Manufacturing method of sinter forged aluminum parts with high strength
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United States of America Patent
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Jan 26, 2010
Grant Date -
Apr 14, 2005
app pub date -
Oct 1, 2004
filing date -
Oct 2, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a manufacturing method of sinter forged aluminum-based parts with high strength. In the manufacturing method, prepared is a raw material powder comprising, by mass: 3.0 to 10% zinc; 0.5 to 5.0% magnesium; 0.5 to 5.0% copper; inevitable amount of impurities; and the balance aluminum. The raw material powder is formed into a compact by pressing the raw material powder, sintered in a non-oxidizing atmosphere in such a manner as to heat the compact at a sintering temperature of 590 to 610 degrees C. for 10 minutes or more, before cooling the sintered compact. It is then forged by pressing the sintered compact in a pressing direction to compress the sintered compact in the pressing direction and produce plastic flow of material in a direction crossing to the pressing direction.
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