Method for cold forming metal articles having diverging members

Details Method for cold forming metal articles having diverging members Method for cold forming metal articles having diverging members

1981-04-24

1983-08-23

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

72354, 72377, B21D 2206

Patent

active

043996825

ABSTRACT:
A method for cold forming a metallic billet into an article having divergent members with a single hit comprises depositing the billet centrally within a die cavity between a first member and a second member. The first and second members are hydraulically urged toward one another at an equivalent velocity until the divergent portions of the die cavity are filled. The forming velocity is between about 30 percent and about 60 percent of the normal forming velocity for the material comprising the billet.

REFERENCES:
patent: 4078414 (1978-03-01), Orain
patent: 4177665 (1979-12-01), Schurmann
patent: 4197757 (1980-04-01), Hackett

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