Method for controlling properties of metals and alloys

Details Method for controlling properties of metals and alloys Method for controlling properties of metals and alloys

1982-12-20

1984-07-31

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

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

72352, 72360, 72438, B21D 2200

Patent

active

044622384

ABSTRACT:
A method for increasing strength and/or hardness of a preshaped metal specimen by cold working is disclosed. Compressive force is applied to the specimen slowly so that the yield strength of the specimen progressively increases and the specimen exhibits squirming instability as its diameter increases.

REFERENCES:
patent: 2169113 (1939-08-01), Sheppard
patent: 3167859 (1965-02-01), Bailey
patent: 3209453 (1965-10-01), Bertoglio et al.
patent: 3832763 (1974-09-01), Schober
patent: 4045644 (1977-08-01), Shafer et al.

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