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  • New Miller Syncrowave 200. Having Issues

    First off a little background on myself. I work as a full time maintenace technician for the company that supply the Ford F250, 350, 550 truck frames. I have had numerous welding classes and am very proficient with Stick and MIG welding. I have also had TIG welding instruction. Though I feel I have been more self taught as I practiced over the last few years. I also run a Small Turbo fabrication shop. I build custome turbo setup for late modles drag cars.

    Recently my Econtig died on me. I decided to step up to a brand new Syncrowave 200 machine. I am having some issues with it. It seems as I cant get it to hold a steady arc for the life of me. It usually ends up dulling the tungsten. I have it set up DCEN, 50 amps, Med start, Pulsing turned off.

    It seems that after I start my arc that it comes in and out. I have a fairly steady hand and have been using the TIG process with the Econotig since early 05. I am lost as to weather I have my machine setup wrong or I am missing something simple.

    I weld maily 16 gauge Mild and Stainless steel tube. Ocaasioanlly I will weld soem 16-18 gauge aluminum.

    Any help or suggestions is greatly appreciated.

    Josh

    Here are a couple pics. I am using an 75%/25% Argon/Carbon Diaoxide mix.

    Josh Jenkins
    270-303-0531
    www.KentuckyTurboandPerformance.com
    Josh@KentuckyTurboandPerformance.com

  • #2
    Originally posted by Josh @ KYTP View Post
    I am using an 75%/25% Argon/Carbon Diaoxide mix.
    Switch to pure argon. The tungsten will oxidize very quickly (melt/burn) when the CO2 disassociates in the arc.

    For TIG, inert (or is it non-reactive? -- whatever) gasses only. Argon, helium, etc.

    Also, what diameter and type of tungsten are you using? At 50 amps DCEN, 1/16" would be the max, and maybe try switching to .040". If the tungsten doesn't get hot enough, the arc will be hard to maintain.

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    • #3
      I thought the gas might be a problem. Come to think of it the Econtig started gaving my crap when I went to the 75/25.

      I am using the Red tipped tungsten. They are 1/16 dia also.
      Josh Jenkins
      270-303-0531
      www.KentuckyTurboandPerformance.com
      Josh@KentuckyTurboandPerformance.com

      Comment


      • #4
        Pure argon will fix you right up as has been already stated.


        Good luck
        Wheelchair

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        • #5
          Josh,

          As has been recommended, straight Argon is the gas to use. You should be fine with the 1/16 2% Thoriated tungsten (rated 70-150A DCEN). If you continue to have problems, may want to drop down to a .040 tungsten (rated 15-80A DCEN).

          With stainless, I'd also recommend backgassing (purge backside with argon gas) to prevent sugaring.
          Syncrowave 250 DX Tigrunner
          Dynasty 200 DX
          Miller XMT 304 w/714D Feeder & Optima Control
          Miller MM 251 w/Q300 & 30A SG
          Hobart HH187
          Dialarc 250 AC/DC
          Hypertherm PM 600 & 1250
          Wilton 7"x12" bandsaw
          PC Dry Cut Saw, Dewalt Chop Saw
          Milwaukee 8" Metal Cut Saw, Milwaukee Portaband.
          Thermco and Smith (2) Gas Mixers
          More grinders than hands

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          • #6
            I most definatley back purge when doing SS. I will be getting all my Tanks refilled Monday with 100% Argon.
            Thanks for the help Guys.
            Josh Jenkins
            270-303-0531
            www.KentuckyTurboandPerformance.com
            Josh@KentuckyTurboandPerformance.com

            Comment


            • #7
              Thats right

              Originally posted by phila.renewal View Post
              Switch to pure argon. The tungsten will oxidize very quickly (melt/burn) when the CO2 disassociates in the arc.

              For TIG, inert (or is it non-reactive? -- whatever) gasses only. Argon, helium, etc.

              Also, what diameter and type of tungsten are you using? At 50 amps DCEN, 1/16" would be the max, and maybe try switching to .040". If the tungsten doesn't get hot enough, the arc will be hard to maintain.
              He's right.
              Helium though, prepare to empty your $$$wallet, it's available from only one place on this planet. thats a place south of Amarillo, TX. I've driven by there many a time.

              P.S.
              I looked at the photos. I couldn't tell if you cleaned those surfaces. I would use an abrasive cleaning, and then clean with acetone. After solving the gas problem, clean is everything with tig.
              Last edited by r90s; 08-04-2007, 11:04 PM.
              Careful with That Axe, Eugene

              Comment


              • #8
                That is a great machine, just switch to pure Argon and you shouldn't have a problem. C25 is only for MIG

                BTW see you are a GEN III shop, same here. I want to get my hands dirty with some turbo fabrication soon. I already have some 6.0 manifolds laying around as well as Gen III header flanges. I just need to find the time
                J & J Speed Shop
                (716) 830-0506
                www.JandJSpeedShop.com
                Jason@JandJSpeedShop.com

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                • #9
                  Pure Argon fixed everything. Thanks for the help guys.
                  Josh Jenkins
                  270-303-0531
                  www.KentuckyTurboandPerformance.com
                  Josh@KentuckyTurboandPerformance.com

                  Comment


                  • #10
                    Lincoln says to use pure argon for aluminum below 400 amps on a Tig.
                    Lincoln: Eagle 10,000, Weld-Pak HD, Weld-Pak 155, AC-225, LN-25 wirefeeder
                    Miller: Syncrowave 250DX Tigrunner
                    Westinghouse: 400+ amp AC
                    ThermalArc Handy wirefeeder
                    1 Harris, 3 Victor O/A rigs
                    Arcair gouger
                    Too many other power toys to list.

                    Do it right, do it once. And in all things ya get what ya pay for.

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