Graphite matrix electrode with dispersed silicon particles

Details Graphite matrix electrode with dispersed silicon particles Graphite matrix electrode with dispersed silicon particles

1992-02-05

1994-11-29

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

B23H 106

Patent

active

053692403

ABSTRACT:
An electrode for an electric discharge machining apparatus of the type in which a workpiece is machined by generating an electric discharge across a machining gap between a confronting electrode and the workpiece through a machining solution includes a matrix of a first conductive material and a plurality of crystalline semi-crystalline or amorphous particles of a second conductive material for promoting a plurality of discharge sites for the electric discharge, the particles being uniformly dispersed throughout void spaces of the matrix. The particle sizes and weight ratio of the first and second conductive materials are established so as to provide an optimal discharge site density in the exposed surfaces of the electrode.

REFERENCES:
patent: 4373127 (1983-02-01), Haskett et al.
patent: 4459453 (1984-07-01), Inoue
patent: 4799957 (1989-01-01), Vogel
patent: 4952768 (1990-08-01), Mohri et al.

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