Electric discharge machining electrode

Details Electric discharge machining electrode Electric discharge machining electrode

1988-03-17

1990-08-28

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

204291, B23H 724

Patent

active

049527681

ABSTRACT:
An electrode for precision electric discharge machining having an improved machining rate and surface smoothness with respect to conventional graphite and copper electrodes. The electrode is formed by silicon or other materials which has the same characteristics as silicon, a base of a low melting point metal or an alloy of such a low melting point metal is covered with a layer composed of a mixture of the metal and a high resistivity inorganic compound. The outer layer may be formed by adhesion or by thermal spraying or by a powder metal sintering technique.

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patent: 4459453 (1984-07-01), Inoue
patent: 4673787 (1987-06-01), Inoue
"EDM Electrode Material", by Trommer in IBM Technical Disclosure Bulletin, vol. 12, No. 7, Dec. 1969.

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