Powder metallurgy apparatus and process using electrostatic die wall lubrication
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United States of America Patent
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Oct 28, 1997
Grant Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Aug 24, 1994
priority date (Note) -
Expired
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Abstract
A method of making a metal composite part by compacting a metal powder composition in a die whose wall surfaces have been electrostatically coated with a lubricant, thereby eliminating or reducing a lubricant in the metal powder composition, resulting in a metal composite having greater density and strength. The method further includes providing an electrostatic charge to the metal powder composition. A powder metallurgy apparatus is also provided.
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