Wire discharge-machining apparatus with parallel cutting wires
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United States of America Patent
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May 9, 2017
Grant Date -
Aug 20, 2015
app pub date -
May 1, 2015
filing date -
Jun 16, 2008
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Abstract
A wire machining method includes: a wire electrode set as cutting wires provided in parallel with a distance between the cutting wires of which a predetermined regional part faces a workpiece; a machining power source that generates a pulse-shaped machining voltage; and plural feeder units that are electrically connected to the plural cutting wires respectively of the wire electrode and supply the machining voltage between the cutting wires and the workpiece respectively. In the parallel cutting wires, the feeder units are arranged such that a direction of a current passed to at least a part of the cutting wires becomes a direction different from a direction of a current passed to other cutting wires.
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