Method for forming structural parts

Details Method for forming structural parts Method for forming structural parts

1985-07-17

1985-12-24

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72342, B21D 2212

Patent

active

045597979

ABSTRACT:
Method for producing structures from metal workpieces which may or may not be capable of superplastic forming, such as titanium alloy and steel, using a forming die having a predetermined contour or shape and a cooperating pressure diaphragm formed of a metal capable of superplastic forming. Fluid pressure is applied to one side of the pressure diaphragm to cause stretching or expansion thereof by superplastic forming, and forcing the diaphragm against the workpiece, which in turn is caused to move or expand into contact with the forming die, to produce a structural component of predetermined shape. With the proper application of pressure, temperature and time, metal parts, e.g. 8 to 12 inches thick, can be formed in addition to parts formed from comparatively thin sheet metal.

REFERENCES:
patent: 3934441 (1976-01-01), Hamilton
patent: 4087037 (1978-05-01), Schier
patent: 4117970 (1978-10-01), Hamilton
patent: 4188811 (1980-02-01), Brimm
patent: 4269053 (1981-05-01), Agrawol
patent: 4409809 (1983-10-01), Buchanan

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