Originally Posted by hmantractors
Hi, 45 on the bevel, less than 1/16" for a land and about 1/8" gap between the pieces. You will never penetrate otherwise. If you do, you are going to have some dog ugly welds.
I was just having a discussion with my pipe welder buddy about this general idea.. I was saying that nothing beats a good tight fit-up if you can penetrate through the material thickness like on .120 wall tubing on a rollcage, but that a properly
gapped set-up is easier to get 100% penetration on with thicker material.
You won't get 100% penetration on most things, and often it's not required, either. There's some give and take, it depends on what's being welded, like if you're welding a bracket on and both sides of the weldment will have weld, then that's just as fine and dandy.
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