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tig electrode contamination question

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  • tig electrode contamination question

    Hello newbie here, my 3/32 electrode is turning black where the electrode is held by the collet. Is this normal? I'm running argon at 15cfh. Any tips would be greatly appreciated.

    Thanks,
    Thomas

  • #2
    That's a sign that your post flow is too low. Mine works at 6 seconds for 3/32" tungsten and the smalller pieces i weld.
    RETIRED desk jockey.

    Hobby weldor with a little training.

    Craftsman O/A---Flat, Vert, Ovhd, Horz.

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    • #3
      Or you are waving it about right after the weld is done and air is getting to it when it is still red

      G

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