Method and apparatus for impulse generator for electroerosive ma

Details Method and apparatus for impulse generator for electroerosive ma Method and apparatus for impulse generator for electroerosive ma

1995-08-11

1999-02-23

Evans, Geoffrey S.

Electric heating

Metal heating

Cutting or disintegrating

B23H 102

Patent

active

058747036

ABSTRACT:
A method and apparatus for electroerosive machining (i.e. electric discharge machining) of workpieces is accomplished by supplying pulses of varying polarity to the gap between an electrode and a workpiece. Instead of a pause between pulses of the same polarity, the pulse generator inserts a pulse of reverse polarity whose duration is selected so that removal is at a maximum rate and wear of the electrode is still permissible. The reverse polarity pulses themselves cause machining of the workpiece. A fuzzy logic controller is used to optimize the pulse duration of successive pulses.

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