TIG Aluminum 3G Butt Joint Full Penetration
I don't think you will find a better video anywhere on a full penetration butt joint on 1/8" (.125") 3.2mm thick aluminum.
Settings matter and they are listed in the video but what is every bit as important as settings is cleaning the sheered edge properly.
A clean dedicated file is a good choice for cleaning the edge for a full penetration weld.
I used a #5 clear cup for this video mostly because it helps me film and see the weld better.
My good friend Brad Goodman often uses a #5 ceramic cup for tig welding his aluminum dog feeders and dog boxes.
I don't always need a clear cup so sometimes I used the pink #5.
Our Ally #5 combo kit has a pink cup along with a clear cup.
We have Ally #5 combo kits for both 17 style torches as well as #9/20 style torches.
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