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Cracks when TIG welding brass

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  • law2531
    started a topic Cracks when TIG welding brass

    Cracks when TIG welding brass

    I work for a company that builds store fixtures for high end retailers. Our latest project requires us to weld brass. The problem I'm having is, I'm getting a 1/4" to 1/2" crack in my weld where I start. The material is 1" thick brass square bar, and I'm putting a 1/8" deep bevel on my weld joints. I'm using a Dynasty 350, DC current, and silicon bronze rod. The welds are actually turning out pretty nice and not all the welds are cracking. Any suggestions would be appreciated.

  • Dipsomaniac
    Brass is not bronze. Brass has zinc in it and will be difficult for most to even think about the TIG process.

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