Quote:

Maybe you should take a welding course instead of just making assumptions from what you're seeing.

Enough is enough and too much is too much. There is such a thing as too much heat and too much penetration and the result is a weak joint. Done properly there is absolutely no reason to stop and go with a mig weld. If you think you're getting better penetration with that method then you haven't got your unit set up properly. It's as simple as that. As for documentation, how about YOU open ANY welding book and show me where they encourage stop and go mig welding.




The instructor who taught my welding class didn't have a problem with it. But, he was only a AWS/ASME certified welder with 20+ years in the iron workers union.

BTW, changing direction in a zig zag pattern is no different than what i'm talking about as you have to stop to change direction. Maybe I should rephrase. I'm talking about forming a puddle then advance to the far edge of the puddle until the next puddle is formed and then repeating the distance of the bead. If you watch the puddle you can see when it flattens and it's time to advance. I do agree zig zag is only for joints that are wider than optimum.