Device for electrical discharge forming

Details Device for electrical discharge forming Device for electrical discharge forming

1976-05-03

1977-06-07

Gilden, Leon

Metal deforming

By application of fluent medium, or energy field

By kinetic energy of fluid or field

72DIG25, 72DIG24, B21D 2602

Patent

active

040275159

ABSTRACT:
A device for electrical discharge forming comprises an explosion chamber and a work-holding die pressed against the explosion chamber in the course of forming. The wall of the explosion chamber has at least two channels with a cross section gradually changing over their length. The channels are arranged at an acute angle to the geometrical axis of the explosion chamber so that their wider ends are directed into the explosion chamber whereas the narrower ends are directed to the die near the zone of the work. As a result, part of the impact wave created by the explosion passes through the channels and acts on the face surfaces of the work thus ensuring more intensive and uniform shaping of the work. This device is capable of producing complex-shaped parts of a high quality from hard-to-work materials.

REFERENCES:
patent: 3195334 (1965-07-01), Filler
patent: 3240079 (1969-01-01), Erlandson
patent: 3273365 (1966-09-01), Felts
patent: 3383889 (1968-05-01), Amini et al.
patent: 3643482 (1972-02-01), Hertel
patent: 3675453 (1975-07-01), Morich
patent: 3742746 (1973-07-01), Erlandson

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