EDM parameter control system

Details EDM parameter control system EDM parameter control system

1975-01-14

1977-01-25

Reynolds, Bruce A.

Electric heating

Metal heating

Cutting or disintegrating

219 69M, 219 69P, 23515111, B23P 108

Patent

active

040053032

ABSTRACT:
An EDM apparatus in which the control system is fully adaptive by having a reference counter which is stepped up or down depending upon the occurrence of undesirable discharge conditions. The control system thus includes a counter receiving signals representing a desirable gap condition over a relatively short time period and signals representing the non-development of the undesirable condition over a relatively long time period as established by appropriate timer means. A parameter of the gap is controlled in response to a comparison of the gap condition over a sequence of pulses with a desirable state as represented by the count registered in the counter.

REFERENCES:
patent: 3739136 (1973-06-01), Marendaz
patent: 3764775 (1973-10-01), Hassingler
patent: 3781507 (1973-12-01), Inoue
patent: 3793502 (1974-02-01), Bell
patent: 3816692 (1974-07-01), Ratmansky

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