Method and apparatus for spark-erosion machining of a workpiece
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United States of America Patent
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Dec 19, 2017
Grant Date -
Mar 12, 2015
app pub date -
Sep 11, 2014
filing date -
Sep 12, 2013
priority date (Note) -
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Abstract
The invention relates to a method for electrical discharge machining of workpieces by electrical discharge pulses generated by a power module of an electrical discharge machine. The invention is characterized in that firstly the discharge voltage of a number N1 of electrical discharge pulses is acquired and stored, secondly a front discharge voltage (63) is determined out of this amount of N1 acquired discharge voltages and thirdly, the voltage Uhps (64) of the electrical discharge pulses produced by the power module for machining the workpiece (17) is adjusted in function of the determined front discharge voltage (63).
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