Specialized metallurgical processes – compositions for use therei – Compositions – Loose particulate mixture containing metal particles
Reexamination Certificate
2007-09-04
2007-09-04
King, Roy (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Compositions
Loose particulate mixture containing metal particles
C419S037000, C508S454000, C508S527000, C508S539000, C508S550000, C508S551000
Reexamination Certificate
active
10764838
ABSTRACT:
The present invention provides a lubricant system in the pressing of powders to form a part. The lubricant system is a solid at ambient conditions. However, upon application of pressure during the pressing of the metal parts, the lubricant system forms a liquid phase along the walls of cavity in which the powder is being pressed. The lubricant system may also be used in connection with a polar powder thereby providing certain beneficial results.
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Ball et al., “Lower Melting Temperature Die Wall Lubricants,” P/M Science & Technology Briefs, vol. 2, No. 1, 2000, pp. 22-26.
Apex Advanced Technologies, LLC
King Roy
Mai Ngoclan T.
Rankin, Hill Porter & Clark LLP
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