Wire cut electric discharge machine

Details Wire cut electric discharge machine Wire cut electric discharge machine

1989-06-14

1990-05-29

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

83 16, 140139, 219 1061R, B23H 710, B21F 1100

Patent

active

049298100

ABSTRACT:
A wire cut discharge machine comprises a wire electrode, wire electrode feeding rollers, a tension applying unit for applying a tension to the wire electrode, a current applying unit for applying a high frequency current to the wire electrode, and a wire electrode retaining roller. Each of the tension applying unit and the current applying unit includes selecting unit having a plurality resistors different in resistance, and a plurality of make contacts of relay. The selecting units select a best tension and a best current for a wire electrode to be cut according to a diameter and a kind of the wire electrode.

REFERENCES:
patent: 4537102 (1985-08-01), Balzer
patent: 4743730 (1988-05-01), Martin et al.

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