Sheet forming method and apparatus

Details Sheet forming method and apparatus Sheet forming method and apparatus

1978-04-03

1979-03-27

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72342, 72364, B21D 2210

Patent

active

041459032

ABSTRACT:
A method and apparatus for forming a superplastic metal sheet features the utilization of a plunger movable within a chamber filled with finely divided particulate material to create a column of material arranged to bear against the metal sheet and effect mold forming thereof within a mold cavity heated to required superplastic forming temperature. The material additionally aids in minimizing loss of heat from the mold cavity and insures against non-uniform heating of the metal sheet.

REFERENCES:
patent: 537481 (1895-04-01), Parker
patent: 3313138 (1967-04-01), Spring et al.
patent: 3418836 (1968-12-01), Olson
patent: 3516274 (1970-06-01), Graham et al.
patent: 3595060 (1971-07-01), Mundy
patent: 3768142 (1973-10-01), Raczel

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