) in the coating direction (B). The applied layer of the building material (15) is exposed to a local effect that is confined to a region between the coating unit (40) moving over the building area (8) and the solidification device and/or compacting device (50) moving over the building area (8) behind the coating unit (40). The invention also relates to a computer program, a control device and a manufacturing device for the additive manufacturing of a three-dimensional object (2).
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
97.
DEVICE AND METHOD FOR PRODUCING A THREE-DIMENSIONAL OBJECT
The invention relates to a device (1) for producing a three-dimensional object (2) by solidifying construction material (15) layer by layer at locations in the respective layer, which correspond to the cross-section of the object (2) to be produced, comprising a process chamber (3), in which the object (2) is to be constructed layer by layer by selectively solidifying layers of a construction material (15) in a construction field (8), a gas supply device (100) and a circulating air filter device (32), wherein the device (1) comprises a device for maintaining a pressure constant, which is designed to maintain the pressure in the process chamber (3) substantially constant.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B29C 67/00 - Shaping techniques not covered by groups , or
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
98.
METHOD FOR CALIBRATING A DEVICE FOR PRODUCING A THREE-DIMENSIONAL OBJECT
Method for calibrating a device (1) for producing a three-dimensional object (2) by layered selective compacting of construction material (15) with the step of generating an essentially periodic first modulation pattern (101) in a first part (100) of a construction site (8), the step of generating an essentially periodic second modulation pattern (201) in a second part (200) of the construction site (8), wherein the first modulation pattern (101) and the second modulation pattern (201) in the overlapping zone (300) form an essentially periodic superimposition pattern (301) whose period is greater than the period of the first modulation pattern (101) and the period of the second modulation pattern (201), the step of detecting the superimposition pattern (301), and the step of determining the deviation of the position of the superimposition pattern (301) on the construction site (8) from a reference position.
The invention relates to a calibration strip (31) used to calibrate a production device (1) for producing a three-dimensional object (2) by solidifying a construction material (15) in layers at the locations corresponding to the respective cross-section of the object by selectively irradiating layers of the construction material with a radiation (22) on a working plane (7). The calibration strip has an elongated shape and contains a cover strip (42) which extends along the longitudinal direction of the strip and which has a plurality of cover openings (43) arranged in a row in the longitudinal direction of the calibration strip, said openings being more permeable to the radiation of the irradiation device than the cover strip region surrounding the cover openings. The calibration strip further contains a sensor strip (40) which extends in the longitudinal direction of the strip, which is arranged substantially parallel to the cover strip, and which contains at least one flat sensor (41) that is capable of detecting the radiation of the irradiation device. The calibration strip can be attached to the production device such that the radiation can strike the at least one flat sensor through the cover openings and preferably such that the cover strip (42) lies on the working plane of the production device.
B29C 67/00 - Shaping techniques not covered by groups , or
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
G05B 19/401 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
The invention relates to a powder dispensing unit (30) for equipping and/or retrofitting a device (1) for generatively producing a three-dimensional object (2) by means of selective layer-by-layer solidification of powdered construction material (15), said powder dispensing unit containing a powder container (36) for receiving powdered construction material, and a filling shaft (35) for filling said powder container with powdered construction material. The powder dispensing unit is configured to fluidise the powdered construction material (15b) in the powder container and the powdered construction material (15d) in the filling shaft independently of one another.
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B29C 31/06 - Feeding, e.g. into a mould cavity in measured doses
B05C 19/04 - Apparatus specially adapted for applying particulate materials to surfaces the particulate material being projected, poured or allowed to flow onto the surface of the work
patents
