TIG or MIG for Aluminium?

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tHIS QUESTION IS NOT THAT DIFFICULT.
It all depends on where and what you are doing. Tig can be used on thick sections with the right gases and a trail gas. You can also use tig in the dcst
setting only when the material is very clean.
Mig can be used in the same way on thick and thin.
1. where are you using it. is it production appearance, strength, both.

2. Some times I tack sections with tig then do a full penn with mig. Now what about the alloy that you are welding. The filler wire will make a differance. gas coverage. are you in the elements or are you in a shop where there is no wind or obstructions to mess with you.

To get a better under standing of aluminum check out my web sight in the auto and boat section most of the boat was welded with mig as it was hot and durty aluminum. no water tight areas only a few. the sealing of the water tight area around the engine was water tight first pass with tig then three stringers with mig. Ut ok it wasn't easy.

www.mrrpmwelding.net

Robert