You will need to get adequate power to the vessel. You know that of course. If you can clean the oxide off with a light sanding then wire brush the surfaces where you will weld using a stainless brush on a small angle grinder. High humidity ( hydrogen) plays havoc with aluminum welding. It might be prudent to preheat the areas with radiant heaters or at least warm up the plating with a small torch before starting to weld. You only want it warm enough so that there is no residual moisture on the material. You will have to rig up tarps for a windbreak. That is not a big problem. Randy
6061 aluminum and weld it to a guy's boat. This boat is too big to trailer to a shop, well, not in any practical way anyway. That means welding it outside, in the wind.
How the heck do you weld aluminum outside in the wind? I have a Millermatic
- Miller Spoolmatic 30A, that's the only way I know how to weld aluminum.