Process and device for the manufacture of blisters with high bar

Details Process and device for the manufacture of blisters with high bar Process and device for the manufacture of blisters with high bar

1979-05-21

1981-09-15

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

Using fixed die

72350, B21D 2200

Patent

active

042890098

ABSTRACT:
The invention concerns a process and a device for manufacturing blisters with high barrier properties from a metal-plastic composite foil which can be deep drawn, in particular from an aluminum-plastic composite foil which is held fast in the clamping facility of a device for manufacturing blisters. In shaping the foil into one or more blisters, pressure is applied pneumatically or pneumatically and hydraulically to at least one side of the foil which stretches onto and over a lubricating layer or easy slip plate on the base of a die.

REFERENCES:
patent: 3664172 (1972-05-01), Cvacho
patent: 4045986 (1977-09-01), Laycock

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