Apparatus for reverse redrawing

Details Apparatus for reverse redrawing Apparatus for reverse redrawing

1980-03-28

1982-04-27

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72347, 72377, B21D 2200

Patent

active

043264018

ABSTRACT:
An apparatus for reverse redrawing of a cup is provided with an annular ring surrounding the upper end periphery of body portion of a die ring, provided concentrically with the die ring, a slightly larger clearance than the wall thickness of the cup to be redrawn being provided between the inside surface of the annular ring and the outside surface of the die ring.

REFERENCES:
patent: 1649841 (1927-11-01), May
patent: 3314274 (1967-04-01), Langeuis
patent: 3678725 (1972-07-01), Langeuis
patent: 4036056 (1977-07-01), Saunders

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