WIRE BREAK DETECTING DEVICE FOR WIRE ELECTRIC DISCHARGE MACHINE
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United States of America Patent
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Issued Date -
May 14, 2009
app pub date -
Sep 30, 2008
filing date -
Nov 12, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
In electric discharge machining for intermittently applying voltage pulses between a wire electrode and a workpiece with quiescent periods interposed, test voltage for checking conduction between upper and lower power feeding elements is applied during quiescent periods. When there is no conduction, it is determined that the wire electrode is broken between the upper and lower power feeding elements.
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