Method of forging powdered metallurgy preforms

Details Method of forging powdered metallurgy preforms Method of forging powdered metallurgy preforms

B - Operations, Transporting

22

F

75/165

B22F 3/16 (2006.01)

Patent

CA 1078226

METHOD OF FORCING POWDER METALLURGY PREFORMS ABSTRACT OF THE DISCLOSURE A method of making forged powdered iron base metal articles of high Rc hardness without need for further machining, surface treatment nor heat treatment after quenching comprising forming a pre-alloyed metal powder, compressing said powder into a briquette, sintering said briquette into a preform, heating said preform to a temperature above its austenizing tempera- ture, forging said preform while above its austenizing temperature into a forged article, permitting the article to cool to approximately its austenizing temperature, and promptly quenching said forged article in a quenching bath.

259722

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