Electric discharge system including means to normalize the inter

Details Electric discharge system including means to normalize the inter Electric discharge system including means to normalize the inter

1983-06-30

1986-07-22

Albritton, Clarence L.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, 219 69M, 219 69S, 219 69D, B23H 102, B23H 110

Patent

active

046021426

ABSTRACT:
A voltage sensor senses the gap voltage between an electrode and a conductive workpiece and compares it to a reference voltage using a comparator amplifier. The output from the comparator amplifier is used by an oil hydraulic servomechanism to raise and lower the electrode. An ultrasonic sensor detects impulse waves from discharges and a current sensor detects the working current for determining the working conditions of the gap. After a predetermined number of irregular discharges occurs the gap width may be widened by the servomechanism, the flow of dielectric fluid may be increased to remove sludge and debris, or the time between machining pulses may be increased.

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