Power source for wire-cut electric discharge machines

Details Power source for wire-cut electric discharge machines Power source for wire-cut electric discharge machines

1980-12-18

1983-06-07

Shaw, C. C.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, 219 69W, B23P 108

Patent

active

043872859

ABSTRACT:
A power source for wire-cut electric discharge machines which is designed to increase the cutting speed and improve the surface roughness of a workpiece. A capacitor for supplying a discharge energy across a wire electrode and the workpiece is always by a DC power supply and the charged voltage across the capacitor is applied across the machining gap via a switching element. The switching element is turned ON when the voltage across the capacitor reaches a predetermined level, and turned OFF when the voltage becomes substantially zero, permitting rapid charging of the capacitor and the generation of a uniform discharge energy.

REFERENCES:
patent: 3246113 (1966-04-01), Scarpelli
patent: 3627966 (1971-12-01), Osenbruggen et al.
patent: 3757073 (1973-09-01), Osenbruggen et al.
patent: 4310741 (1982-01-01), Inoue

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