Electrical discharge machining method and apparatus using ultras

Details Electrical discharge machining method and apparatus using ultras Electrical discharge machining method and apparatus using ultras

1981-01-19

1983-04-12

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69G, 219 69R, 2041297, 20415715, B23P 108

Patent

active

043799604

ABSTRACT:
An EMD method and apparatus, especially for a cavity-sinking type of machining, wherein a combination of magnetic fluxes and ultrasonic waves is applied externally to the region of a machining recess being progressively formed in a workpiece electrode juxtaposed with a tool electrode while the electrodes are displaced relative to one another and a succession of machining electrical pulses are applied across a dielectric flooded machining gap provided therebetween.

REFERENCES:
patent: 3194640 (1965-07-01), Nesh
patent: 3378473 (1968-04-01), Inoue
patent: 3533928 (1970-10-01), Inoue
patent: 3567604 (1971-03-01), Bodine
patent: 3710067 (1973-01-01), Ullmann et al.
patent: 4205213 (1980-05-01), Inoue

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