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Wire-cut electric discharge machine

  • US 5,233,147 A
  • Filed: 04/23/1992
  • Issued: 08/03/1993
  • Est. Priority Date: 07/01/1991
  • Status: Expired due to Fees
First Claim
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1. A wire-cut electric discharge machine in which machining is carried out in a gap defined by wire electrode and workpiece, comprising:

  • supply electrodes in electrical contact with said wire electrode;

    a working power source providing discharge current to said supply electrodes;

    a voltage detection means for detecting an integrated voltage value between said supply electrodes;

    a current detection means for detecting an integrated current value of said discharge current; and

    a control means for controlling said integrated current detected by said current detection means so as to increase or decrease the value thereof in response to the variation of the feed rate of the workpiece.

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