Electric heating – Metal heating – Cutting or disintegrating
Patent
1985-08-02
1987-10-13
Paschall, M. H.
Electric heating
Metal heating
Cutting or disintegrating
219 69C, B23H 102, B23H 718
Patent
active
047000392
ABSTRACT:
The up and down movement of the tool electrode of an electrical discharge machine is controlled by a circuit arrangement including an electrical discharge condition judgment circuit monitoring the electrical discharge between a tool electrode and a workpiece from the waveform of the discharge and outputting a pulse signal in the event the discharge is abnormal, a motion command circuit which receives and counts the judgment circuit output signal and generates a command signal when the count reaches a set value, and an electrode control circuit responsive to the command signal and causing the tool electrode to move up and down.
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Dobashi Toshihiro
Imai Kiyoshi
Konno Masanori
Amada Company Limited
Evans Geoffrey S.
Paschall M. H.
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