Method of and system for the controlling of an apparatus for the

Details Method of and system for the controlling of an apparatus for the Method of and system for the controlling of an apparatus for the

1974-08-01

1977-01-18

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, 219 69P, B23P 108

Patent

active

040041239

ABSTRACT:
Discrete electric-discharge pulses are applied across a dielectric-swept gap between an electrode and a workpiece by triggering an ON-OFF switch between its conductive and nonconductive states in accordance with parameters of the gap so that per pulse adaptive control of the individual machining discharges is effected. An integrator responsive to the gap current, may be used to operate the switch means which may be turned on upon the detection of a pilot discharge. The number of unsatisfactory discharges is detected and, if this number exceeds a predetermined level, is used to control a gap parameter. The integrator signal may be digitalized for accumulation in a counter controlling pulse duration and other parameters.

REFERENCES:
patent: 3365612 (1968-01-01), Schienholt
patent: 3454829 (1969-07-01), Schienholt
patent: 3604885 (1971-09-01), Inoue
patent: 3778579 (1973-12-01), Takanada
patent: 3781507 (1973-12-01), Inoue

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