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WIRE ELECTRIC DISCHARGE MACHINING DEVICE AND METHOD

  • US 20150231716A1
  • Filed: 12/10/2012
  • Published: 08/20/2015
  • Est. Priority Date: 12/09/2011
  • Status: Active Grant
First Claim
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1. A wire electric discharge machining device that starts machining of a workpiece by generating an electric discharge in a machining gap formed between the workpiece and a wire electrode threaded through a start hole in the workpiece, the wire electric discharge machining device comprising:

  • a tension control device controlling tension of the wire electrode to be maintained at a set value;

    a short circuit detector detecting a short circuit between the wire electrode and the workpiece; and

    a short circuit termination system reducing the tension of the wire electrode and vibrating the wire electrode to terminate the short circuit when the short circuit detector has detected the short circuit.

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