Welding patch panels

[lakeroadster]

Originally Posted by EZ4U2C

Hey taank,

Try this, find a piece of aluminum 1/4'' thick grind the area behind where you're going to weld. Clamp if you can the aluminum if not hold it tight against the metal. Spot weld in the middle of the area let cool and work your way out. Once it cool pop the aluminum lose. Steel weld won't stick to aluminum. Just a thought it's worked for me many of times

Good suggestion EZ4U2C. I have a piece of copper and a piece of brass that also works well as a removable backer bar.