Not a winner, the two materials won't fuse properly, but instead form intermetallic bonds that are weak.
It's possible to make a brazed joint work, using a silver-based braze alloy. It's possible to purchase an explosively formed tube junction (bimetallic tube coupling) and weld each side of it to the mating material. I think you would be more likely to find aluminum/copper junctions and aluminum/stainless junctions, i.e. making 3 welds to join the tubes.