Electrical discharge machining apparatus

Details Electrical discharge machining apparatus Electrical discharge machining apparatus

1992-12-14

1994-03-01

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

219 6914, B23H 1100

Patent

active

052909875

ABSTRACT:
An apparatus for electrical discharge machining (EDM) is disclosed having a housing and a workpiece support assembly secured to the housing for holding a workpiece in a predetermined location. An EDM electrode is attached to the housing for performing the EDM machining. A tank assembly is also attached to the housing and movable between a machining position and a retracted position. In the machining position, the tank assembly encompasses a workpiece secured to the workpiece support area and filled with a dielectric fluid necessary for the EDM machining process. In its retracted position, the tank assembly is spaced away from the workpiece to facilitate access to the workpiece for removal of the finished workpiece and reattachment of a new workpiece in preparation for the next EDM machining operation.

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patent: 2909640 (1959-10-01), Fairbrother
patent: 3541291 (1970-11-01), Johanson
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patent: 4387284 (1983-06-01), Nicholas et al.
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patent: 4622449 (1986-11-01), Inoue
patent: 4755651 (1988-07-01), Tsutsui et al.
patent: 4952767 (1990-08-01), Uemoto et al.
patent: 4996762 (1991-03-01), Takayama

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