Generic electrode EDM method and apparatus, and assembly for mai

Details Generic electrode EDM method and apparatus, and assembly for mai Generic electrode EDM method and apparatus, and assembly for mai

1983-02-23

1985-09-24

Envall, Jr., Roy N.

Electric heating

Metal heating

Cutting or disintegrating

2041295, 204280, 204288, 219 69D, 219 69E, 219 69G, B23P 112

Patent

active

045434603

ABSTRACT:
An EDM method and apparatus, utilizing a generic electrode, i.e. a tool electrode independent in shape of a desired cavity or contour to be machined in a workpiece, and utilizing a three-dimensional machining feed displacement, makes use of an assembly for maintaining the contamination of the machining liquid with machining products, e.g. chips and gases, at a certain enhanced level. The assembly includes a pad or block member disposed in the proximity of the workpiece with a small spacing therewith while surrounding the generic electrode to mechanically control or limit discharging of the machining products out of the EDM gap, thereby enabling a stabilized production of machining electrical discharges across the EDM gap maintained substantially constant.

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