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Question about tigging cast AL

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  • #1

    Question about tigging cast AL

    Hi all,
    I got this job of welding a starter mount on a 4wheeler and its cast AL. What filler rod do I need to use? 4043 or 5356? Or is there another filler rod I need to use? Never tigged cast AL before so its new to me. Besides needing cleaned very well as its part of the crankcase. Anything else I need to know about? Going to clean it with brake parts cleaner and SS brush first and some AL cleaner and SS brush the second time. Do I need to grind a small Vee on the parts also?

    Thanks

    Steve
    Dont force it, use a BIGGER hammer.

    Linde VI-252C and Linde wire feeder.
    Hobart Cyberwave 300c.
    HH 140.
    Miller Big 40.
    Lincoln SAE 200J.
    Hobart GR-303.
    Lincoln tombstone welder.
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  • #2
    Depending on how clean the casting is will determine your success.. I always use 4043 (3/32) filler with cast. 1/8 " Tungsten.. Might want to get yourself some Alumix gas for the job or pre-heat with OA and a rosebud....Sounds like a pretty big area your welding to and it will Suck the heat away from the weld joint....Grind a weld prep
    Some people require more attention than others.....Like a LOST DOG and strangers holding out biscuits....

    Dynasty 350
    Hobart Beta Mig 200
    Twenty seven Hammers
    Three Crow Bars
    One English Springer Dog



    A Big Rock

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    • #3
      BC,
      I was thinking that a preheat was in order. As for being clean, do you think that cleaning the way I described will be enough or do I need to do something else? Maybe a little heat and a SS brush before anything else to help "cook" out some of the oil from the crankcase?

      Thanks
      Steve
      Dont force it, use a BIGGER hammer.

      Linde VI-252C and Linde wire feeder.
      Hobart Cyberwave 300c.
      HH 140.
      Miller Big 40.
      Lincoln SAE 200J.
      Hobart GR-303.
      Lincoln tombstone welder.

      Comment

      • #4
        I was kinda thinking about that oil....If you clean with acetone or denatured alcohol that is about as good as your going to get...If you use Alumix I don't think you will have to preheat. I would be able to give you a better answer if I saw the application.
        Some people require more attention than others.....Like a LOST DOG and strangers holding out biscuits....

        Dynasty 350
        Hobart Beta Mig 200
        Twenty seven Hammers
        Three Crow Bars
        One English Springer Dog



        A Big Rock

        Comment

        • #5
          Whats Alumix? Ive never heard of it. Unless its a custom mix, the only thing available around here is Argon. Im going to pick the 4 wheeler hopefully tomorrow

          Steve
          acwd1950
          acwd1950
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          Last edited by acwd1950; 12-07-2008, 10:39 PM.
          Dont force it, use a BIGGER hammer.

          Linde VI-252C and Linde wire feeder.
          Hobart Cyberwave 300c.
          HH 140.
          Miller Big 40.
          Lincoln SAE 200J.
          Hobart GR-303.
          Lincoln tombstone welder.

          Comment

          • #6
            It's a mix of Argon and helium....you have to ask for it, but I'm sure they will know what your talking about....It's not SPACE SCIENCE....LOL
            Some people require more attention than others.....Like a LOST DOG and strangers holding out biscuits....

            Dynasty 350
            Hobart Beta Mig 200
            Twenty seven Hammers
            Three Crow Bars
            One English Springer Dog



            A Big Rock

            Comment

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