Control means for the relative displacement of the electrodes of

Details Control means for the relative displacement of the electrodes of Control means for the relative displacement of the electrodes of

1978-12-27

1981-04-21

Shaw, C. C.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, B23P 112

Patent

active

042634946

ABSTRACT:
In an EDM apparatus in which the relative displacement between an electrode tool and an electrode workpiece is effected by a servo motor, a control system for the servo motor to effectuate the relative displacement of the electrodes at a speed depending from the machining conditions at the gap between the electrodes and from the difference between a reference position signal and a signal representing the actual relative position of the electrodes, such as to limit the relative displacement of the electrodes until a predetermined final relative position has been reached.

REFERENCES:
patent: 4049942 (1977-09-01), Balleys et al.
patent: 4057703 (1977-11-01), Pfau
patent: 4135070 (1979-01-01), Pfau et al.

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