Control of an electro-discharge machine tool

Details Control of an electro-discharge machine tool Control of an electro-discharge machine tool

1978-09-12

1980-10-21

Kozma, Thomas J.

Electric heating

Metal heating

Cutting or disintegrating

219 69C, B23P 112

Patent

active

042296358

ABSTRACT:
Electro-discharge machining device including means for preventing the machining electrode from surging forward when the electrode breaks through a workpiece. The machining electrode is mounted on a first movable member including a portion which engages a motor driven second movable member. Once the first and second movable members are engaged, the first movable member is constrained to move toward the workpiece at a speed no greater than the speed of the second movable member. Sensing and signalling means control the speed of the second movable member by a signal representing the proximity of the first and second movable members.

REFERENCES:
patent: 3125700 (1964-03-01), Bentley et al.
patent: 3562476 (1968-03-01), Rupert
patent: 3729609 (1973-04-01), Check et al.
patent: 4146770 (1979-03-01), Dinsdale et al.

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