Rader, Fishman & Grauer, PLLC
Process for electric discharge machining and apparatus therefor
There are described a process for electric discharge machining of a work, which uses deionized water containing no rust preventing agent, as working liquid, and an apparatus therefor. The electric discharge machining apparatus additionally has a high-frequency AC applying device, a grounding electrode and a pair of applying electrodes in which are immersed in the deionized water to alternatively apply high-frequency AC voltage to the applying electrodes for decreasing oxidation-reduction potential of the deionized water.
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inventional inventional inventional inventional
Kenichi Kyoko Hideo
Karasawa Suzuki Hayakawa