Servo feed system for an electrical discharge machining apparatu

Details Servo feed system for an electrical discharge machining apparatu Servo feed system for an electrical discharge machining apparatu

1979-03-26

1980-12-30

Kozma, Thomas J.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, 318432, 318678, 318681, B23P 112

Patent

active

042425603

ABSTRACT:
The servo circuit is operable both in a dual and in a single mode and includes an analog gate for multiple gap inputs. Dual operation is required where more than one gap is involved such as in the situation where multiple electrodes are carried by a common machine tool ram. In the servo operation, the unwanted information over a relatively wide voltage range is eliminated and the more significant voltage excursions around the 30 volt or gap breakdown voltage level are employed. This compensates for the non-linearity that is inherent in the electrical discharge machining gap.

REFERENCES:
patent: 3485992 (1969-12-01), Sennowitz
patent: 3581043 (1971-05-01), Ullmann
patent: 3697871 (1972-10-01), MacMullan
patent: 3793502 (1974-02-01), Bell, Jr.
patent: 4049942 (1977-09-01), Balleys et al.
patent: 4152569 (1979-05-01), Bell, Jr. et al.

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