Search anything about welding with images in this website.
How To Weld Aluminium Without Gas. In flux-cored welding a hollow wire is used which has flux inside. You can choose aluminum to MIG weld with Self-Shielded Flux-Cored Arc Welding FCAW-S wires.
You may also use a strong soap such as Oil Eater CleanerDegreaser. You can weld on Aluminum cans using a 116 tungsten electrode on your dynasty 200. Yes aluminum can be welded without gas in a vacuum chamber.
This can also be done with a strong alkaline or acid.
Laser welding is also a good option. The tool is then moved through the interface and the frictional heat causes the material to heat and soften. Use a stainless steel wire brush used exclusively for aluminum to remove surface oxides. When MIG Welding Aluminum.