Abstract

The present invention relates to a method of making a diamond composite wherein a diamond green body is together with an infiltrant is placed onto a graphite crucible and wherein the graphite crucible is placed onto a carbon source such that during infiltration, excess infiltrant is leaked down to the carbon source and excess infiltrant is thus avoided on the diamond composites.

IPC Classes  ?

• C04B 35/52 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbon, e.g. graphite
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for
• B33Y 80/00 - Products made by additive manufacturing
• C04B 35/626 - Preparing or treating the powders individually or as batches
• E21B 10/00 - Drill bits

Abstract

A metal powder for additive manufacturing, comprising, in wt%, Ni 9.0–12.0, Cr 2.0–4.5, Mo 3.5–4.5 and Ti 0.1–1.0; and, if present, Si up to 0.5, Mn up to 0.5, Al up to 0.1, Co up to 0.1, N up to 0.05 and/or C up to 0.07; the balance being Fe and usual impurities. Use of the metal powder for additive manufacturing. A process for producing an object by additive manufacturing, comprising building an object by iteratively melting particles of the metal powder and solidifying the melt, and subsequently aging the built object without any preceding solution annealing thereof.

IPC Classes  ?

• B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
• B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• B33Y 80/00 - Products made by additive manufacturing
• B22F 10/64 - Treatment of workpieces or articles after build-up by thermal means
• B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
• B33Y 10/00 - Processes of additive manufacturing
• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
• C22C 38/52 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
• B22F 10/25 - Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
• C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• C21D 6/00 - Heat treatment of ferrous alloys
• C21D 6/02 - Hardening by precipitation

Abstract

Disclosed is a method for additively manufacturing an article comprising cemented carbide or cermet, wherein the article comprises at least one binder-free region. The method comprises a) depositing (102) a layer of powder composition and b) adding (104) binder to the area corresponding to the cross-section of the article in the powder composition, except for the at least one binder-free region, if present in that layer. The method further comprises repeating steps a) and b) for each layer of the article, thereby obtaining a green article, and sintering (106) the green article, thus obtaining a manufactured article.

IPC Classes  ?

• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B33Y 10/00 - Processes of additive manufacturing
• C22C 1/05 - Mixtures of metal powder with non-metallic powder
• C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
• B33Y 80/00 - Products made by additive manufacturing
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Abstract

Disclosed is a method for additively manufacturing a sintered article from a powder composition comprising granules of cemented carbide or cermet. The method comprises the steps of additively manufacturing (102) a bottom portion by depositing a plurality of layers of powder composition, and adding binder to the entire surface of each layer of the bottom portion. The method further comprises additively manufacturing (104) a middle portion by depositing a plurality of layers of powder composition, and adding binder to only the outer parts of each layer of the middle portion. The method further comprises additively manufacturing (106) a top portion by depositing a plurality of layers of powder composition, and adding binder to the entire surface of each layer of the top portion, thereby producing a printed article, and sintering (108) the printed article, wherein the porosity of the granules in the powder is 0 – 15 wt%.

IPC Classes  ?

• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B33Y 10/00 - Processes of additive manufacturing
• C22C 1/05 - Mixtures of metal powder with non-metallic powder
• C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
• B33Y 80/00 - Products made by additive manufacturing
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Abstract

A powder for additive manufacturing, comprising, in wt.%, C<0.03; Ni 13.0-14.5; Co 12.0-14.0; Mo 7.0-8.0; Ti 0.05-1.00; and, as optionals Al 0-0.1; Cr 0.0-1.0; N 0-200 ppm; Si 0-0.10; Mn 0-0.10, balance Fe and unavoidable impurities.

IPC Classes  ?

• B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
• B23K 26/342 - Build-up welding
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• C22C 33/02 - Making ferrous alloys by powder metallurgy
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
• C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
• C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
• B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
• C22C 38/52 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt

Abstract

The present invention relates to a method of making a ready-to-print cermet or cemented carbide powder comprising sintered granules comprising sintering the granules in a carburizing atmosphere. Due to the carburizing atmosphere, the granules will have less binder phase on the surface and will not sinter together and will be easy to deagglomerate and the granules will maintain its spherical shape. The present invention also relates to a powder made according to said process as well as the use of the powder in a additive manufacturing process.

IPC Classes  ?

• B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
• B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
• C22C 1/05 - Mixtures of metal powder with non-metallic powder
• C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
• C22C 29/10 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on titanium carbide
• B22F 1/065 - Spherical particles
• B22F 1/145 - Chemical treatment, e.g. passivation or decarburisation
• B22F 1/148 - Agglomerating
• C22C 29/00 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides

Abstract

Disclosed is a method for manufacturing an article (100). The method comprises assembling (202) a green body comprising cemented carbide, the green body further comprising at least one recess. The method further comprises inserting (206) an object (120) comprising a material with a melting point above the sintering temperature into the green body, wherein the material exhibits less shrinkage than the cemented carbide when subjected to the sintering conditions. The method further comprises sintering (208) the green body comprising the inserted object (120), thus obtaining a manufactured article (100).

IPC Classes  ?

• B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
• B22F 7/06 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools
• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B24D 18/00 - Manufacture of grinding tools, e.g. wheels, not otherwise provided for
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
• B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder

Abstract

Disclosed is a method for calibrating an additive manufacturing system for manufacturing a hybrid article. The additive manufacturing system comprises at least one measuring device and a build plate, the build plate comprising at least one fixture comprising a base device, and at least one calibration feature, wherein the calibration feature is adapted to have its position determined by the at least one measuring device. The method comprises measuring (202) a position of the at least one calibration feature using the at least one measuring device and determining (204) a relative position between the measuring device the at least one calibration feature. The method further comprises determining (206) the relative position between the measuring device and each corresponding base device, based on the relative position between the measuring device and the calibration feature, and calibrating (208) the additive manufacturing system based on the determined relative positions.

IPC Classes  ?

• B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
• B22F 12/30 - Platforms or substrates
• B22F 12/90 - Means for process control, e.g. cameras or sensors
• B29C 64/182 - Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects in parallel batches
• B29C 64/245 - Platforms or substrates
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

Disclosed is a method for manufacturing an article comprising a groove. The method comprises obtaining (202) a model of an article to be manufactured, the article comprising a groove, the groove comprising two sides with a gap in between. The method further comprises adapting (204) the model by adding a support connecting the sides of the groove, and additively manufacturing (206) the article based on the adapted model. The method further comprises removing (207) loose powder from the groove, sintering (208) the additively manufactured article, and removing (210) the support, thus obtaining a manufactured article.

IPC Classes  ?

• B22F 10/47 - Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
• B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
• B22F 3/10 - Sintering only

Abstract

Disclosed is a method for determining a position of a base device (150) in an additive manufacturing device. The method comprises positioning (202) a position determining device, PDD, on the base device (150), such that the PDD (100) protrudes from the base device (150) after positioning, wherein the PDD (100) comprises an edge (106). The method further comprises determining (204) the position of the PDD (100) based on the edge (106) of the PDD (100), and based on the position of the PDD (100), determining (206) the position of the base device (150).

IPC Classes  ?

• B22F 7/08 - Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
• B22F 10/31 - Calibration of process steps or apparatus settings, e.g. before or during manufacturing
• G01B 21/04 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
• G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
• B25B 11/00 - Work holders or positioners not covered by groups , e.g. magnetic work holders, vacuum work holders

Abstract

Disclosed is a method for controlling an additive manufacturing device. The method comprises depositing (202) a layer of loose powder composition and adding (204) binder to a part of the layer of loose powder composition. The method further comprises heating (206) the powder composition and obtaining (208) temperature information of the layer of powder composition. The method further comprises analyzing (210) the temperature information in order to obtain at least one of a first lower temperature and a second higher temperature, and controlling (212) a temperature in the additive manufacturing device based on the at least one temperature.

IPC Classes  ?

• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B22F 10/368 - Temperature or temperature gradient, e.g. temperature of the melt pool
• B22F 12/90 - Means for process control, e.g. cameras or sensors
• B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing

Abstract

A steel powder, comprising, in wt.%, C 0.05-2.0, Mn 14.0-30.0, Al 5.0-10.0, Cr 3.0-10.0, Si 0.1-2.0, Ti 0.05-0.5, and, as optionals, Ni 0.0-0.2, N 0.0-1.0, O 0.0-0.50, and balance Fe and unavoidable impurities.

IPC Classes  ?

• B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 9/08 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
• C22C 33/02 - Making ferrous alloys by powder metallurgy
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
• C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
• C22C 38/36 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.7% by weight of carbon
• C22C 38/38 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
• B22F 1/052 - Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
• B22F 3/15 - Hot isostatic pressing
• B22F 3/22 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor for producing castings from a slip
• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• B22F 10/34 - Process control of powder characteristics, e.g. density, oxidation or flowability
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing

Abstract

Disclosed is a method for manufacturing an article (230) requiring support (235) on top of a base device (220) using an additive manufacturing process in an additive manufacturing device, wherein the additive manufacturing device comprises a build plate (200). The build plate (200) comprises a receptacle (210) for receiving the base device (220) and an insert (240), provided in proximity to each base device, the insert being adapted for having a support (250) for the article manufactured thereon. The method comprises the step of manufacturing (302) the article on top of the base device, and manufacturing (306) the support (250) for the article (230) on top of the insert (240).

IPC Classes  ?

• B22F 10/20 - Direct sintering or melting
• B22F 10/40 - Structures for supporting workpieces or articles during manufacture and removed afterwards
• B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
• B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
• B29C 64/245 - Platforms or substrates
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
• B33Y 80/00 - Products made by additive manufacturing
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber

Abstract

Disclosed is a method for manufacturing an article (230) on top of a base device (220) with an additive manufacturing device using an additive manufacturing process, wherein the additive manufacturing device comprises a build plate (200). The method comprises positioning (302) the base device (220) on the build plate (200) and providing (304) a cover layer (240) on the build plate (200), wherein the cover layer (240) comprises a recess for the base device (220). The method further comprises manufacturing (306) the article on top of the base device (220).

IPC Classes  ?

• B22F 10/20 - Direct sintering or melting
• B22F 10/40 - Structures for supporting workpieces or articles during manufacture and removed afterwards
• B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
• B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
• B29C 64/245 - Platforms or substrates
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor

Abstract

A method of controlling a binder jet printer, wherein the binder jet printer comprises a build box with a powder bed, and a powder supply for supplying the powder bed with powder. The binder jet printer further comprises a leveling device configured to level the powder supplied to the build box from the powder supply, a print head for dispensing binder to the powder bed such that a green body is formed by the dispensed binder and the powder in the powder bed. The method comprises: supplying powder to the powder bed from the powder supply and leveling the powder with the leveling device; dispensing binder by means of the print head to the powder bed to form a layer of said green body, wherein the layer comprises at least one shape, which at least one shape comprises binder and powder and is delimited by at least one edge, wherein the at least one shape has a saturation of dispensed binder in an area closer to any one edge that is higher than the saturation of dispensed binder in an area further away from any one edge of the at least one shape.

IPC Classes  ?

• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B22F 12/53 - Nozzles
• B22F 12/55 - Two or more means for feeding material
• B22F 12/57 - Metering means

Abstract

A powder for additive manufacturing, comprising, in wt.%, C<0.03; Ni 13.0-15.0; Co 13.0-14.0; Mo 7.0-8.0; Ti 0.5-0.6; and, as optionals Al 0-0.1; Cr 0.0-1.0; N 0-200 ppm; Si 0-0.10; Mn 0-0.10, balance Fe and unavoidable impurities.

IPC Classes  ?

• B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• C22C 33/02 - Making ferrous alloys by powder metallurgy
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
• C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium
• C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
• B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
• B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
• B23K 26/342 - Build-up welding
• B23K 26/082 - Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
• B23K 15/00 - Electron-beam welding or cutting
• B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
• C22C 38/52 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt

Abstract

The invention relates to the use of a water-soluble thermoset binder for binder jetting of a cemented carbide or cermet green body. The water-soluble thermoset binder comprises a compound A being at least one organic, non-aromatic substance, comprising at least two hydroxyl groups and a compound B being at least one organic, non-aromatic substance, comprising at least two carboxyl groups, wherein the compound A and compound B are monomers or oligomers. The binder will lead to an increased strength of the printed green body.

IPC Classes  ?

• B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
• C22C 1/05 - Mixtures of metal powder with non-metallic powder
• C22C 29/02 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides
• C22C 29/06 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
• B22F 10/14 - Formation of a green body by jetting of binder onto a bed of metal powder
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 70/00 - Materials specially adapted for additive manufacturing

Abstract

Disclosed is a method for optimizing manufacturing data in a subtractive manufacturing system. The method comprises obtaining (202) a model of and tolerance requirements for an object to be manufactured and performing measurements (204) on the manufacturing system in a static condition. The method further comprises simulating (206) a manufacturing process in the subtractive manufacturing system using the obtained static information, in order to obtain runtime information. The method further comprises determining (208) which manufacturing data is responsible for producing each feature of the object in a manufactured object, and simulating (210) manufacturing of the object. The method further comprises comparing (212) the simulated finished product of the object with the three-dimensional model of the object, detecting (214) a deviation between the simulated finished product and the obtained tolerance requirements comprised in the model of the object, and based on the detected deviation and the determination of which manufacturing data is responsible for producing each feature, optimizing (216) the manufacturing data such that an object manufactured based on the optimized manufacturing data complies with the obtained tolerance requirements.

IPC Classes  ?

• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control (DNC), flexible manufacturing systems (FMS), integrated manufacturing systems (IMS), computer integrated manufacturing (CIM)

Abstract

The present invention relates to a leveling assembly (100) for an additive manufacturing apparatus, wherein the leveling assembly comprises: a leveling device (101,201) for leveling a powder bed (103) of a build chamber (104) of the additive manufacturing apparatus; a frame (105) operatively connected to said leveling device and configured to traverse the powder bed with the leveling device, wherein the frame comprises: a drive (106) configured to move the frame (105) and the leveling device (101) over the powder bed (103); and wherein the frame is characterized by comprising: a force sensor (107) configured to sense a force acting on the leveling device, said force depending on the force with which the leveling device acts on the powder bed.

IPC Classes  ?

• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/205 - Means for applying layers
• B29C 64/386 - Data acquisition or data processing for additive manufacturing
• B29C 64/393 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
• B33Y 50/00 - Data acquisition or data processing for additive manufacturing
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
• B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• B22F 12/63 - Rollers
• B22F 10/85 - Data acquisition or data processing for controlling or regulating additive manufacturing processes
• B22F 12/60 - Planarisation devices; Compression devices
• B22F 12/67 - Blades
• B22F 12/90 - Means for process control, e.g. cameras or sensors

Abstract

The present disclosure relates to a method for producing a metal cutting tool component, comprising the steps of producing a front module (70), the front module (70) comprising a main body (57) and a front module interface (63) at a rear end. This step comprises the steps of providing an intermediate element (58), comprising providing the front module interface (63) at a rear end and a build surface (52) at a front end thereof, and building, using an additive manufacturing process, the main body (57) on the build surface (52) of the intermediate element (58). The method further comprises the steps providing a rear module (68) comprising providing a coupling part (66) at a rear end and a rear module interface (65) at a front end, after producing the front module and providing the rear module (68), mounting the front module (70) on the rear module (68) by immovably connecting the front module interface (63) and the rear module interface (65), after the front module (70) has been mounted on the rear module (68), machining at least one surface of the main body (57), and heat treating the intermediate element (58) with the built main body (57), wherein at least the main body (57) is hardened. The present disclosure also relates to a metal cutting tool component.

IPC Classes  ?

• B23P 15/30 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools lathes or like tools
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• B23B 29/04 - Tool holders for a single cutting tool
• B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder

Abstract

The present invention relates to a powder dispensing apparatus for an additive manufacturing system, comprising a container (1), which comprises an upper opening (3) for introducing powder; a bottom in form of an elongated roller (5), wherein the roller (5) is rotatable around a central rotation axis (6) that extends in a longitudinal direction, and wherein the roller (5), in a main section (7) thereof, has an outer surface comprising a single or several cavities (8, 26) distributed therein for receiving and holding powder; and a first and a second side wall (13, 14) extending upwards from the roller (5) along the main section. The apparatus further comprises an elongated scraping device (16) extending in the longitudinal direction beside the roller (5) and below a lower edge of the first side wall (13), wherein the scraping device (16) is arranged to contact the outer surface of the roller (5) along the main section and, when the roller (5) is rotated, to slide into and out of the single or several cavities (8, 26) and thereby scrape the inside of the single or several cavities (8, 26) and remove any powder therefrom.

IPC Classes  ?

• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/205 - Means for applying layers
• B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• B65D 88/26 - Hoppers, i.e. containers having funnel-shaped discharge sections
• B65D 88/68 - Large containers characterised by means facilitating filling or emptying preventing bridge formation using rotating devices
• B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
• B29C 64/343 - Metering

Abstract

A binder jet printer (100) for additive manufacturing, comprising: a build chamber (101); a powder supply source (106) configured to provide powder to a build chamber; a leveling assembly (104) for leveling a powder bed in a build chamber, thereby forming a powder bed in a build chamber in which a green body is formed; a print head (107) configured for depositing binder on a leveled powder bed in a build chamber; a radiant (105) configured to irradiate a powder bed in a build chamber; a control unit (108) configured to: control the powder supply source to provide powder to a build chamber; control the leveling assembly to level the powder bed in the build chamber; control the print head to deposit binder on the leveled powder bed in the build chamber; wait a predetermined time for the deposited binder to soak the powder bed in the build chamber; control the radiant to irradiate the soaked powder bed in the build chamber. The binder jet printer further comprises at least one further build chamber (102,103), and in that the control unit further is configured to: control the powder supply source to provide powder to the at least one further build chamber; control the leveling assembly to level the powder bed in the at least one further build chamber; control the print head to deposit binder on the leveled powder bed in the at least one further build chamber; wait a predetermined time for the deposited binder to soak the powder bed in the at least one further build chamber; control the radiant to irradiate the soaked powder bed in the further build chamber;control at least two of the powder source, leveling assembly, print head, and the radiant to simultaneously serve the build chamber and the at least one further build chamber.

IPC Classes  ?

• B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
• B22F 3/10 - Sintering only
• B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
• B29C 64/182 - Processes of additive manufacturing specially adapted for manufacturing multiple 3D objects in parallel batches
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The present invention relates to a method of making a 3D printed cermet or cemented carbide body comprising a hard phase and a metallic binder phase where the 3D printed green body is subjected to a sintering process comprising a holding step prior to a liquid phase sintering step. The sintered bodies have a reduced porosity.

IPC Classes  ?

• B22F 1/00 - Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
• B22F 3/10 - Sintering only
• B22F 3/15 - Hot isostatic pressing
• B22F 9/02 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes
• B22F 9/04 - Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor using physical processes starting from solid material, e.g. by crushing, grinding or milling
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 70/00 - Materials specially adapted for additive manufacturing
• C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Abstract

A method (500) and a corresponding system (180) and computer program are provided. A model (150) of an object (400) to be manufactured via subtractive manufacturing is obtained (501). A plurality of geometric features (401, 402) to be machined as part of manufacturing the object is identified (502) based on the model. Strategies for machining the respective geometric features via subtractive manufacturing are selected (503). Instructions for causing one or more machine tools (110) to manufacture the object in accordance with the selected strategies is provided (504). Selecting strategies for machining the respective geometric features via subtractive manufacturing comprises selecting (505) a subset of the plurality of geometric features, and selecting (506) the same strategy for machining all of the geometric features (402) in the subset. The strategy for machining all of the geometric features in the subset is selected jointly for all of the geometric features in the subset.

IPC Classes  ?

• G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
• G05B 19/4097 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
• G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing

Abstract

The present invention relates to a method comprising receiving (210) user input indicative of prioritized aspects of manufacturing of an object, the prioritized aspects comprising tool life or surface quality or object manufacturing speed; obtaining (220) a model of an object to be manufactured via subtractive manufacturing; identifying (230), based on the model, a geometric feature to be machined as part of manufacturing the object; obtaining (240) a plurality of strategies for machining the geometric feature (310, 320, 330), by accessing a database, the plurality of strategies defining alternative ways of machining the geometric feature; selecting (250) at least one strategy from said plurality of strategies by ranking the plurality of strategies using the prioritized aspects of manufacturing and selecting at least one strategy having the highest ranking, providing, (260) based on the at least one selected strategy, instructions for causing the one or more machine tools (110) to manufacture the object via subtractive manufacturing.

IPC Classes  ?

• G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
• G05B 19/4097 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
• G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing

Abstract

A method (400) and a corresponding system (180) and computer program are provided. A model (150) of an object to be manufactured via subtractive manufacturing is obtained (401). A plurality of geometric features to be machined as part of manufacturing the object is identified (402) based on the model. Strategies for machining the respective geometric features via subtractive manufacturing are selected (403). After selecting strategies for all of the plurality of geometric features, one or more tool paths for manufacturing the object in accordance with the selected strategies are generated (404). In traditional CAM programming or CNC programming, sequential dependence makes it difficult to go back and undo a decision made earlier during the programming, without having to undo several other decisions as well. This sequential dependence may be avoided by postponing generation of tool paths until after selecting strategies for all of the geometric features to be machined.

IPC Classes  ?

• G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
• G05B 19/4097 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
• G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing

Abstract

A method (600) and a corresponding system (180) and computer program are provided. A model (150) of an object (400) to be manufactured via subtractive manufacturing is obtained (601). Geometric features (403, 404, 405) to be machined as part of manufacturing the object are identified (602) based on the model. The identified geometric features include a composite geometric feature (405) including a plurality of geometric subfeatures (401, 402). A database (170) including strategies for machining different geometric features is accessed (603). The database includes a composite strategy for machining the composite geometric feature and separate strategies for machining the respective geometric subfeatures. Strategies for machining the respective geometric features are selected (604) from the strategies included in the database. Instructions for causing one or more machine tools (110) to manufacture the object in accordance with the selected strategies are provided (605). Selecting strategies for machining the respective geometric features via subtractive manufacturing comprises selecting the composite strategy for machining the composite geometric feature.

IPC Classes  ?

• G05B 19/4093 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by part programming, e.g. entry of geometrical information as taken from a technical drawing, combining this with machining and material information to obtain control information, named part programme, for the NC machine
• G05B 19/4097 - Numerical control (NC), i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
• G05B 19/4099 - Surface or curve machining, making 3D objects, e.g. desktop manufacturing

Abstract

The present invention relates to a method for producing an object (108) of metal wherein the object (108) is built with an additive manufacturing process on a base device (101) having a build surface (104) at one end, said base device (101) being part of a base device system (100) comprising at least one base device (101) and a supporting means (102) holding the base device (101) in a fixed position during the additive manufacturing process, wherein the method comprises the steps of: building the object (108) on at least a part of the base device build surface (104) with the additive manufacturing process, removing the base device (101) from the supporting means (102), connecting the base device (101) to a CNC machine provided with at least one machining tool and, separating the built object (108) from the base device (101) by means of a machining tool in the CNC machine.

IPC Classes  ?

• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• B22F 3/24 - After-treatment of workpieces or articles