Process for die casting of metal matrix composite materials from a self-supporting billet
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United States of America Patent
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Feb 2, 1999
Grant Date -
N/A
app pub date -
Apr 1, 1997
filing date -
Apr 1, 1997
priority date (Note) -
Expired
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Abstract
A Billet formed of an aluminum alloy matrix and ceramic particles is heated in an oxygen-containing atmosphere, forming an aluminum oxide surface and softening the matrix alloy. The semi-solid billet then is compressed in a die casting sleeve and the softened matrix material is displaced into a die to form the shape.
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