METHODS FOR HARDENING SELECT PORTIONS OF METAL ARTICLES, ADDITIVE MANUFACTURING SYSTEMS ASSOCIATED THEREWITH, AND METAL ARTICLES

A method for hardening select portions of a metal article includes establishing a nonreactive atmosphere within a build chamber of an additive manufacturing system, melting a metal material using an energy source to deposit molten material in layers to build the metal article and establishing a reac...

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Bibliographische Detailangaben
Hauptverfasser:	Holder, Scott M, Venezia, Jonathan, Weires, Dale J, Kinmonth, Richard K
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 ALLOYS CASTING CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS POWDER METALLURGY SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WELDING WORKING BY LASER BEAM WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A method for hardening select portions of a metal article includes establishing a nonreactive atmosphere within a build chamber of an additive manufacturing system, melting a metal material using an energy source to deposit molten material in layers to build the metal article and establishing a reactive atmosphere within the build chamber that causes a chemical reaction to harden a portion of multiple select layers. An additive manufacturing system for hardening select portions of a metal article includes a build chamber, a material handling assembly, a substrate, an energy source assembly, a translational assembly and a system control assembly. A metal article includes layers of a metal material deposited via an additive manufacturing process. A portion of select layers being hardened via a chemical reaction caused by a reactive atmosphere established during periods of the additive manufacturing process.