SUPPORTS FOR SINTERING ADDITIVELY MANUFACTURED PARTS

To reduce distortion in an additively manufactured part (14), a shrinking platform (RA1) is formed from a metal particulate filler in a debindable matrix. Shrinking supports (SS1) of the same material are formed above the shrinking platform, and a desired part of the same material is formed upon the...

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Bibliographische Detailangaben
1. Verfasser:	MARK, Gregory Thomas
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 GRANULES OR PREFORMS MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS POWDER METALLURGY PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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:	To reduce distortion in an additively manufactured part (14), a shrinking platform (RA1) is formed from a metal particulate filler in a debindable matrix. Shrinking supports (SS1) of the same material are formed above the shrinking platform, and a desired part of the same material is formed upon them. A sliding release layer (SL1) is provided below the shrinking platform of equal or larger surface area than a bottom of the shrinking platform to lateral resistance between the shrinking platform and an underlying surface. The matrix is debound sufficient to form a shape-retaining brown part assembly including the shrinking platform, shrinking supports, and the desired part. The shape-retaining brown part assembly is heated to shrink all of the components together at a same rate via atomic diffusion.