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  1. #1
    Join Date
    Apr 2013
    Posts
    1

    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
    Location
    Australia
    Posts
    1,031

    Default

    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?

    Ji
    Grip it and Rip it

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