Electric heating – Metal heating – Cutting or disintegrating
Patent
1975-12-11
1977-08-02
Reynolds, Bruce A.
Electric heating
Metal heating
Cutting or disintegrating
23515111, 318640, B23P 104
Patent
active
040397793
ABSTRACT:
Electrical discharge machining apparatus having means to sense the position of the electrode at the start of EDM machining of a workpiece. The apparatus includes means to measure the forward movement of the electrode during each machining cycle and regulate the backward retracting movement of the electrode to a preselected distance so as to compensate for erosion of the electrode during the machining cycle to thereby facilitate positioning of the electrode in the correct location for the next machining cycle. The apparatus includes a sensing device operable to transmit electrical pulses corresponding to incremental movements of the electrode and control circuitry which receives the pulses and controls subsequent movement of the electrode.
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Raycon Corporation
Reynolds Bruce A.
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