ELECTRIC DISCHARGE MACHINE HAVING WIRE ELECTRODE CUTTING FUNCTION, AND WIRE ELECTRODE CUTTING METHOD
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United States of America Patent
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Issued Date -
Apr 23, 2009
app pub date -
Sep 2, 2008
filing date -
Oct 18, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A wire electric discharge machine and a wire electrode cutting method capable of carrying out a wire electrode cutting process without need for an operator to input information on material or a diameter of a wire electrode. An electric current measuring device measures a value of an electrical current flowing through a wire electrode to which a voltage is applied. An electrical resistance of the wire electrode is detected based on the applied voltage and the measured value of the electrical current. A plurality of cutting conditions predetermined and stored for electrical resistances of different types of wire electrodes. A cutting condition for the wire electrode is determined based on the detected electrical resistance of the wire electrode and the stored plurality of cutting conditions, and the wire electrode is fusion-cut on the thus determined cutting condition.
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