Importance

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Abstract

In an apparatus for processing a broken wire electrode in a wire-cut electric discharge machine for cutting a workpiece into a desired contour by electric discharge machining while the workpiece is transported relative to a wire electrode on the basis of machining command data, there is disclosed an apparatus for processing a broken wire electrode including a memory (CPX, CPY) for storing the position at which the wire electrode broke, an operator's panel with jog buttons (PJX, MJX, PJY, MJY) for generating a movement command following wire breakage to retract the workpiece from the wire breakage position (Xc, Yc), motors and drive circuitry (PD, SX, SY, MX, MY) for transporting the workpiece to a predetermined position on the basis of command, and a fitted point return button (Br) on the operator's panel for generating a signal to position the workpiece at the wire breakage position after the wire electrode is rethreaded in a wire transfer system.

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First Claim