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This video shows TIG welding several different alloys. Carbon Steel, 4130, Stainless, and Aluminum. Arc Length is key
5F position means the axis of the round member runs horizontal.
This video shows technique and hand position to maintain a good mig gun angle
In this video...you will see settings, tips, techniques for TIG welding a vertical 3F tee joint - carbon steel 11ga
The ABC's of welding
Always be comfortable