Thread: Mig weld bead.

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    Mig weld bead.
    #1
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    Tonight I tried hooking up the gas to my welder for the first time. I am having issues with the bead of the weld staying on top of the metal instead of fusing. With the flux core, I had no problem with the metal fusing together. With the gas, the bead wants to stay on top of the metal. What should I do?
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    Re: Mig weld bead.
    #2
    The Wizard bdkw1's Avatar
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    Flux core is usually done with reverse polarity. Try swapping it and see if it gets better.
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    Re: Mig weld bead.
    #3
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    I already did that. Everything is set up the way it should be. I’m just not getting good fusion at all
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    Re: Mig weld bead.
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    I replied to your other post....
    Marine Veteran Sgt USMC 8151/8541 1992-2000
    Process Improvement Specialist Miller Electric MFG LLC
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    Re: Mig weld bead.
    #5
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    More amperage, turn it up.
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    Re: Mig weld bead.
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    Flux core penetrates pretty well, but it's usually a pretty dirty weld. With gas you need a clean surface to start with, and you might want to try turning your wire speed down. You want to hear more of a buzz and less of a crackle, and keep the nozzle pretty close to the puddle so the gas can do it's job. Wind is bad too, it can blow the gas away.
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