Electroerosive wire-cutting method and apparatus with a shaped h

Details Electroerosive wire-cutting method and apparatus with a shaped h Electroerosive wire-cutting method and apparatus with a shaped h

1981-03-19

1983-11-08

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, 219 69D, 2041296, B23P 102

Patent

active

044144563

ABSTRACT:
An electroerosive wire-cutting method and apparatus wherein a high-velocity stream of the cutting liquid medium produced through a small-opening nozzle is injected into a low-velocity stream of the cutting liquid medium produced through a large-opening nozzle and directed towards the region of the gap. The high-velocity cutting-liquid stream has a thickness substantially equal to the thickness of the cutting slot being formed behind the advancing wire electrode in the workpiece and is directed at a region of the cutting gap behind the advancing wire electrode. Gases (e.g. oxygen or ozone) and/or abrasive particles may be entrained in the high velocity cutting-liquid stream.

REFERENCES:
patent: 3509304 (1970-04-01), Moore
patent: 4317019 (1982-02-01), Itoh
patent: 4321450 (1982-03-01), Inoue

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