ADDITIVE MANUFACTURING SYSTEM WITH GAS FLOW HEAD

An additive manufacturing system is disclosed and comprises: a build surface; one or more laser energy sources, and an optics assembly movable relative to the build surface. The optics assembly is configured to direct laser energy from the one or more laser energy sources toward the build surface so...

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Bibliographische Detailangaben
1. Verfasser:	SWEETLAND, Matthew
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 CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS POWDER METALLURGY SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM WORKING METALLIC POWDER WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An additive manufacturing system is disclosed and comprises: a build surface; one or more laser energy sources, and an optics assembly movable relative to the build surface. The optics assembly is configured to direct laser energy from the one or more laser energy sources toward the build surface so that exposure of a layer of material on the build surface to the laser energy melts at least a portion of the layer of material at a melt pool region. The additive manufacturing system also comprises a gas flow head comprising: a gas inflow through which a supply gas flows into the gas flow head, a gas outflow through which a return gas flows out of the gas flow head, and an aperture arranged to permit transmission of the laser energy through the gas flow head to the melt pool region on the build surface. The gas inflow and the gas outflow are configured to create a local gas flow across the melt pool region.