Electrode for electric discharge machining and method for produc

Details Electrode for electric discharge machining and method for produc Electrode for electric discharge machining and method for produc

1986-02-03

1989-01-10

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

427 39, B23H 104, B05D 306

Patent

active

047975270

ABSTRACT:
An electrode for electric discharge machining wherein at least a part of the surface of the electrode is coated with a non-single crystalline insulator to prevent undesirable electric discharge between the electrode and a workpiece. The electrode may also have a coating of a buffer material formed from a metal having a small thermal expansion coefficient or from an amorphous material, in which case the exterior coat is a hard insulator with a Vickers hardness of at least 1000 coated on the buffer. A process for the production of these electrodes using plasma discharge methods is also described.

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