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Electrode for plasma torch with novel assembly method and enhanced heat transfer

  • US 8,633,417 B2
  • Filed: 12/01/2010
  • Issued: 01/21/2014
  • Est. Priority Date: 12/01/2010
  • Status: Active Grant
First Claim
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1. An electrode for a plasma arc torch, the electrode comprising:

  • a generally tubular outer wall;

    an end wall joined to a distal end of the outer wall and supporting an emissive element in a generally central region of the end wall; and

    a protrusion extending from the generally central region of the end wall, the protrusion centrally disposed within the generally tubular outer wall, the protrusion comprising a releasable connection to secure the electrode to the electrode holder,wherein at least one coolant passage is formed between the protrusion and the electrode holder when the electrode is connected with the electrode holder.

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