Method of deep-drawing of a container or the like from an alumin

Details Method of deep-drawing of a container or the like from an alumin Method of deep-drawing of a container or the like from an alumin

1978-06-12

1980-03-18

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

113120AA, B21D 2200

Patent

active

041932854

ABSTRACT:
A method of and apparatus for producing a container or the like by deep-drawing a flat blank of a sheetlike aluminium material. The blank is deep-drawn by means of a first drawing stroke into a cylindrical container blank and brought into its final shape by means of a counter drawing stroke, whereby the inner wall and outer wall of the cylindrical container maintain their positions. The apparatus comprises two telescoping dies with oppositely directed working strokes, between which dies there is arranged at least one drawing ledge.

REFERENCES:
patent: 2075847 (1937-04-01), Nathensoll
patent: 2761406 (1956-09-01), Schnell
patent: 3452396 (1969-07-01), Garver et al.
patent: 3685338 (1972-08-01), Hoffman
patent: 3844154 (1974-10-01), Bozek

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