POWDER METALLURGY APPARATUS AND PROCESS USING ELECTROSTATIC DIE WALL LUBRICATION

摘要

A method of manufacturing a metal composite part by compressing a metal powder composition in a mold, wherein a lubricant material is electrostatically coated on the wall surface of the mold, thereby removing or reducing the lubricant material in the metal powder composition. As a result, metal composite parts of greater density and strength can be produced. The method further includes charging the electrostatic charge to the metal powder composition.;The present invention also provides a powder metallurgy apparatus.