Process and apparatus for electrical discharge shaping using seq

Details Process and apparatus for electrical discharge shaping using seq Process and apparatus for electrical discharge shaping using seq

1974-02-28

1976-08-10

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

719 69C, 719 69P, B23P 108

Patent

active

039743578

ABSTRACT:
A process and apparatus for the electrical discharge shaping of a workpiece to a shape corresponding to an electrode shape by sequentially applying an intermittent pulse voltage across the working gap between the workpiece and the electrode and wherein a pulse current having a special slant line waveform, e.g. a triangular waveform, which is different from a rectangular waveform is passed across the working gap from the initiation of discharge so as to minimize the electrode consumption ratio.

REFERENCES:
patent: 2796509 (1957-06-01), Blake
patent: 3098149 (1963-07-01), Iuoue
patent: 3257583 (1966-06-01), Pfau
patent: 3264517 (1966-08-01), Ullman et al.
patent: 3705287 (1972-12-01), Saito et al.
patent: 3769483 (1973-10-01), Bell et al.
patent: 3892936 (1975-07-01), Kobayashi et al.

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