Why Cold Shut Welding Happens and How to Stop It
Finding a cold shut welding defect in your latest project is enough to ruin anyone's day, especially when you think you've done everything right. It's one of those annoying issues that looks like a crack but is actually a failure of the metal to fuse together properly. If you've ever looked at a finished bead and noticed a distinct line where the molten metal just sort of sat on top of the base material instead of becoming part of it, you've dealt with a cold shut—or what many welders call a "cold lap." ...