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  1. #11
    Join Date
    Mar 2007
    Location
    Deltaville, VA
    Posts
    2,239

    Default

    The copper sheet was used for starting an arc in DC Tig welding. Does not contaminate the tungsten as even steel will. Generally used on machines without a lift-arc feature.

    As has been mentioned, Hi Freq is required for AC Tig welding. Without it (except for the inverters) the arc will extinguish as it passes thru 0 when switching from DC+ to DC-.

  2. #12
    Join Date
    Dec 2007
    Location
    Beech Island South Carolina
    Posts
    11

    Default ALum

    I welded it with a XMT 304 at work with Helium.We didn't have a hight Feak.Which I do at my shop.I got a Syncrowave 250 DX with a watercooled rig.Miller 252,Miller 140 and 2 other machines/ 675 plasma.Fixing to get Trailblazer 302.My coworker is the one who shown me You could use helium.I tried it I really didn't like the way it welded it wasn't as clean like my new Syncrowave 250 DX LOL

  3. #13
    Join Date
    Dec 2007
    Location
    alabama
    Posts
    746

    Default

    I hope after 7 months he figgured it out.
    2, XMT's 350 cc/cv
    1, XMT 350 vs
    1, TRAILBLAZER 302
    1, MILLER DVI
    1, PASSPORT PLUS
    1, DYNASTY 200 DX
    1, MAXSTAR 150 STL
    1, HOBART CHAMP
    1, HF-251 BOX
    1, S-74d
    1, S-75DXA
    2, 12-RC SUITCASES
    2, 30 A spoolguns

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