Consolidation of powder aluminum and aluminum alloys

Details Consolidation of powder aluminum and aluminum alloys Consolidation of powder aluminum and aluminum alloys

B - Operations, Transporting

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B22F 3/16 (2006.01) B22F 3/15 (2006.01) C22C 1/04 (2006.01) C22C 21/00 (2006.01)

Patent

CA 2011937

CONSOLIDATION OF POWDER ALUMINUM AND ALUMINUM ALLOYS ABSTRACT OF THE DISCLOSURE A method of consolidating metal powers selected from the group consisting essentially of aluminum, aluminum alloys, and aluminum metal matrix composites includes: pressing the powder into a [reform, and preheating the preform to elevated temperatures; providing a bed of flowable pressure transmitting particles; positioning the preform in such relation to the bed that the particles encompass the preform; and pressurizing the bed to compress the particles and cause pressure transmission via the particles to the preform, thereby to consolidate the body into desired shape Typically, the metal powder has surface oxide, and such pressurizing is carried out to break up, partially or fully, the surface oxide. - 1 -

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