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Melting tungstens 150 amps 1/4" 6061

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  • Melting tungstens 150 amps 1/4" 6061

    3/32" Pure Tungsten
    15 cfh
    150 amps
    12 sec pf
    Wire brushed 6061 1/4" plate

    The tungsten tip melts into a big ball (larger than its diameter) instantly when I burst full amps to get a pool going. If I try to hold back, and keep the tip alive, it will never start a pool. I tried adjusting balance, seems to burn up either way.

    I ran out of time, and tungsten, so real quick tried red tip thoriated, it seemed to do 1/4" joints, and hold a tip longer. Should I be using thoriated instead? I have a lot of 90 degree joints, the pure tungsten won't allow me to.

    Any suggestions?

  • #2
    Originally posted by steelmesh View Post
    3/32" Pure Tungsten
    15 cfh
    150 amps
    12 sec pf
    Wire brushed 6061 1/4" plate

    The tungsten tip melts into a big ball (larger than its diameter) instantly when I burst full amps to get a pool going. If I try to hold back, and keep the tip alive, it will never start a pool. I tried adjusting balance, seems to burn up either way.

    I ran out of time, and tungsten, so real quick tried red tip thoriated, it seemed to do 1/4" joints, and hold a tip longer. Should I be using thoriated instead? I have a lot of 90 degree joints, the pure tungsten won't allow me to.

    Any suggestions?
    Yes, some tigs thrive on thoriated. For instance my Dynasty350 and 700 kills it. but my 200 likes it.

    Best of both worlds is 2% lanthanated. Works very well AC and DC.

    But only experimentation will you find the best combination. I gave up on pure in the 90's.

    What tig do you have?
    Nothing welded, Nothing gained

    Miller Dynasty700DX
    3 ea. Miller Dynasty350DX
    Miller Dynasty200DX
    ThermalArc 400 GTSW
    MillerMatic350P
    MillerMatic200 with spoolgun
    MKCobraMig260
    Lincoln SP-170T
    Linde UCC305 (sold 2011)
    Hypertherm 1250
    Hypertherm 800
    PlasmaCam CNC cutter
    Fadal Toolroom CNC Mill
    SiberHegner CNC Mill
    2 ea. Bridgeport
    LeBlond 15" Lathe
    Haberle 18" Cold Saw
    Doringer 14" Cold Saw
    6 foot x 12 foot Mojave granite

    Comment


    • #3
      Originally posted by shovelon View Post
      Yes, some tigs thrive on thoriated. For instance my Dynasty350 and 700 kills it. but my 200 likes it.

      Best of both worlds is 2% lanthanated. Works very well AC and DC.

      But only experimentation will you find the best combination. I gave up on pure in the 90's.

      What tig do you have?
      I am using a Lincoln precision 225.

      Comment


      • #4
        Originally posted by steelmesh View Post
        I am using a Lincoln precision 225.
        Good. I used only 2% thoriated on my Linde tigs for years on both DC and AC. Now if you are the type that has to ball back with DC reverse, I will need to hit you.
        Nothing welded, Nothing gained

        Miller Dynasty700DX
        3 ea. Miller Dynasty350DX
        Miller Dynasty200DX
        ThermalArc 400 GTSW
        MillerMatic350P
        MillerMatic200 with spoolgun
        MKCobraMig260
        Lincoln SP-170T
        Linde UCC305 (sold 2011)
        Hypertherm 1250
        Hypertherm 800
        PlasmaCam CNC cutter
        Fadal Toolroom CNC Mill
        SiberHegner CNC Mill
        2 ea. Bridgeport
        LeBlond 15" Lathe
        Haberle 18" Cold Saw
        Doringer 14" Cold Saw
        6 foot x 12 foot Mojave granite

        Comment


        • #5
          Don't use pure tungsten on a squarwave machine. Pick up ceriated (orange) tungsten and your good to go on AC or DC. Use a modified point for AC (grind to a point 1+1/2 times the diameter then knock just the sharp tip off on the grinder) so the tip doesn't drop into your weld.
          Miller syncrowave 200 runner with coolmate 4
          and wp2025 weldcraft torch
          Miller 125c plasma cutter

          Comment


          • #6
            Thanks for the quick replies, gonna try the ceriated electrode tonight!

            Comment


            • #7
              Originally posted by shovelon View Post
              Good. I used only 2% thoriated on my Linde tigs for years on both DC and AC. Now if you are the type that has to ball back with DC reverse, I will need to hit you.
              I notice that on AC with 2% thoriated on my syncrowave 250 will get alway get little inclusions budding off the side, which kills the arc shape. Really pisses me off because pure just balls up and gives this real wide arc and makes my beads wider then I'd like them to be.

              Is 2% lanthanated is any better?

              Comment


              • #8
                Originally posted by TTnickdizzle View Post
                I notice that on AC with 2% thoriated on my syncrowave 250 will get alway get little inclusions budding off the side, which kills the arc shape. Really pisses me off because pure just balls up and gives this real wide arc and makes my beads wider then I'd like them to be.

                Is 2% lanthanated is any better?
                2% lanthanated is my favorite with my inverter tigs. But I don't know about your square wave tranny.

                2% ceriated is very good on tranny tigs.
                Nothing welded, Nothing gained

                Miller Dynasty700DX
                3 ea. Miller Dynasty350DX
                Miller Dynasty200DX
                ThermalArc 400 GTSW
                MillerMatic350P
                MillerMatic200 with spoolgun
                MKCobraMig260
                Lincoln SP-170T
                Linde UCC305 (sold 2011)
                Hypertherm 1250
                Hypertherm 800
                PlasmaCam CNC cutter
                Fadal Toolroom CNC Mill
                SiberHegner CNC Mill
                2 ea. Bridgeport
                LeBlond 15" Lathe
                Haberle 18" Cold Saw
                Doringer 14" Cold Saw
                6 foot x 12 foot Mojave granite

                Comment


                • #9
                  Step up to a 1/8" tungsten & more amps. What torch are you using? I have used 2% thoriated on Lincoln squarewaves with good results.
                  MM250
                  Trailblazer 250g
                  22a feeder
                  Lincoln ac/dc 225
                  Victor O/A
                  MM200 black face
                  Whitney 30 ton hydraulic punch
                  Lown 1/8x 36" power roller
                  Arco roto-phase model M
                  Vectrax 7x12 band saw
                  Miller spectrum 875
                  30a spoolgun w/wc-24
                  Syncrowave 250
                  RCCS-14

                  Comment


                  • #10
                    I'm with MMW, 1/8" will be much better....., 1/4 inch 6061 takes some amps to work easily, hope this helps....Paul
                    More Spark Today Pleasesigpic

                    Comment

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