Power supply device for electrical discharge machining
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 27, 2000
Grant Date -
N/A
app pub date -
Mar 3, 1997
filing date -
Jul 24, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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