Learning How To Make Tig Lay Weld
Lay Wire Tig Welding Technique
I remember that sometimes I'd use my torch cup to brace the torch at the right distance. Ya' gotta pre-set your electrode at the right height, which'll be dependent on the type of weld (fillet, butt, whatever...) and your torch angle. Take your time doing that, along with setting up your work and your body position properly.
The patience during the set up pays off when you're learning. If you set up the torch so you can use it as a brace, it's one less thing to manage, and you can concentrate on the torch speed, angle, and your filler rod aim/rhythm/angle. You'll find that natural rhythm of welding aluminum eventually. It's a bad ass way of welding.
I ground a 35 degree bevel on each piece so I could have groove to fill in that would work ok with lay wire welding.For the root pass,I gapped it 3/32" . I used 1/16" er70s-2 filler rod for the root pass ( i keyholed and dipped the root).
To me, for most welding that I did, nothing beats TIG, unless you're sensitive to its naturally lower deposition rate. It's versatility and weld quality was awesome (provided you weren't exceeding the technique's and machine's capabilities), not to mention it looked fantastic.