Power supply device for electrical discharge machining

Details Power supply device for electrical discharge machining Power supply device for electrical discharge machining

1997-03-03

2000-06-27

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

219 6912, 361698, B23H 102, B23H 702

Patent

active

060809531

ABSTRACT:
The power supply device for electrical discharge machining includes circuit component elements for converting a voltage from a power supply to a given pulse voltage which can be supplied to a minute gap between an electrode and a workpiece so that electrical discharge can be generated in the minute gap; a substrate on which the circuit component elements are mounted; a highly thermally conductive metal piece member disposed opposed to the substrate and including a cavity portion therein, the cavity portion being fittable with the circuit component elements or being capable of holding the circuit component therein; and, cooling appratus for cooling heat generated by the circuit component elements and conducted to the metal piece member by use of a machining liquid supplied to the minute gap as a cooling medium.

REFERENCES:
patent: 5028989 (1991-07-01), Naganuma et al.
patent: 5166489 (1992-11-01), Huff, Jr. et al.
patent: 5316077 (1994-05-01), Reichard
patent: 5420753 (1995-05-01), Akamatsu et al.

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