Drawing apparatus

Details Drawing apparatus Drawing apparatus

1980-03-31

1982-11-30

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

72347, 72348, B21D 3908

Patent

active

043610200

ABSTRACT:
A thin sheet having a low rigidity is drawn while being depressed over the radiused corner of a die by hydrostatic force to obtain a formed article whose sidewall part and flange part have no wrinkles. A laminate not more than about 200 .mu.m in thickness and consisting of a thermoplastic resin film, aluminum foil and a heat-sealable resin film is drawn into a formed article or a container which is light in weight and suitable for containing foods, for instance.

REFERENCES:
patent: 3596485 (1971-08-01), Burl
patent: 3943741 (1976-03-01), Sunderland

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