Electric discharge machine

Details Electric discharge machine Electric discharge machine

1991-05-30

1992-06-02

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

219 6916, B23H 718, B23H 720

Patent

active

051189151

ABSTRACT:
An electric discharge machine in which a machining gap or machining area is calculated from the rise time of a pulse voltage applied to the machining gap to stabilize and optimize the marching operation. An abnormal machining conditions such as an arc discharge can be positively detected and avoided. Further, the low surface roughness finish which is impossible to achieve in a large area machining operation can be accomplished.

REFERENCES:
patent: 3609281 (1971-09-01), Kauffman
patent: 3987269 (1976-10-01), Inoue et al.
patent: 4055777 (1977-10-01), Black

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