Electrical discharge machining pulse control method and apparatu

Details Electrical discharge machining pulse control method and apparatu Electrical discharge machining pulse control method and apparatu

1972-10-12

1978-03-21

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, 219 69P, 315225, B23P 108

Patent

active

RE0295892

ABSTRACT:
A system for controlling machining pulse on-off time to limit gap power in response to a short or an open circuit machining gap condition in electrical machining systems wherein a multivibrator applies a preset on-off time at an electronic switch between the power supply and the gap. The condition detected at the gap in the form of an electrical signal is delivered via a delay network to a control circuit adapted to shunt one of the impedances of the resistance-capacitance network of the multivibrator.

REFERENCES:
patent: 3018411 (1962-01-01), Webb
patent: 3264517 (1966-08-01), Ullmann et al.
patent: 3277338 (1966-10-01), Webb
patent: 3439145 (1969-04-01), Sennowitz
patent: 3614368 (1971-10-01), Lobur
patent: 3624337 (1971-11-01), Kauffman

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