Timing sequence control system for electrical discharge machinin

Details Timing sequence control system for electrical discharge machinin Timing sequence control system for electrical discharge machinin

1975-02-03

1976-12-07

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

219 69G, B23P 108

Patent

active

039964450

ABSTRACT:
On-time and off-time control over the current pulses by the timing unit associated with the power supply for EDM apparatus is supervised by fault condition and voltage drop detectors to modify automatic operation of the timing unit. The fault condition detectors monitor gap conditions, and track voltage variations of the dc cutting current supply.

REFERENCES:
patent: 3697879 (1972-10-01), Holliday
patent: 3778579 (1973-12-01), Takanade
patent: 3805012 (1974-04-01), Bell et al.
patent: 3809848 (1974-05-01), Bell
patent: 3823297 (1974-07-01), Cunningham
patent: 3843864 (1974-10-01), Wohlabaugh
patent: 3875362 (1975-04-01), Balleys

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