Lincoln Electric Pro-Mig 135--120volt/20amps--Flux core vs. gas for go-kart
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  1. #1

    Lincoln Electric Pro-Mig 135--120volt/20amps--Flux core vs. gas for go-kart

    Hi, I'm pretty new to welding but my kids are determined to build a go-kart so I bought a used Lincoln Electric Pro-mig 135. I've been practicing with both flux core and gas. The go-kart we plan to use will be made of some 1" 11 gauge steel. What I'm wondering is why the suggested setting chart provided doesn't include settings for anything thicker than 14 gauge with gas but it gives settings for flux-core all the way to 1/4inch. Does that mean I cannot use this to weld the 11 gauge steel with gas even if I bevel edges etc? Or can I get away with it? I'd prefer to use the gas if I can. But obviously I want as strong a weld as my meager skills can muster. Thanks for your help. Andrew

  2. #2
    Join Date
    Sep 2013
    Location
    west texas
    Posts
    2,281

    Re: Lincoln Electric Pro-Mig 135--120volt/20amps--Flux core vs. gas for go-kart

    Use CO2 and 0.025 inch L-56 wire.
    That's what I use. I have passed a bend test on a 3/8 plate, with a lot of weld prep and preheating.
    So you have to have grinders and stuff to notch and bevel the pipe.
    old Miller spectrum 625
    Lincoln SP-135 T, CO2+0.025 wire
    Miller model 250 and WP-18V torch
    Craftsman 100amp AC/DC and WP-17V torch
    Century 115-004 HF arc stabilizer
    Home made 4 transformer spot welder
    Home made alternator welder

  3. #3
    Join Date
    Jun 2016
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    Re: Lincoln Electric Pro-Mig 135--120volt/20amps--Flux core vs. gas for go-kart

    I use my tapped Pro Mig 140 almost daily.It's a fine machine. Get a bottle of CO2 and very carefully--- adjust the wire speed for position. Make sure the nozzle and the contact tip are close to flush and make sure you have a HEAVY ground clamp. Grind the spot for the ground and grind the pieces to be mated where you intend to weld them.

  4. #4
    Join Date
    Jun 2016
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    Re: Lincoln Electric Pro-Mig 135--120volt/20amps--Flux core vs. gas for go-kart

    OOOPS. Flux and 110 is a scam. Utter nonsense

  5. #5

    Re: Lincoln Electric Pro-Mig 135--120volt/20amps--Flux core vs. gas for go-kart

    I had a lincoln 110v mig welder that was almost worthless with gas but I could weld decent with flux core wire. Flux core welds hotter.

  6. #6
    Join Date
    Sep 2013
    Location
    west texas
    Posts
    2,281

    Re: Lincoln Electric Pro-Mig 135--120volt/20amps--Flux core vs. gas for go-kart

    My Lincoln welds great with CO2 and 0.025 L-56 wire.
    I passed a bend test on a 3/8 plate. Just to prove it could be done.
    old Miller spectrum 625
    Lincoln SP-135 T, CO2+0.025 wire
    Miller model 250 and WP-18V torch
    Craftsman 100amp AC/DC and WP-17V torch
    Century 115-004 HF arc stabilizer
    Home made 4 transformer spot welder
    Home made alternator welder

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