Process and apparatus for electrical machining of an electrode w

Details Process and apparatus for electrical machining of an electrode w Process and apparatus for electrical machining of an electrode w

1977-12-20

1979-01-16

Mack, John H.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

20412925, 2041295, 204224M, 204225, 219 69M, B23P 100, B23P 104, B23P 108, B23P 114

Patent

active

041348079

ABSTRACT:
A process and apparatus for electrically machining an electrode workpiece by means of an electrode tool, in which the electrode workpiece is first machined by EDM by way of electrical discharges occuring across a dielectric fluid. The electrode workpiece is subsequently subjected to a finishing pass in the course of which it is machined by electrochemical machining (ECM) through a conductive electrolyte replacing the dielectric fluid. The machining phase by ECM is effected by means of the same electrode tool or by means of an electrode tool of the same dimensions as is used during the machining phase with EDM. During machining by EDM, the electrode tool is orbited, or translated, in a direction perpendicular to the axis of feed of the electrode tool relative to the electrode workpiece, with an amplitude larger than the amplitude during machining by ECM.

REFERENCES:
patent: RE26970 (1970-10-01), Bentley et al.
patent: 3403084 (1968-09-01), Andrews
patent: 3689387 (1972-09-01), Jumer
patent: 3773636 (1973-11-01), Augustin
patent: 3912898 (1975-10-01), Pfau et al.
patent: 4049942 (1977-09-01), Balleys et al.

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