TIG welding solid rod?

[jdacus]

Do most of you guys use TIG welding to build your tube frames or still braze it? And if so do you use filler? Just curious because my dad just bought a new TIG welder and i may build a roll bar for my bronco?

[phxguy]

ER70 should do you just fine if it is going to be DOM or mild steel.

[SMR 510RR]

Most of us are brazing just because the cost of tig. I would love to have a nice little tig but I dont have $2k to drop on one. Brazing is usually used on tubing though.

I have been working with some solid rod lately because it is cheaper than tubing and I have been mig welding it. Its actually working well. I did order some .023" wire, havent got it yet, and I am hoping that will help keep the welds a little flatter. I have been chamfering the end of the pieces so the weld has somewhere to go, helps keep the grinding to a minimum.

[Slowkrawl]

My advice is to braze it. If you are using brakeline, it is such a dirty steel that tig usually makes a mess of it. I have used tig to lightly tack pieces in place so I can braze them, but it's a pita.

Also, it would be hard as hell to weld-out a tuber with tig. Braze makes a nice, uniform joint when done correctly and is more than strong enough for what we are doing.

[crawl-o-matic]

tig is over kill. Just get you a 90 amp flux core arc welder and you weld 1/4 tubing (stainless steel, don't use brake line tubing because the metal will burn away) or solid rod of any type (not aluminum, which goes without sayn')