Wire electrode annealing processing method and wire electric discharge machining device
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United States of America Patent
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Aug 30, 2016
Grant Date -
Dec 19, 2013
app pub date -
Nov 14, 2011
filing date -
Nov 19, 2010
priority date (Note) -
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Abstract
Values of a current and a voltage from a heating power supply device that supplies a current to a wire electrode and that heats the wire electrode are measured, a load resistance value is calculated by dividing the voltage value by the current value, a resistance increment of the wire electrode is calculated from an increased amount in the load resistance value with reference to the load resistance value and an estimated resistance value, a temperature rise value of the wire electrode is estimated based on a specific resistance of the wire electrode and a temperature coefficient of the specific resistance, and a state of carrying a current to the wire electrode is controlled based on the temperature rise value.
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