So I am BRAND NEW to metal smithing, as in just yesterday I pulled out my fathers anvil, got a good hot fire going and played around with some old scrap copper pipe. I was wondering, how do you get copper to fuse to itself when you fold it over? I know with iron they would sprinkle something like borax, but what about copper? (I realize my fire was probably no where near hot enough) Just looking for some advice, I had a blast playing around with it, made a neat cuff thats about 2 inches wide and heavy as hell lol.