My dad broke his weight belt mold making ingots for me, so I need another mold. I really like 1-2 lbs ingots for my pot, but I think he would like something with a hole in it. I have a mig welder, but I haven't played with it much in the last few years. When I did, I just used flux cored wire.
I think I need a gas (argon?) and aluminum wire. Does anyone weld aluminum and can point me in the right direction?
My two designs are Several pieces of C chanel side by side and a piece of flat stock to hold them together and cap them off. The other is a large say 2x4" piece of C chanel capped at both ends with an aluminum tube sticking up near one end. Typically I see cast pieces so will welded pieces work and will the pipe cause issues releasing?