Method of forming relatively hard materials

Details Method of forming relatively hard materials Method of forming relatively hard materials

1995-07-14

1997-03-04

Jones, David

Metal deforming

With means to drive tool

With means to selectably control movement of tool

723554, 72358, B21D 2206, B21J 730

Patent

active

056068883

ABSTRACT:
A method of forming relatively hard materials is disclosed. The method includes providing tooling for performing the forming operation on a strip (10) of relatively hard material. The tooling includes a forming tool (22) and a mating die (24) coupled to a high speed stamping and forming machine (70). The tooling and machine are arranged so that the forming operation is performed within a time period that is less than the stress relaxation time constant for the material being formed.

REFERENCES:
patent: 2861335 (1958-11-01), Huet
patent: 2898788 (1959-08-01), Baxa
patent: 3365926 (1968-01-01), Price
patent: 3730039 (1973-05-01), Fedrigo
patent: 4213323 (1980-07-01), De Deugd
patent: 5159826 (1992-11-01), Miyazawa et al.
Dreis & Krump Manufacturing Co., "Select-a-Speed", The Iron Age, p. 104 Oct. 1964.
Patent Abstracts of Japan: vol. 13, No. 552 (M-903), Dec. 1989 and JP, A, 12 028616 (Sky Alum), 12 Sep. 1989.

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