Method of producing hollow articles by deep drawing

Details Method of producing hollow articles by deep drawing Method of producing hollow articles by deep drawing

1982-09-02

1984-09-11

Gilden, Leon

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

72 57, 72350, 7245302, B21D 2200

Patent

active

044702876

ABSTRACT:
A press for manufacturing hollow articles by deep drawing comprising a high pressure vessel (1) accommodating a die (3) with a punch (4). A blank (14) is accommodated in an annular high pressure chamber (16) communicating with a high pressure chamber (19) of an intensifier (20). The press also comprises a device (27) for regulating pressure in the annular chamber to control pressure acting upon the peripheral portion of a blank in accordance with a preset law, an appliance (39) for setting pressure in the annular chamber is made in the form of a tracer whose profile is equidistant with the curve characterizing the alteration of pressure in the annular chamber (16).

REFERENCES:
patent: 3452566 (1969-07-01), Arche
patent: 3495433 (1970-02-01), Fuchs, Jr.

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