Tig welding aluminum in the 3G position, the importance of cleaning, hand positions, wire feeding technique, arc shots, and more covered this week. Cleaning the joint edge with a clean file, carbide burr, or something that does not leave a residue or smear oxides is important to get the best results and smoothest penetration. I showed what happens when you dont use the best cleaning practices and also , how badly I needed practice when I started making this video. But I brought you along the pro