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  1. #1
    Join Date
    Apr 2013

    Default Scratch Start TIG with POWCON 300 SS

    trying to TIG 22 gauge sheet metal with POWCON 300 SS (scratch start), lap joint, no filler metal. Cannot control heat, blow-thru.
    Is it possible??

    > 3/32 inch Tungsten electrode
    > weldcraft WP-17V - air cooled
    > Argon gas
    > amp dial turned down to 0-5
    > DCEN Straight polarity

  2. #2
    Join Date
    Jul 2009


    I am not sure about that machine but did you back the sheet with a heat sink to remove excess heat to give time for welding?

    Grip it and Rip it

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