[HELP] Learning Tig Welding

[Roadracer_Al]

I'd also point out that truly professional TIG welders are part metalurgist. They will understand the composition and uses of the various rods. In a production setting, the blueprints will (or ought to) have the welds engineered (fillet sizes called out, prep processes specified, pre- and post-heat protocol, rods specified, etc.), but a "job shop" type environment may rely on the knowledge and experience of the welder to choose appropriate processes and materials.