HIGH DENSITY ALUMINUM PARTS FROM ADDITIVE MANUFACTURING

HIGH DENSITY ALUMINUM PARTS FROM ADDITIVE MANUFACTURING

A process for producing a high density aluminum alloy part from a green part like those produced by binder jet additive manufacturing is described. The process utilizes a build powder that includes a densification aid mixed with the aluminum alloy powder and gets incorporated into the green part dur...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DOUGHERTY, Patrick, WILHELMY, Deborah M, MYERS, Kyle
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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 process for producing a high density aluminum alloy part from a green part like those produced by binder jet additive manufacturing is described. The process utilizes a build powder that includes a densification aid mixed with the aluminum alloy powder and gets incorporated into the green part during the printing process. In some cases, a continuous high flow of nitrogen gas and controlled heating of the green part and provides a high density aluminum alloy part exhibiting densities of 95% or greater.