Microporous metal parts
AssigneeSouthco, Inc.
InventorRatnesh K. Dwivedi
Life of this patent
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Abstract
A metal injection-molding feedstock is heated and plasticized. Supercritical carbon dioxide is injected into the feedstock to form micropores when the pressure is reduced and a parts mold is filled. The micropores are retained when the green parts are debindered and sintered.
Claims22
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A microporous metal part formed from sintered metal powder and having closed interior pores with a diameter less than 1000 microns and a dense surface skin.
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Dependencies are inferred from the claim text.