Process and apparatus for electro-erosion machining by electrica

Details Process and apparatus for electro-erosion machining by electrica Process and apparatus for electro-erosion machining by electrica

1973-08-24

1976-03-09

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, 219 69P, B23P 108

Patent

active

039433218

ABSTRACT:
An electro-erosion process and apparatus for improving the rate of material removal from a workpiece and for decreasing the rate of wear of the electrode tool in an electrical discharge machining apparatus, by controlling the average value of the machining current across the machining gap between the electrode tool and the workpiece by providing cut-off time intervals between consecutive pulse trains at a frequency of at least 200 Hz, and by controllably varying at least one of the parameters of operation consisting of the number of the pulses included within a single pulse train, the duration of application of said pulses within a single pulse train, and at least the longest of the intervals of time comprised between two consecutive voltage pulses.

REFERENCES:
patent: 3056065 (1962-09-01), Porterfield
patent: 3590317 (1971-06-01), Sennowitz
patent: 3614368 (1971-10-01), Lobur
patent: 3623148 (1971-11-01), Berghausen
patent: 3697719 (1972-10-01), Verner
patent: 3755645 (1973-08-01), Kauffman
patent: 3789182 (1974-01-01), Verner

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