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Wire electrical discharge machining apparatus

  • US 20050145603A1
  • Filed: 08/30/2002
  • Published: 07/07/2005
  • Est. Priority Date: 08/30/2002
  • Status: Active Grant
First Claim
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1. A wire elecrical discharge machining apparatus that machines a workpiece based on a high-frequency voltage applied in an inter-pole gap between a wire electrode and the workpiece, comprising:

  • a direct current voltage applying unit that applies a direct current voltage in the inter-pole gap; and

    a low frequency component detecting unit that detects a low frequency component from a voltage in the inter-pole gap.

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