motorpsykler
Well-known member
Recently I was modifying a dolly into a welding cart for my oxy/acetylene bottles. I was trying to extend the bottom plate to better support the bottles. It is 1/8 steel about 6" X 12". I attempted to (gas) butt weld a 1.5" piece to the 12" end of it. Of course, it did not work. The 1.5" wide piece cooled quicker that the 6" piece, causing it to crack my welds with a loud POP! I then tried small tacks spread apart 3 inches, allowing everything to cool between each tack, but it didn't help, they still popped. I was able to complete the job by welding 1 X 2" strips to the underside of the bottom plate and just do some 1/2" tack welds in between them. I presume that worked because the lap welds on these strips are stronger and put more weld in a smaller area.
My question after that long-ass set up is, it there a way to complete a butt weld that long(12") on two unequal sized pieces? The weld I did looked really nice, that is, until the POP!
My question after that long-ass set up is, it there a way to complete a butt weld that long(12") on two unequal sized pieces? The weld I did looked really nice, that is, until the POP!