METAL ADDITIVE MANUFACTURING USING GAS MIXTURE INCLUDING OXYGEN

A metal powder additive manufacturing system (100) and method are disclosed that use increased trace amounts of oxygen to improve physical attributes of an object. The system (100) may include: a processing chamber (130); a metal powder bed (132) within the processing chamber (130); a melting elemen...

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Bibliographische Detailangaben
Hauptverfasser:	CREAR, Donnell Eugene, SWANNER JR., Archie Lee, DULKIEWICZ, Chad Joseph
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 CASTING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A metal powder additive manufacturing system (100) and method are disclosed that use increased trace amounts of oxygen to improve physical attributes of an object. The system (100) may include: a processing chamber (130); a metal powder bed (132) within the processing chamber (130); a melting element (134) configured to sequentially melt layers of metal powder on the metal powder bed (132) to generate an object (102); and a control system (104) configured to control a flow of a gas mixture (160) within the processing chamber (130) from a source of inert gas (154) and a source of an oxygen containing material (162), the gas mixture (160) including the inert gas (154) and oxygen from the oxygen containing material (162).