DEVICE AND METHOD FOR PRODUCING A THREE-DIMENSIONAL WORKPIECE

The invention relates to a device (10) for producing a three-dimensional workpiece by carrying out an additive layering process, wherein the device (10) comprises: - a build area (17) that is configured to receive a raw material powder layer; - a powder application device (14) that is configured to...

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Bibliographische Detailangaben
Hauptverfasser:	KROL, Toni Adam, SCHÖNEBORN, Henner, SCHWARZE, Dieter Josef, HÜBINGER, Karsten
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADDITIVE MANUFACTURING TECHNOLOGY ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a device (10) for producing a three-dimensional workpiece by carrying out an additive layering process, wherein the device (10) comprises: - a build area (17) that is configured to receive a raw material powder layer; - a powder application device (14) that is configured to deploy the raw material powder layer onto the build area (17); - an irradiation system (20) that is configured to selectively irradiate the raw material powder layer on the build area (17); wherein the device (10) is configured to provide at least one gas flow (48) that is directed along an axis (A) extending from a first edge region (44) of the build area (17) towards a second edge region (46) of the build area (17); and wherein the device (10) comprises at least one gas flow guide element (36) that is configured to divert at least a part of the gas flow (48) away from the build area (17) before said gas flow (48) reaches the second edge region (46); wherein the gas flow guide element (36) comprises a gas supply portion (56) that is configured to supply a fresh gas flow (54) along the build area (17). The invention also concerns a method for producing a three-dimensional workpiece.