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Method apparatus for generating multiple sparks for an electrical discharge wire cutting machine

  • US 4,894,504 A
  • Filed: 06/30/1988
  • Issued: 01/16/1990
  • Est. Priority Date: 06/30/1988
  • Status: Expired due to Fees
First Claim
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1. An apparatus for controlling the flow of electrical energy between an electrically conductive piece part and a wire electrode of an electrical discharge wire cutting machine, comprising:

  • a pulse type power supply having first and second leads of opposite polarity, said first lead being electrically connected to said piece part and said second lead having first and second portions connected to said wire electrode at two separate spaced apart locations;

    first and second storage means connected between said first lead line and said first and second portions of said second lead line; and

    ,means for electrically isolating said first and second portions of said second lead line whereby said first and second portions of said second lead line are electrically independent from one another and whereby electrical energy may flow independently through said first and second portions of said second lead line.

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