The invention relates to a method and a device (60) for generating optimized process variable values (PGO) for an additive construction process of a manufacturing product (2, 2', 2''). For this purpose, request data (AD) of the manufacturing product (2, 2', 2'') is provided, and an optimization method is then carried out in order to ascertain the optimized process variable values (PGO) while taking into consideration the request data (AD), wherein at least one optimized scan direction distribution (SSV) for at least one region of the manufacturing product (2, 2', 2'') is ascertained as an optimized process variable value (PGO) using an AI-based optimization unit (NN, NPS, NSV, NNW, KNSP, KNWS). The optimized process variable values (PGO) are then provided. 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 generating an AI-based optimization unit (KNSP, KNWS), to a control method, to a controller (50) for a production device (1) for an additive manufacturing process, and to a corresponding production device (1).
The present application is concerned with aluminium alloys in powder form, which comprise up to 8 wt.-% Ni and up to 4 wt.-% Fe. Corresponding alloys provide for a beneficial combination of high conductivity, moderate strength, good wear resistance and good stability at temperatures of up to 250°C. The powder has a particle size d50 of from 2 to 90 μm, which makes the powder particularly suitable for powder bed based additive manufacturing processes. The present application is further concerned with processes for the production of such aluminium alloy powders, methods for the production of three-dimensional objects using corresponding aluminium alloy powders and three-dimensional objects prepared accordingly, and combinations of devices for the production of such three-dimensional objects and corresponding aluminium alloy powders.
B22F 1/05 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensions; Appareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p.ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
B22F 10/25 - Dépôt direct de particules métalliques, p.ex. dépôt direct de métal [DMD] ou mise en forme par laser [LENS]
B22F 3/24 - Traitement ultérieur des pièces ou objets
B22F 9/04 - Fabrication des poudres métalliques ou de leurs suspensions; Appareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau solide, p.ex. par broyage, meulage ou écrasement à la meule
C22F 1/04 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid de l'aluminium ou de ses alliages
The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a second laser module (202) of a second column (c2) of laser modules is adapted to illuminate a second area (y2) of the object, wherein the first area (y1) is adjacent to the second area (y2) such that continuous illumination of the object is enabled.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B22F 12/00 - Appareils ou dispositifs spécialement adaptés à la fabrication additive; Moyens auxiliaires pour la fabrication additive; Combinaisons d’appareils ou de dispositifs pour la fabrication additive avec d’autres appareils ou dispositifs de traitement ou de fabrication
B23K 26/064 - Mise en forme du faisceau laser, p.ex. à l’aide de masques ou de foyers multiples au moyen d'éléments optiques, p.ex lentilles, miroirs ou prismes
B23K 26/08 - Dispositifs comportant un mouvement relatif entre le faisceau laser et la pièce
B29C 64/20 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet
B29C 64/268 - Agencements pour irradiation par faisceaux d’électrons [FE]
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B29C 64/282 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED] du même type, p.ex. utilisant des niveaux d’énergie différents
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B41J 2/45 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'irradiation sélective d'un matériau d'impression ou de transfert d'impression utilisant des ensembles de sources de rayonnement utilisant des ensembles de diodes émettrices de lumière
B41J 2/455 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'irradiation sélective d'un matériau d'impression ou de transfert d'impression utilisant des ensembles de sources de rayonnement utilisant des ensembles de lasers
The invention concerns a method for the removal of a part (41, 55) of a particle collecting device (40, 41, 42, 55), which part is loaded with at least highly flammable particles (51). The part (41, 55) is removed from a process gas cleaning device (100) of an additive manufacturing device (1) by means of the following steps. An inert gas (50, 250) which substantially encloses the particles (51) is provided. The part (41, 55) of the particle collecting device (40, 41, 42, 55), is removed from the process gas cleaning device (100), wherein the particles (51) remain enclosed in the inert gas (50, 250).
Disclosed is a specific Ni-base superalloy, preferably in powder form, comprising at least 7.00 to 24.00 wt.-% Cr, 5.00 to 20.00 wt.-% Co, 0.00 to 5.00 wt.-% Fe, 0.00 to 10.00 wt.-% W, 0.00 to 3.00 wt.-% Nb, 0.00 to 10.00 wt.-% Mo, 0.00 to 6.00 wt.-% Ti, 0.50 to 6.00 wt.-% Al, 0.00 to 9.00 wt.-% Ta, 0.00 to 0.20 wt.-% C, 0.00 to 0.20 wt.-% Zr, 0.00 to 2.00 wt.-% Hf, 0.00 to 0.50 Si wt.-% and 0.00 to 0.20 wt.-% B, wherein the balance is Ni and unavoidable impurities. Further disclosed are processes for the manufacture of such Ni-base superalloy powders, processes and devices for the manufacture of three-dimensional objects, three-dimensional objects prepared by such processes and devices and the use of such a Ni-base superalloy in powder form for minimizing and/or suppressing microcrack formation in a three-dimensional object and/or for providing improved ductility and rupture life in creep conditions.
B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensions; Appareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p.ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
C22C 1/04 - Fabrication des alliages non ferreux par métallurgie des poudres
C22C 19/05 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel avec du chrome
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.
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
7.
ADDITIVE MANUFACTURING PROCESS USING PULSED LASER RADIATION
An additive manufacturing method comprises: - applying a layer of building material on a support or a layer of building material that has been previously selectively solidified, - selectively solidifying the layer of building material by supplying laser radiation to positions in the layer that are assigned to a cross-section of the object in this layer in that these positions are scanned with a laser beam along a number of trajectories in order to melt the building material along these trajectories, and - repeating the two steps of applying a layer and solidifying said layer until the cross- sections of the object that are to be manufactured by additive manufacturing have all been selectively solidified. The method is characterized in that pulsed laser radiation is used for melting the building material, wherein the laser beam is moved across the layer of building material with a speed exceeding 1000 mm/s.
The invention relates to a method for generating control data (PS) for a device (1) for additively manufacturing a component (2) in a manufacturing process, in which method build-up material (13), preferably comprising a metal powder, is built up in layers in a build-up field (8) by selectively solidifying the build-up material (13) by irradiating the build-up material (13) with at least one energy beam (22), the method comprising the steps of: - recording a process chamber sensor data set (SD) with spatially resolved thermal data of a component layer (B) currently being solidified; - providing a process chamber control data set (KD) with a target shape (F) of the component layer (B) currently being solidified; - determining a number of special regions (S) in the target shape (F); - assigning the number of special regions (S) to corresponding regions in the process chamber sensor data set (SD); - generating a correction factor module (KK), wherein correction factors (KF) are generated in the special regions (S) according to different rules than in other regions of the target shape (F) outside the special regions (S); - correcting control data (PS) for the additive manufacture of a subsequent component layer (B1) based on the correction factor module (KK); - outputting the corrected control data (PS) to a device (1) for additively manufacturing a component (2). The invention also relates to corresponding control data, a method for additive manufacturing, a control data generation device, a control device, and a manufacturing device.
B22F 10/368 - Température ou gradient de température, p.ex. température du bassin de fusion
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 12/90 - Moyens de commande ou de régulation des opérations, p.ex. caméras ou capteurs
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
The invention relates to a method for controlling a manufacturing process for additively manufacturing a component (2) in an apparatus (1), wherein build-up material (13) is solidified on a build-up field (8) in a process chamber (3) by irradiating the build-up material (13) with at least one energy beam (22), and wherein a process gas (G) loaded with impurities (A) is discharged from the process chamber (3) through a gas line (9), filtered, and returned to the process chamber (3), the method comprising the steps: - using a contamination measuring unit (18) to record a number of measured values (M), each measured value (M) permitting a conclusion to be drawn about a degree of contamination, at the time of recording, in the process gas (G) flowing through the gas line (9), - evaluating the number of measured values (M), - depending on the evaluation of the number of measured values (M), controlling the apparatus (1) and/or an output device (39) which is connected to the manufacturing process via a data link. The invention also relates to a corresponding system and to a manufacturing apparatus.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
06 - Métaux communs et minerais; objets en métal
Produits et services
Chemicals for use in industry; Chemicals for use in science; Unprocessed artificial resins; Unprocessed plastics, in particular in form of liquids, granules, powder and/or paste Metals in powder form; Sinter powders of metal or containing metal; Alloys of metal
11.
CALIBRATION SYSTEM FOR AN ENERGY BEAM OF AN ADDITIVE MANUFACTURING DEVICE
The invention relates to a calibration system (100, 100', 100'') for an energy beam (22) of an additive manufacturing device (1). The calibration system comprises an additive manufacturing device (1) with a beam inlet (25) for the energy beam (22), a gas supply (31) for providing a gas that is suitable for calibration, and a measuring unit (35) for detecting a beam property of the energy beam (22). In addition, the calibration system (100, 100', 100'') comprises a calibration aid (40, 60, 80) with a hollow space (54, 74, 94) and an inflow opening (41, 61, 81) for introducing the gas into the hollow space (54, 74, 94). The calibration aid (40, 60, 80) is arranged in the additive manufacturing device (1) and the energy beam (22) is surrounded by the hollow space (54, 74, 94) from the beam inlet (25) to the measuring unit (35). For calibration purposes, the gas flows into the hollow space (54, 74, 94). The invention further relates to a method for calibrating an energy beam (22) and to the use of a calibration aid (40, 60, 80) for calibrating an energy beam (22).
The invention relates to a method for generating irradiation control data (BS) for a device (1) for additive manufacturing of a component (2) in a manufacturing process, in which the component (2) is constructed in layers in a construction field (8) by selectively solidifying the construction material (13) by irradiation of the construction material (13) using at least one energy beam (22), the method comprising the steps of: - providing a component data set (TD) comprising geometry data of at least one component layer of the component (2) and/or comprising a trajectory data set (TD) with scan track segments (B) for producing a component layer of the component (2), - creating a number of standardised target tracks (T2) from the component data set (TD), a standardised target track (T2) being formed from standard track segments (nB), the spatial length of which is an integer multiple of a standard length (N), which is determined from a predefined scan control cycle of the device (1), - generating irradiation control data (BS) in such a way that the device (1) for additive manufacturing can create a component layer with a solidification of construction material (13) on the basis of this irradiation control data (BS) along the number of standardised target tracks (T2), - outputting the irradiation control data (BS) to a memory unit and/or to a device (1) for additive manufacturing of a component (2). The invention furthermore relates to corresponding control data, a method for additive manufacturing, a control data generation device, a control unit and a manufacturing device.
A device for providing a process gas atmosphere during a manufacturing method for a three-dimensional object (2) in a process chamber (3) of an additive manufacturing device comprises a gas circulation system with a gas circuit for a process gas conducted through a process chamber (3), the gas circuit being closed during operation, wherein a filter system (40) having a plurality of filter chambers (41a, 41b, 41c) is disposed in the closed gas circuit, at least three filter chambers are provided, each of which has at least one filter element (43a, 43b, 43c) for filtering particles in the gas circuit, and a gas control device (80) for controlling the gas circuit is provided, the gas control device being designed such that it can separate a number of filter chambers (41a, 41b, 41c) from the gas circuit during the manufacturing method in progress and at the same time can ensure that, at least for part of the time, preferably constantly, the number of filter chambers remaining in the gas circuit exceeds the number of filter chambers separated from the gas circuit.
B01D 46/00 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
B01D 46/10 - Séparateurs de particules utilisant des plaques, des feuilles ou des tampons filtrants à surface plane, p.ex. appareils de précipitation de poussières
B01D 46/24 - Séparateurs de particules utilisant des corps filtrants creux et rigides, p.ex. appareils de précipitation de poussières
B01D 46/56 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative
B01D 46/58 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative montés en parallèle
B01D 46/71 - Régénération de la substance filtrante ou des éléments filtrants à l'intérieur du filtre par action à contre-courant sur la surface filtrante, p.ex. en rinçant du côté du filtre sans gâteau avec du gaz sous pression, p.ex. de l'air pulsé
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/32 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication
The present in invention relates to powder mixtures for use in additive manufacture, which comprise three particle fractions A, B and C with different median particle sizes, wherein the median particle sizes relate to each other as 0.2 to 0.5 / 1 / 1.2 to 2. These powder mixtures have higher apparent density and/or conditioned bulk density compared to conventional additive manufacture powders and thus allow for faster processing with less defects. The present invention further relates to methods for the preparation of respective powder mixtures, methods and devices for the preparation of three-dimensional objects from such powder mixtures and three-dimensional objects, which have been prepared accordingly, as well as the use of the powder mixtures for reducing the amount of defects in additive manufacturing processes.
B22F 1/052 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules caractérisées par un mélange de particules de dimensions différentes ou par la distribution granulométrique des particules
B22F 10/34 - Commande ou régulation des opérations des caractéristiques de la poudre, p.ex. densité, oxydation ou fluidité
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
15.
DYNAMIC ALLOCATION OF OBJECTS TO BE MANUFACTURED TO ADDITIVE MANUFACTURING DEVICES
The invention relates to a computer-assisted method for controlling a plurality of additive manufacturing devices, said method comprising the following steps: receiving a number of first computer-based data models, each of which geometrically describes a first object to be manufactured by means of an additive manufacturing device; receiving state data and/or property parameters of a plurality of additive manufacturing devices, each of which is allocated to at least one second computer-based data model of a second object to be manufactured in the additive manufacturing device; transmitting at least one first computer-based data model to a target manufacturing device, that is selected from the plurality of additive manufacturing devices, in order to manufacture the first object, that is described by the first computer-based data model, by means of the target manufacturing device, wherein the target manufacturing device to which the at least one first computer-based data model is transmitted is selected based on a rule-based automatic decision in which the received state data and/or property parameters are taken into consideration.
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
16.
METHOD AND DEVICE FOR GENERATING CONTROL DATA FOR A DEVICE FOR ADDITIVE MANUFACTURING OF A COMPONENT
The invention relates to a method for generating control data (PS) for a device (1) for additive manufacturing of a component (2) in a manufacturing process, in which method the component (2), in a construction field (8), is constructed in the form of component layers (B) by selective solidification of build-up material (13), preferably comprising a metal-based powder, by irradiating the build-up material (13) with at least one enegry beam (22), the method comprising the steps of: a) obtaining or generating layer information (SI) comprising geometric parameters of component layers and/or information relating to scan vectors of solidification regions (V1, V2, V3, V4) which represent component layers (B) of the component (2); b) selecting or generating a first filling region (F1) for a first solidification region (V1), this filling region (F1) having a filling pattern (FM) of scan vectors (S) parallel to one another with a predefined vector spacing; c) creating a second filling region (F2) having a filling pattern (FM) of scan vectors (S) parallel to one another for a second solidification region (V2) lying on the first solidification region (V1), the scan vectors (S) of the second filling region (F2) being oriented substantially parallel to the scan vectors (S) of the first filling region (F1) and being arranged offset relative thereto; d) generating control data (PS) in such a way that the additive manufacturing device (1) can generate component layers (B) corresponding to the solidification regions (V1, V2, V3, V4) using this control data (PS). The invention further relates to corresponding control data, a method for additive manufacturing, a control data generation device, a control device, and a manufacturing device.
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B28B 1/00 - Fabrication d'objets façonnés à partir du matériau
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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.
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 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/371 - Conditionnement de l’environnement en utilisant un environnement autre que l’air, p.ex. un gaz inerte
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p.ex. du débit ou de la direction
19.
FILTER DEVICE FOR AN ADDITIVE MANUFACTURING DEVICE
Disclosed is a filter system for an additive manufacturing device for purifying a process gas of the additive manufacturing device wherein, in order to purify a volume of process gas during operation, the filter system has at least one permanent filter. The permanent filter is configured so as to be thermally stable in a manner such that during operation, the permanent filter is stable at a temperature of more than 110° C. Further disclosed is an additive manufacturing device as well as an additive manufacturing process.
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 - Poudres métalliques caractérisées par la dimension ou la surface spécifique des particules
B22F 5/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques caractérisée par la forme particulière du produit à réaliser
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 12/00 - Appareils ou dispositifs spécialement adaptés à la fabrication additive; Moyens auxiliaires pour la fabrication additive; Combinaisons d’appareils ou de dispositifs pour la fabrication additive avec d’autres appareils ou dispositifs de traitement ou de fabrication
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 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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.
A mixing device serves for producing a powder mixture of a first powder component and at least one second powder component for an additive manufacturing device. The mixing device includes a first container for receiving the first and/or the second powder component, where a discharge opening for discharging the first and/or the second powder component is provided at a lower boundary of the first container, and a second container for receiving the first and/or the second powder component. The second container is designed to be at least partially open towards an upper side. The first and second container each include at least one fluidization zone for introducing a gas into the first and second container. The mixing device further includes a powder conduit that connects to the discharge opening of the first container and is guided into the second container.
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.
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p.ex. du débit ou de la direction
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B29C 64/295 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet Éléments de chauffage
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
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 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B01D 46/10 - Séparateurs de particules utilisant des plaques, des feuilles ou des tampons filtrants à surface plane, p.ex. appareils de précipitation de poussières
B01D 46/24 - Séparateurs de particules utilisant des corps filtrants creux et rigides, p.ex. appareils de précipitation de poussières
B01D 46/52 - Séparateurs de particules utilisant des filtres comportant un matériau plié, p.ex. appareils de précipitation de poussières
B01D 46/54 - Séparateurs de particules utilisant des feuilles ou diaphragmes filtrants à structure ultra-fine, p.ex. appareils de précipitation de poussières
B01D 46/58 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative montés en parallèle
B01D 46/71 - Régénération de la substance filtrante ou des éléments filtrants à l'intérieur du filtre par action à contre-courant sur la surface filtrante, p.ex. en rinçant du côté du filtre sans gâteau avec du gaz sous pression, p.ex. de l'air pulsé
B01D 39/08 - Tissus filtrants, c. à d. matériau tissé, tricoté ou entrelacé
B01D 39/20 - Autres substances filtrantes autoportantes en substance inorganique, p.ex. papier d'amiante ou substance filtrante métallique faite de fils métalliques non-tissés
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
06 - Métaux communs et minerais; objets en métal
Produits et services
Chemicals for use in industry; Chemicals for use in science; Unprocessed artificial resins; Unprocessed plastics, in particular in form of liquids, granules, powder and/or paste. Metals in powder form; Sinter powders of metal or containing metal; Alloys of metal.
27.
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.
The present invention concerns nickel alloys in powder form comprising at least 40 wt.-% Ni, about 20.0 to 25.0 wt.-% Cr, about 5.0 to 25.0 wt.-% Co and about 1.5 to 5.0 wt.-% Ti, which have a content of B in an amount of less than 40 ppmw. Corresponding alloys have the advantage of providing minimal or no micro-cracks as well as an improved ductility in creep conditions compared to similar alloys having a higher content of B, when the alloys are processed by additive manufacturing to prepare three-dimensional objects. The present invention further concerns processes and devices for the preparation of three-dimensional objects from such nickel alloy powders, processes for the preparation of corresponding nickel alloy powders, three-dimensional objects which are prepared from such nickel alloy powders and the use of such nickel alloy powders to minimize and/or suppress micro-crack formation and/or to provide improved creep ductility.
C22C 19/05 - Alliages à base de nickel ou de cobalt, seuls ou ensemble à base de nickel avec du chrome
C22F 1/10 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du nickel ou du cobalt ou de leurs alliages
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
A passivation device for passivating filter residues of a filter device arranged in a process gas circuit of an additive manufacturing apparatus includes a reaction unit having an inlet suitable for supplying an oxidant, a coupling unit adapted to be coupled to the filter device for introducing filter residues into the reaction unit, a discharge unit suitable for discharging passivated filter residues from the reaction unit, and an energy supply unit suitable for effecting a reaction between the filter residues and the oxidant in the reaction unit.
B22F 1/145 - Traitement chimique, p.ex. passivation ou décarburation
B01D 46/00 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
B01F 27/72 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe horizontal ou incliné avec des hélices ou des sections d'hélices
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
FRIEDRICH-ALEXANDER-UNIVERSITÄT ERLANGEN-NÜRNBERG, KÖRPERSCHAFT DES ÖFFENTLICHEN RECHTS (Allemagne)
Inventeur(s)
Bück, Andreas
Dechet, Maximilian
Fischer, Sybille
Freihart, Karl
Pfister, Andreas
Schmidt, Jochen
Sesseg, Jens
Unger, Laura
Abrégé
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.
A method for determining a distance in an additive manufacturing device includes emitting a number of directed beams using a number of beam sources, detecting at least one of the directed beams from a first beam source using a first detector and generating a signal in dependence on the at least one beam impinging on the least one detector, wherein a recoating element is spatially arranged between the first beam source and the first detector, and determining a distance between a boundary of the recoating element and a surface of a building base and/or an article placed on the building base, based on the signal generated by the detector and using an evaluation unit.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
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.
Disclosed is a method for controlling an energy input device of an additive manufacturing device. A beam bundle deflection center is assigned to each of the number of beam bundles from which this beam bundle is directed onto the build plane. Each beam bundle deflection center is assigned a projection center corresponding to a perpendicular projection of the position of the beam bundle deflection center onto the build plane. The directions of the movement vectors of the number of beam bundles when scanning the trajectories are defined such that at each of the solidification points in this section the movement vector has an angle with respect to a connection vector from this solidification point to the projection center of the beam bundle used, which angle is smaller than a predetermined maximum angle γ1.
Method for moderating a reaction of metal particles, in particular metal condensates, preferably from an additive manufacturing process, in particular a laser sintering or laser melting process, wherein the metal particles are combined, in particular mixed, with an at least partially meltable inerting material, wherein the inerting material comprises particles with a particle size of less than or equal to 100 µm.
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 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/31 - Commande ou régulation des opérations Étalonnage des étapes de procédé ou réglages des appareils, p.ex. avant ou en cours de fabrication
B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
B22F 12/47 - Moyens de rayonnement avec mouvement de translation parallèle au plan de dépôt
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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).
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/80 - Acquisition ou traitement des données
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
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 - Dépoussiérage autrement que par filtres épurateurs
B01D 46/56 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs avec plusieurs éléments filtrants, caractérisés par leur disposition relative
B01D 46/71 - Régénération de la substance filtrante ou des éléments filtrants à l'intérieur du filtre par action à contre-courant sur la surface filtrante, p.ex. en rinçant du côté du filtre sans gâteau avec du gaz sous pression, p.ex. de l'air pulsé
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/32 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication
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 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
B01D 46/71 - Régénération de la substance filtrante ou des éléments filtrants à l'intérieur du filtre par action à contre-courant sur la surface filtrante, p.ex. en rinçant du côté du filtre sans gâteau avec du gaz sous pression, p.ex. de l'air pulsé
B01D 46/80 - Procédés chimiques pour retirer des particules retenues, p.ex. par combustion
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/32 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication
Disclosed is a method for providing control data for manufacturing a three-dimensional object including accessing computer-based model data of at least one portion of the object, at least one data model specifying the scanning of locations of the region to be selectively solidified, using at least one beam along a first trajectory and a second trajectory 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 the distance between a starting point of the second trajectory and an end point of the previously scanned first trajectory is less than half a beam width of the beam at the end point of the first trajectory ;and a providing control data of the at least one data model for the generation of a control data set.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
45.
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 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B33Y 80/00 - Produits obtenus par fabrication additive
46.
Method For Calibrating A Device For Producing A Three-Dimensional Object And Device Configured For Implementing Said Method
A calibration method serves for calibrating a manufacturing device for additively producing a three-dimensional object by applying layer by layer and selectively solidifying a building material. The manufacturing device comprises at least two scanning units, each of which is capable of directing a beam to different target points in the working plane, which are located within a scanning region assigned to the respective scanning unit, wherein the scanning regions region of the at least two scanning units overlap in an overlap area. At least a first of the at least two scanning units is assigned a first monitoring unit whose monitoring region extends to a target point of the first scanning unit and its proximity, wherein a change of a position of the monitoring region is carried out as a function of a change of a position of the target point.
B29C 64/268 - Agencements pour irradiation par faisceaux d’électrons [FE]
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B22F 10/30 - Commande ou régulation des opérations
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
47.
METHOD FOR THE ADDITIVE MANUFACTURE OF COMPONENTS, DEVICE, CONTROL METHOD, AND STORAGE MEDIUM
The present 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) which can be moved above 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.
B22F 12/41 - Moyens de rayonnement caractérisés par le type, p.ex. laser ou faisceau d’électrons
B22F 12/00 - Appareils ou dispositifs spécialement adaptés à la fabrication additive; Moyens auxiliaires pour la fabrication additive; Combinaisons d’appareils ou de dispositifs pour la fabrication additive avec d’autres appareils ou dispositifs de traitement ou de fabrication
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).
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p.ex. du débit ou de la direction
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
Disclosed is a composition including at least one polymer, wherein the polymer is in the form of a powder, and wherein the polymer includes at least one thermoplastic polymer. 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. Also disclosed are a process for the manufacture of a construction element and the construction element thereof.
C09D 171/00 - Compositions de revêtement à base de polyéthers obtenus par des réactions créant une liaison éther dans la chaîne principale; Compositions de revêtement à base de dérivés de tels polymères
C08G 65/40 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir de composés hydroxylés ou de leurs dérivés métalliques dérivés des phénols à partir des phénols et d'autres composés
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
Disclosed are powder mixtures for use in the manufacture of three dimensional objects. In the respective powder mixtures, a first material includes an aluminium alloy or a mixture of elemental precursors thereof, and is in powder form. The second material includes a metal powder of Zr and/or Hf. By the addition of the second material, it is possible to prepare three dimensional objects with high ultimate tensile strength and yield strength by additive manufacturing. Further disclosed are processes for the preparation of corresponding powder mixtures and three dimensional objects, the three dimensional objects themselves, devices for implementing the processes, and uses of the powder mixture.
An additive manufacturing device for manufacturing a three-dimensional object by selective solidification of a building material layer by layer, including a process chamber having a chamber wall, wherein the chamber wall of the process chamber has at least one elongate opening. The device includes a cover device having a cover area for covering and/or shielding the at least one opening, the extent of the cover area being variable in the longitudinal direction of the opening, and the cover device includes a plurality of individual elements of similar type that are connected to one another in such a way that they are movable relative to one another in the longitudinal direction of the opening.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
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 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/307 - Manipulation du matériau destiné à être utilisé en fabrication additive
53.
METAL ALLOYS WITH IMPROVED PROCESSABILITY FOR DIRECT METAL LASER SINTERING
Disclosed are mixtures for use in additive manufacturing, wherein the powder mixture comprises first and second materials. The first material includes a metal alloy or a mixture of elemental precursors thereof, and is in powder form. The second material includes a reinforcement material comprising powder particles having a particle diameter of from 1 to less than 30 μm (as determined by laser scattering or laser diffraction). The inventive powder mixtures allows for the processing to three dimensions objects which are free of cracking and which thus have favourable mechanical characteristics. Further disclosed are processes for the preparation of corresponding powder mixtures and three dimensional objects, three dimensional objects prepared accordingly and devices for implementing processes for the preparation of such objects, as well as the use of a corresponding powder mixture to suppress crack formation in a three-dimensional object, which is prepared by additive manufacturing.
Powder mixture for the use as building material for manufacturing a three-dimensional object by solidifying the building material layer by layer at the positions corresponding to the cross-section of the three-dimensional object in the respective layer, in particular by exposure to 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 reinforcement material, wherein the reinforcement material is at least partially embedded in the powder particles of the first powder and/or adhered to the surface of the powder particles of the first powder, 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, wherein the powder particles of the second powder do not comprise the reinforcement material or comprise it only in an amount of at most 50% by weight relative to the amount of the reinforcement material in or on the powder particles of the first powder.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B33Y 70/10 - Composites de différents types de matériaux, p.ex. mélanges de céramiques et de polymères ou mélanges de métaux et de biomatériaux
A method of manufacturing an object (3) in a build area (22) by means of a successive layer-by-layer solidification of a building material in powder form (18) comprises the steps:
a) applying a layer of the building material in powder form (18) having a predetermined thickness d2 onto a layer of the building material already previously applied which has been solidified in a region corresponding to a cross section of the object (3), wherein, for applying the building material (18), a recoater (5, 15) is moved in a direction (B) across the layer already previously applied, and
b) selectively solidifying the building material (18) applied in step a) in a region corresponding to a cross section of the object (3),
wherein, prior to the application of a layer, for a solidified region having a thickness d1 in the layer applied before, the maximum (MAX) of the product of the extension of this solidified region in movement direction (B) of the recoater (5) and the thickness d1 is determined and
during the application of the layer in step a), at least an additional powder amount (P2) proportional to the value of the maximum (MAX) is additionally provided.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
A support structure for a three-dimensional object is provided, which support structure and three-dimensional object are produced by means of layer-wise applying and selectively solidifying of a building material. The support structure has a reduced resistance to compressional and/or tensional forces applied to the support structure in a first extension direction of the support structure and in said first extension direction the support structure has an alternating shape including a plurality of crests.
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
The invention describes a laser printing system (100) for illuminating an object moving relative to a laser module of the laser printing system (100) in a working plane (180), the laser module comprising at least two laser arrays of semiconductor lasers and at least one optical element, wherein the optical element is adapted to image laser light emitted by the laser arrays, such that laser light of semiconductor lasers of one laser array is imaged to one pixel in the working plane of the laser printing system, and wherein the laser printing system is a 3D printing system for additive manufacturing and wherein two, three, four or a multitude of laser modules (201, 202) are provided, which are arranged in columns (c1, c2) perpendicular to a direction of movement (250) of the object in the working plane (180), and wherein the columns are staggered with respect to each other such that a first laser module (201) of a first column of laser modules (c1) is adapted to illuminate a first area (y1) of the object and a second laser module (202) of a second column (c2) of laser modules is adapted to illuminate a second area (y2) of the object, wherein the first area (y1) is adjacent to the second area (y2) such that continuous illumination of the object is enabled.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B41J 2/45 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'irradiation sélective d'un matériau d'impression ou de transfert d'impression utilisant des ensembles de sources de rayonnement utilisant des ensembles de diodes émettrices de lumière
B29C 64/268 - Agencements pour irradiation par faisceaux d’électrons [FE]
B29C 64/282 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED] du même type, p.ex. utilisant des niveaux d’énergie différents
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B29C 64/20 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet
B22F 12/00 - Appareils ou dispositifs spécialement adaptés à la fabrication additive; Moyens auxiliaires pour la fabrication additive; Combinaisons d’appareils ou de dispositifs pour la fabrication additive avec d’autres appareils ou dispositifs de traitement ou de fabrication
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B23K 26/064 - Mise en forme du faisceau laser, p.ex. à l’aide de masques ou de foyers multiples au moyen d'éléments optiques, p.ex lentilles, miroirs ou prismes
B23K 26/08 - Dispositifs comportant un mouvement relatif entre le faisceau laser et la pièce
B41J 2/455 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'irradiation sélective d'un matériau d'impression ou de transfert d'impression utilisant des ensembles de sources de rayonnement utilisant des ensembles de lasers
H01S 5/42 - Réseaux de lasers à émission de surface
G03G 15/22 - Appareils pour procédés électrographiques utilisant un dessin de charge impliquant la combinaison de plus d'une phase de traitement comprise dans les groupes
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
58.
POWDER DISCHARGE MODULE FOR AN ADDITIVE MANUFACTURING APPARATUS, ADDITIVE MANUFACTURING APPARATUS AND METHOD OF APPLYING A POWDER LAYER
A powder discharge module serves for a recoating device of an additive manufacturing device. A powder discharge module has a powder container for receiving the building material in powder form, and the powder container includes a supply opening for supplying the building material in powder form to the powder container and a discharge section facing the working plane, the discharge section having at least a first discharge device for discharging building material in powder form and at least one fluidization zone for fluidizing the building material in powder form using a gas in the powder container. The powder container further includes a first flow reduction element provided in the powder container.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/255 - Enceintes pour le matériau de construction, p.ex. récipients pour poudre
B29C 64/371 - Conditionnement de l’environnement en utilisant un environnement autre que l’air, p.ex. un gaz inerte
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 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir de composés hydroxylés ou de leurs dérivés métalliques dérivés des phénols à partir des phénols et d'autres composés
The present invention relates to a method for the post-treatment of particles (51) carried along in a process gas (50) of a device (1) for the generative manufacturing of three-dimensional objects, wherein the particles (51) are conducted to a filter chamber (40). An oxidant (60) is added to the particles (50) and that an oxidation reaction of the particles (50) with the oxidant (60) is initiated.
A device for the making of a three-dimensional object by means of layer by layer consolidation of a powderlike construction material by electromagnetic radiation or particle beam has a control unit that controls an irradiation device such that the powder particles of the construction material are bonded together at the sites where the radiation impinges on the construction material. A selective heating device is designed so that any given partial surface of the construction field can be heated before and/or after to a plateau temperature, which is significantly higher than the temperature of at least a portion of the construction field outside the partial surface. The control unit actuates the selective heating device such that the partial surface has a predefined minimum distance from the edge of the construction field.
B29C 64/295 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet Éléments de chauffage
B29C 64/268 - Agencements pour irradiation par faisceaux d’électrons [FE]
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 12/13 - Moyens de chauffage auxiliaires pour préchauffer le matériau
B22F 12/90 - Moyens de commande ou de régulation des opérations, p.ex. caméras ou capteurs
B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
B22F 10/362 - Commande ou régulation des opérations des paramètres du faisceau d’énergie pour le préchauffage
B23K 26/144 - Travail par rayon laser, p.ex. soudage, découpage ou perçage en utilisant un écoulement de fluide, p.ex. un jet de gaz, associé au faisceau laser; Buses à cet effet l'écoulement de fluide contenant des particules, p.ex. de la poudre
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
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 - Usinage de surface ou de courbe, fabrication d'objets en trois dimensions 3D, p.ex. fabrication assistée par ordinateur
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B01J 35/00 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général
B01J 35/10 - Catalyseurs caractérisés par leur forme ou leurs propriétés physiques, en général solides caractérisés par leurs propriétés de surface ou leur porosité
B01J 37/00 - Procédés de préparation des catalyseurs, en général; Procédés d'activation des catalyseurs, en général
B01J 37/34 - Irradiation ou application d'énergie électrique, magnétique ou ondulatoire, p.ex. d'ondes ultrasonores
C04B 41/00 - Post-traitement des mortiers, du béton, de la pierre artificielle ou des céramiques; Traitement de la pierre naturelle
A flow device for an additive manufacturing device (1) for the production of a three-dimensional object (2) by layer-wise selective solidification of a building material in a build area (10) comprises: a process chamber (3), a gas supply device for generating a gas stream 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, 45) for directing the gas stream out of the process chamber (3), and a gas supply line (30), which is provided outside the process chamber (3), in order to conduct gas to the at least one gas inlet (32, 43, 132, 232), the gas supply line (30) comprising at least a first line section (31, 41) which adjoins the gas inlet (32, 43, 132, 232) and which extends a length (L) along a first extension direction of the gas supply line (30), the first extension direction being substantially straight, and wherein the first line section (31, 41) extends a maximum value of a width (B) that extends transverse to the first extension direction and parallel to the build area (10), and wherein the length (L) of the first line section (31, 41) is at least as large as one half of the maximum value of the width (B) and wherein the first line section (31, 41) further comprises a first subsection (51) that is arranged at a distance from the gas inlet (32, 43, 132, 232) and which comprises at least a first flow conditioning unit (50, 150) in addition to a wall of the first line section (31, 41), the first flow conditioning unit being designed to substantially align the gas stream in the first extension direction.
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 manufacturing product (2) in a manufacturing process, in which build-up material (13) is built up and selectively solidified, wherein, for the solidification process, the build-up material (13) is irradiated with at least one energy beam (AL) on a build field (8), and an area of incidence (AF) of the energy beam (AL) on the build field (8) is moved in order to melt the build-up material (13). The control data (PSD) are generated such that the energy beam (AL) has an intensity distribution (GIV), at the area of incidence (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 intensity distribution
has at least one local minimum (MIZ) in a middle 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 intensity profile curve 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).
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 manufacturing product (2) in a manufacturing process, in which build-up material (13) is built up and selectively solidified, wherein, for the solidification process, the build-up material (13) is irradiated with at least one energy beam (AL) on a build field (8), and an area of incidence (AF) of the energy beam (AL) on the build field (8) is moved in order to melt the build-up material (13). The control data (PSD) are generated such that the energy beam (AL) has an intensity distribution (GIV), at the area of incidence (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 intensity distribution
has at least one local minimum (MIZ) in a middle 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 intensity profile curve 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 manufacturing product (2) using this control data (PSD), and a device (1) for the additive manufacture of manufacturing products.
Plastic powder for use as a building material for manufacturing a three-dimensional object by layer-by-layer melting and solidification by hardening of the building material at the positions corresponding to the cross-section of the three-dimensional object in the respective layer by exposure to radiation, preferably by exposure to NIR radiation, wherein the plastic powder comprises a dry blend of polymer-based particles and particles of a NIR absorber, wherein the NIR absorber comprises carbon black or is carbon black and wherein the weight percentage of carbon black in the total weight of polymer 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 a mean primary particle diameter in the range of from 15 nm to 70 nm, preferably of at least 26 nm and/or at most 58 nm.
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
C09D 7/61 - Adjuvants non macromoléculaires inorganiques
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 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
Plastic powder for use as building material for additively manufacturing a three-dimensional object by selectively solidifying the building material at the positions corresponding to the cross-section of the three-dimensional object in the respective layer, in particular by exposure to radiation, wherein the plastic 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 substantially not increased compared to the crystallization point of a mixture of the polymer-based particles without the particulate additive.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
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.
A method and an irradiation device (20), usable to this end, for irradiating a material (13) with at least one energy beam (AL), in particular for locally melting 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 a device (1) for the additive manufacture of manufacturing products (2) are described.
Disclosed is a method for generating an irradiation control data set for creating control data for a device for additive manufacturing of a number of components in a manufacturing process in which at least one layer of a build material is introduced into a process space and the build material of the layer is selectively solidified to form at least one component layer by irradiating at least one section of the layer using a plurality of irradiation resources, wherein layer data are divided into a plurality of work packages, these work packages are put in an order and an irradiation resource is selected taking into account an execution time determined for the irradiation resource to which one of the work packages is assigned taking into account a specified set of evaluation rules, and this is repeated until to a predetermined termination criterion is reached.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/282 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED] du même type, p.ex. utilisant des niveaux d’énergie différents
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
G05B 19/4099 - Usinage de surface ou de courbe, fabrication d'objets en trois dimensions 3D, p.ex. fabrication assistée par ordinateur
G05B 19/408 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par le maniement de données ou le format de données, p.ex. lecture, mise en mémoire tampon ou conversion de données
73.
MANUFACTURING DEVICE AND METHOD FOR ADDITIVE MANUFACTURING WITH MOVABLE GAS OUTLET
Disclosed is a manufacturing device for the additive manufacturing of a three-dimensional object, wherein the object is manufactured by applying a building material layer by layer and selective solidification of the building material, at points in each layer which are assigned in this layer to the cross-section of the object. The points are scanned with at least one exposure area. The movable gas outlet is assigned during operation to a reference process point and/or a target flow supply zone of the movable gas outlet assigned to the reference process point for the flow supply with the process gas and/or the target ventilation zone of the movable gas outlet.
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p.ex. du débit ou de la direction
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 12/41 - Moyens de rayonnement caractérisés par le type, p.ex. laser ou faisceau d’électrons
The invention relates to a computer-assisted method for examining an input data set of a generative layer building device, including comparing at least one parameter value in a computer-based model of an object that is to be produced using the generative layer building device, to a limiting parameter value which is an extreme value for the parameter able to be obtained in a method for producing the object, and particularly an extreme value for the parameter that can be obtained in a process-stable manner.
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]
G06F 30/17 - Conception mécanique paramétrique ou variationnelle
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
75.
ADDITIVE PRODUCTION DEVICE AND ASSOCIATED ADDITIVE PRODUCTION METHOD
An additive manufacturing apparatus for manufacturing a three-dimensional object comprises a layer application device (16) for applying a building material layer by layer, an energy input unit (20) which comprises a carbon monoxide laser (21) and a radiation supply unit for supplying laser radiation of the carbon monoxide laser to positions in each layer that are assigned to the cross-section of the object in this layer, and a laser power modification device (27) adapted to effect an increase of the power per unit area incident on the building material within a time period that is smaller than 300 μs and/or larger than 50 ns, when the laser power is increased and/or to effect a reduction of the power per unit area incident on the building material within a time period that is smaller than 100 μm and/or larger than 100 ns, when the laser power is decreased.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/273 - Agencements pour irradiation par faisceaux d’électrons [FE] à modulation de fréquence
A method for providing control data for a generative layer construction device includes accessing layer data records that have data models of buildup material layers to be selectively solidified, where a base surface region of an object cross section exists in at least one layer data record, where in at least one of p layers below the base surface region, no solidification of buildup material is specified. The method further includes changing the layer data record 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; and a third step, where the changed layer data record is provided for the generation of a control data record for the device.
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/268 - Agencements pour irradiation par faisceaux d’électrons [FE]
B29C 64/371 - Conditionnement de l’environnement en utilisant un environnement autre que l’air, p.ex. un gaz inerte
B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
B22F 12/41 - Moyens de rayonnement caractérisés par le type, p.ex. laser ou faisceau d’électrons
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B28B 1/00 - Fabrication d'objets façonnés à partir du matériau
B28B 17/00 - FAÇONNAGE DE L'ARGILE OU D'AUTRES COMPOSITIONS CÉRAMIQUES; FAÇONNAGE DE SCORIES; FAÇONNAGE DE MÉLANGES CONTENANT DES SUBSTANCES ANALOGUES AU CIMENT, p.ex. DU PLÂTRE - Parties constitutives ou accessoires de l'appareillage à façonner le matériau; Mesures auxiliaires prises en liaison avec un tel façonnage
B22F 12/90 - Moyens de commande ou de régulation des opérations, p.ex. caméras ou capteurs
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p.ex. du débit ou de la direction
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B22F 10/38 - Commande ou régulation des opérations pour obtenir des caractéristiques spécifiques du produit, p.ex. le lissage de la surface, la densité, la porosité ou des structures creuses
B22F 10/80 - Acquisition ou traitement des données
77.
METHOD AND DEVICE FOR DETERMINING A DISTANCE IN AN ADDITIVE MANUFACTURING DEVICE
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 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
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.
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p.ex. du débit ou de la direction
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/277 - Agencements pour irradiation utilisant des moyens de rayonnement multiples, p.ex. des micro-miroirs ou des diodes électroluminescentes multiples [LED]
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
A flow device serves for a device (1) for producing a three-dimensional object (2) by a layer-wise selective solidification of a building material (15) at locations corresponding to the cross-section of the object (2) to be produced in the respective layer by irradiation by means of an energetic radiation (22, 22′), the device comprising a gas conveying device for generating a gas stream (50, 51, 52, 53, 54, 55) and a process chamber (3) with a build area (8) for building the object (2). The process chamber (3) comprises at least a first gas inlet (31, 32) for introducing a gas stream into the process chamber (3), and a first gas outlet (34) and a second gas outlet (33) spaced from the first gas outlet (34) for discharging a gas stream from the process chamber (3). The first gas outlet (34) is arranged closer to the build area (8) than the second gas outlet (33) in a direction perpendicular to the build area (8), and the first gas outlet is provided substantially within a first height range of the process chamber (3) with respect to its extension in a direction perpendicular to the build area (8) and the second gas outlet is provided substantially within a second height range of the process chamber (3) with respect to its extension in a direction perpendicular to the build area (8), wherein the first height range of the process chamber corresponds to a lower third of a distance of the build area (8) from a process chamber ceiling (4a) and the second height range of the process chamber (3) corresponds to the upper four fifths of the distance of the build area (8) from the process chamber ceiling (4a).
B22F 10/322 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication d’un écoulement de gaz, p.ex. du débit ou de la direction
B22F 12/41 - Moyens de rayonnement caractérisés par le type, p.ex. laser ou faisceau d’électrons
A method and device for generating control data for an additive manufacturing device are described, wherein build-up material is built up and selectively solidified. Irradiating the build-up material on a build field with at least one energy beam occurs An impingement surface of the energy beam is moved on the build field in order to melt the build-up material in a target area in and around the impingement surface. For generating the control data, optimization criteria and/or secondary and/or boundary conditions relating to a local target temperature distribution in the target area of the build-up material are defined so that melting of the build-up material is effected as heat conduction welding. Based on this, an optimized intensity profile of the energy beam is determined, which is substantially non-rotationally symmetric at the impingement surface on the build field.
G05B 19/4099 - Usinage de surface ou de courbe, fabrication d'objets en trois dimensions 3D, p.ex. fabrication assistée par ordinateur
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
G05B 19/408 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par le maniement de données ou le format de données, p.ex. lecture, mise en mémoire tampon ou conversion de données
B22F 12/90 - Moyens de commande ou de régulation des opérations, p.ex. caméras ou capteurs
B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
B22F 10/80 - Acquisition ou traitement des données
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B22F 10/368 - Température ou gradient de température, p.ex. température du bassin de fusion
B22F 12/13 - Moyens de chauffage auxiliaires pour préchauffer le matériau
B22F 10/32 - Commande ou régulation des opérations de l’atmosphère, p.ex. de la composition ou de la pression dans une chambre de fabrication
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 - Poudres métalliques; Traitement des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
B22F 1/02 - Traitement particulier des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre, d'améliorer leurs propriétés; Poudres métalliques en soi, p.ex. mélanges de particules de compositions différentes comportant un enrobage des particules
Method for manufacturing a three-dimensional object by layer-wise application and selective solidification of a building material with the step of applying a layer of the building material on a building base within a build area and with the step of selectively solidifying the applied layer by solidifying an area of the applied layer which corresponds to the cross-section of the object in the layer in order to produce a solidified area in the layer. The steps of applying and selectively solidifying are repeated until the three-dimensional object is completed. At least once during manufacturing the three-dimensional object, a sub-area that is only a predetermined portion of the solidified area is after-treated. The sub-area is located substantially inside the solidified area.
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.
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 10/366 - Paramètres de balayage, p.ex. distance d’éclosion ou stratégie de balayage
B22F 10/80 - Acquisition ou traitement des données
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
A device for an adjustment of a heater control includes a nominal parameter provision unit designed such that it provides at least one nominal parameter value, an actual parameter detection unit designed such that it is able to detect for at least one of the nominal parameter values the corresponding actual parameter value in a heater control or in an additive manufacturing device, wherein an actual parameter value is the actual value of a controlled variable and/or the actual value of its change with time and/or the actual value of a heater parameter and/or the actual value of its change with time, and a control change unit that automatically changes at least one control parameter value, if a predefined difference between the nominal parameter value and its corresponding actual parameter value is exceeded.
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/295 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet Éléments de chauffage
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 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir de composés hydroxylés ou de leurs dérivés métalliques dérivés des phénols à partir des phénols et d'autres composés
B29B 13/02 - Conditionnement ou traitement physique de la matière à façonner par chauffage
C08J 5/12 - Fixation d'un matériau macromoléculaire préformé au même matériau ou à un autre matériau compact, tel que du métal, du verre, du cuir, p.ex. en utilisant des adhésifs
C08L 71/00 - Compositions contenant des polyéthers obtenus par des réactions créant une liaison éther dans la chaîne principale; Compositions contenant des dérivés de tels polymères
A measuring system (40) serves for equipping or retrofitting a device (1) for manufacturing a three-dimensional object (2) by selective layerwise solidification of a building material (15). The device (1) includes an irradiator (18) for selectively irradiating a layer of the building material (15) applied in a working plane (7) of the device (1) at locations corresponding to a cross-section of the object (2) to be manufactured for solidifying the irradiated locations. The irradiator (18) comprises at least two irradiation units (31), preferably laser arrays, and each irradiation unit (31) can be projected onto a pixel in the working plane (7) and can be at least switched on and off. The measuring system (40) includes at least one camera (41) for determining and evaluating the radiation (19) emitted by the irradiator (18) and/or the position and/or orientation of the irradiation unit(s) (31) in absolute and/or relative to one another, and at least one distance sensor (42) for detecting an extension in a direction (z) perpendicular to the working plane (7).
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/268 - Agencements pour irradiation par faisceaux d’électrons [FE]
The invention relates to a manufacturing device for the additive manufacturing of a three-dimensional object and a corresponding method. The object is manufactured by applying a building material in layer-wise form and selectively solidifying the building material at points corresponding to the cross-section of the object. The points are scanned with at least one exposure area, and, during operation, a movable gas inlet approaches a reference process point and/or a target flow supply zone assigned to the reference process point for the flow supply with the process gas, and the process gas is discharged via a stationary gas outlet.
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/371 - Conditionnement de l’environnement en utilisant un environnement autre que l’air, p.ex. un gaz inerte
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
88.
METHOD FOR PRODUCING A POWDER COMPRISING AT LEAST ONE POLYMER AND SUCH A TYPE OF POWDER
A method for producing a powder comprising at least one polymer for use in a method for the additive manufacture of a three-dimensional object is described. The method includes the step of mechanically treating the powder in a mixer with at least one rotating mixing blade, wherein the powder is exposed to a temperature TB and TB is at least 30° C. and is below the melting point Tm of the polymer (determined according to DIN EN ISO 11357) if the polymer is a semi-crystalline polymer, or wherein TB is at least 30° C. and wherein TB is at most 50° C. above the glass transition temperature Tg of the polymer (determined according to DIN EN ISO 11357) if the polymer is a melt-amorphous polymer. Compared to a time before the start of the treatment, it may be achieved that after the treatment, the bulk density of the powder is increased by at least 10% (or in the case of polymer, copolymer or polymer blend of polyamide at least 2% and more) and the BET surface area is decreased by at least 10%, and optionally also the pourability is improved by at least 10%.
B29B 7/28 - Mélange; Malaxage discontinu, avec dispositifs mécaniques de mélange ou de malaxage, c. à d. de type travaillant par charges - Eléments constitutifs, détails ou accessoires; Opérations auxiliaires pour mesurer, régler ou réguler, p.ex. réglage de viscosité
B29B 7/18 - Mélange; Malaxage discontinu, avec dispositifs mécaniques de mélange ou de malaxage, c. à d. de type travaillant par charges avec dispositifs de mélange ou de malaxage mobiles rotatifs avec plus d'un arbre
A method for post-treating a three-dimensional object produced by selectively solidifying, layer by layer, of a building material in powder form and/or post-treating unsolidified building material in which the three-dimensional object is embedded. The three-dimensional object and/or the unsolidified building material may be treated with a liquid. The liquid may comprises a liquid carrier substance and at least one further substance that reduces surface tension of the carrier substance.
B29C 71/00 - Post-traitement d'objets sans modification de leur forme; Appareils à cet effet
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B33Y 40/20 - Posttraitement, p.ex. durcissement, revêtement ou polissage
An additive manufacturing method including repeatedly applying a layer of building material on a previously selectively solidified building material layer and scanning the layer at positions corresponding to the cross-section of the object in this layer, where the laser radiation is generated by a laser light source and is directed onto the building material layer via optical components. An optics compartment is encased by an optics compartment housing and accommodates the optical components. A defined gas atmosphere is maintained inside of the optics compartment, wherein the relative humidity of the defined gas atmosphere is kept below 3%.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
A control method serves for controlling at least one solidification device of an additive manufacturing device for manufacturing a three-dimensional object by means of an additive layer build method in which at least one object is manufactured by repeated application of a layer of a building material, to a build area and by selective solidification of the applied layer at positions corresponding to a cross-section of the object to be manufactured, wherein a gas having a plurality of flow directions which essentially are not aligned in the same direction flows across the build area. The method includes receiving and/or determining a distribution of the flow directions of the gas above the build area, assigning a reference flow direction to an area of the build area in dependence on the distribution of the flow directions above the area, controlling the solidification device to solidify at least a part of the cross-section of the object to be produced in dependence on a reference flow direction above the area of the build area in which the respective part of the cross-section is positioned.
B29C 64/371 - Conditionnement de l’environnement en utilisant un environnement autre que l’air, p.ex. un gaz inerte
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
The invention relates to a computer-assisted method for generating a control data set for an additive layer manufacturing device. In a first step, a layer data set is accessed, wherein points are marked in the data model which correspond to an object cross-section and at which the bid-up material should be solidified. In a second step, 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 required for solidifying the build-up material 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, the modified layer data set is provided as a control data set for the additive layer manufacturing device.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
B22F 10/80 - Acquisition ou traitement des données
B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 12/13 - Moyens de chauffage auxiliaires pour préchauffer le matériau
B22F 12/41 - Moyens de rayonnement caractérisés par le type, p.ex. laser ou faisceau d’électrons
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.
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 - Matériaux spécialement adaptés à la fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
C08L 71/00 - Compositions contenant des polyéthers obtenus par des réactions créant une liaison éther dans la chaîne principale; Compositions contenant des dérivés de tels polymères
95.
Method and device of providing a control command set
Disclosed is a method for providing a control command set for an additive manufacturing device. The method includes providing a parameter set consisting of a number of parameters, and a construction rule, which is suitable for describing at least one section of the object by the parameter set geometrically as a number of linear or flat elements in space; 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 the layer, generating a control command set for an additive manufacturing device by which the production of the section of the object is implemented on the basis of the layer model.
G05B 19/4099 - Usinage de surface ou de courbe, fabrication d'objets en trois dimensions 3D, p.ex. fabrication assistée par ordinateur
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B22F 10/00 - Fabrication additive de pièces ou d’objets à partir de poudres métalliques
B22F 10/36 - Commande ou régulation des opérations des paramètres du faisceau d’énergie
B22F 10/85 - Acquisition ou traitement des données pour la commande ou la régulation de procédés de fabrication additive
B22F 10/28 - Fusion sur lit de poudre, p.ex. fusion sélective par laser [FSL] ou fusion par faisceau d’électrons [EBM]
B22F 12/44 - Moyens de rayonnement caractérisés par la configuration des moyens de rayonnement
B22F 10/30 - Commande ou régulation des opérations
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 (51 b), 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.
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/295 - Fabrication additive, c. à d. fabrication d’objets en trois dimensions [3D] par dépôt additif, agglomération additive ou stratification additive, p.ex. par impression en 3D, stéréolithographie ou frittage laser sélectif - Détails ou accessoires à cet effet Éléments de chauffage
G05B 19/4155 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par le déroulement du programme, c.à d. le déroulement d'un programme de pièce ou le déroulement d'une fonction machine, p.ex. choix d'un programme
97.
Calibration method and a detection device for a coating unit of an additive manufacturing device
A calibration method includes positioning the coating unit in a first measuring position and detecting a first position reference value with respect to the reference point and a first measuring point associated with the coating unit at the first measuring position, positioning the coating unit in a second measuring position by moving the coating unit in the direction of movement and detecting a second position reference value with respect to the reference point and a second measuring point associated with the coating unit at the second measuring position, and determining a correction value for the first application element and/or the second application element from the detected first position reference value and the detected second position reference value.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
G05B 19/402 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par des dispositions de commande pour le positionnement, p.ex. centrage d'un outil par rapport à un trou dans la pièce à usiner, moyens de détection additionnels pour corriger la position
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B22F 10/31 - Commande ou régulation des opérations Étalonnage des étapes de procédé ou réglages des appareils, p.ex. avant ou en cours de fabrication
G01B 21/04 - Dispositions pour la mesure ou leurs détails, où la technique de mesure n'est pas couverte par les autres groupes de la présente sous-classe, est non spécifiée ou est non significative pour mesurer la longueur, la largeur ou l'épaisseur en mesurant les coordonnées de points
B22F 3/16 - Compactage et frittage par des opérations successives ou répétées
98.
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 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
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).
Disclosed is a method of providing control data for an additive manufacturing device. The method includes accessing computer-based model data of at least a portion of the object to be manufactured, generating at least one data model of a region of a building material layer to be selectively solidified for manufacturing the at least one object portion. The data model specifies solidification of the building material, and the end point of the at least one solidification path a set of energy introduction parameter values is specified which generates a reference value for the radiation power per unit area in the radiation impact area of the beam bundle on the building material which is lower than the reference value for the radiation power per unit area at other locations of the solidification path, and providing control data corresponding to the generated at least one data model for generating a control data set for the additive manufacturing device.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p.ex. par frittage ou fusion laser sélectif
B29C 64/268 - Agencements pour irradiation par faisceaux d’électrons [FE]
