Electric heating – Metal heating – Cutting or disintegrating
Patent
1983-01-27
1985-07-02
Envall, Jr., Roy N.
Electric heating
Metal heating
Cutting or disintegrating
219 69C, B23P 108, B23P 114
Patent
active
045270341
ABSTRACT:
An electrode positioning method and apparatus for NC-EDM wherein a tool electrode and a workpiece are relatively displaced under commands of an NC unit while EDM stock removal of the workpiece is advanced by developing effective electrical discharges between the tool electrode and the workpiece. The method comprises counting the effective electrical discharges, deriving a corrective amount of displacement from a prescribed amount of electrode wear per single effective discharge, the effective machining area of the tool electrode and the counted number of the electrical discharges. The corrective amount is used to correct the commanded relative displacement.
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Inoue Kiyoshi
Shimizu Akihiko
Dubno Herbert
Envall Jr. Roy N.
Evans Geoffrey S.
Inoue-Japax Research Incorporated
Japax Incorporated
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