How To Weld Stainless Steel And Copper. You should try gas backing the outside when you weld the inside. People also ask can you mig weld copper.
Little more involved than doing a torch braze joint but it looks a lot better and you end up with a cleaner product. The copper to stainless steel welding was done without filler metal using a DC current of 80 A. Welding stainless to copper.
Concentrate your heat on the copper and drag your pool to the stainless.
These metals are not metallurgically compatible for fusion welding. The one u already welded try to wire brush it with a stainles steel brush clean. The best option for welding steel to copper is actually a brazing technique since the melting points of steel and silicon bronze the required filler metal are so disparate. An important aspect of welding stainless steel to copper is the physical design of the joint.