Process and apparatus to simultaneously consolidate and reduce m

Details Process and apparatus to simultaneously consolidate and reduce m Process and apparatus to simultaneously consolidate and reduce m

1986-04-09

1987-09-15

Terapane, John F.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 14, 419 19, 419 28, 419 42, 419 45, 419 48, 266 83, 266108, 266255, 75236, 75244, B22F 314, C22C 2902, C22C 2916

Patent

active

046938630

ABSTRACT:
A powder metallurgy consolidation process and apparatus for carrying out said process produces integral metal bodies by heating metal powder of a predetermined composition to a temperature sufficient to cause solid state interparticle bonding, while simultaneously maintaining a reactive fluid in contact with the metal powder. The metal powder is compacted to a density greater than 90% of the full theoretical density of the composition after the reactive fluid has been removed. The reactive fluid is selected to modify the powder particle surface chemistry in order to improve bondability and to obtain other properties as desired. Metal bodies which have been consolidated by the process are sufficiently dense to be mechanically hot worked and exhibit exceptionally low retained gas content.

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