Aluminum welding is easier than welding steel. Several methods are used in joining aluminum via welding: mig welding, tig welding and using a stick electrode. MIG welding is a process that will require some post-weld touchups for a presentable finish. Mig welding uses an electrode of continually fed wire forming the base of the welds, which is also shielded by an inert gas or gas mixture. While using aluminum for mig welding, it is considered somewhat messy because you’ll need to use the spray transfer method in which the arc creates a spray of tiny metal beads.

TIG Welding does not require must post-weld clean up and finishing, and is therefore ideally suited to quick and easy welding of aluminum. Rather than using a fed-wire electrode, tig welding uses a permanent tungsten electrode that is not consumed by the welding process. You have to add any filler metal manually, making this process best suited to joints that can be achieved without additional metal.