Electric discharge machining circuit

Details Electric discharge machining circuit Electric discharge machining circuit

1988-01-13

1990-07-10

Leung, Philip H.

Electric heating

Metal heating

Cutting or disintegrating

219 6918, B23H 102

Patent

active

049408720

ABSTRACT:
A discharge machining apparatus adapted to quickly absorb the energy, which has been accumulated by an inductance component during discharge machining, during the non-discharge period. The accumulated energy is absorbed as it is caused to flow as a current in an equivalent resistor having a resistance varying function. With this invention, it becomes possible to increase the frequency of discharges per unit time since the energy is quickly absorbed without residue as the change in the resistance value of the equivalent resistor causes the current flowing in it to shift from an oscillating state to a normal damping state.

REFERENCES:
patent: 4672303 (1987-06-01), Newton
patent: 4710603 (1987-12-01), Obara
patent: 4727308 (1988-02-01), Huljak et al.

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