Electrode tool for EDM and method for utilizing such electrode t

Details Electrode tool for EDM and method for utilizing such electrode t Electrode tool for EDM and method for utilizing such electrode t

1979-05-21

1981-02-17

Reynolds, B. A.

Electric heating

Metal heating

Cutting or disintegrating

B23P 116

Patent

active

042517060

ABSTRACT:
A method for machining materials difficult to cut by EDM conventional processes and consisting in providing contamination of the machining or dielectric fluid used in the course of electrical discharge machining with particles of a metal or metallic alloy of low vaporization temperature selected, for example, from the group consisting of zinc, cadmium, tin, lead, antimony and bismuth. The contamination particles are obtained directly from a surface coating placed directly on the electrode tool or from an additional piece of metal or metallic alloy which is electro-eroded at the same time as a cut is effected by the electrode tool in an electrode workpiece, and the contaminated fluid is circulated in the machining zone between the electrodes, the contaminated fluid facilitating the triggering of the electrical discharges in the machining zone and providing an increase of the machining rate, or material removal rate.

REFERENCES:
patent: 3061708 (1962-10-01), Pfau
patent: 3553415 (1971-01-01), Girard
patent: 3851135 (1974-11-01), Moracz et al.
patent: 4005304 (1977-01-01), Stayner

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