Traveling-wire EDM method and apparatus with a cooled machining

Details Traveling-wire EDM method and apparatus with a cooled machining Traveling-wire EDM method and apparatus with a cooled machining

1982-07-06

1985-05-28

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69W, 219 69D, B23P 108

Patent

active

045202524

ABSTRACT:
A traveling-wire EDM method and apparatus in which a machining fluid in liquid phase is sufficiently cooled in its supply conduit to less than a predetermined critical temperature, e.g. 4.degree. C. To this end, the wire electrode prior to introduction into the fluid supply nozzle may be cooled by passage through a refrigerant or by thermoelements. Preferably, the wire electrode is passed between a pair of ice-formed guide members disposed across the nozzle units. The eventual machining fluid may be gas or liquid in which fine ice particles or fragments are suspended.

REFERENCES:
patent: 3553415 (1971-01-01), Girard
patent: 3626137 (1971-12-01), Bertolasi
patent: 3928163 (1975-12-01), Ullmann et al.
patent: 4317019 (1982-02-01), Itoh

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