muddstopper
Veteran Member
I am wanting to try to tig weld some copper pipe. It will be polished so i dont want to use anything like silver solder, or any of the other lead free solders or the phosphorous bronze rods. I am sort of new to tig and have been searching the internet for videos. What I have learned so far is that it should be done DCEN using de=oxyenated filler rods and pretty high heat. But no one seems to give anything as to a proper starting point for how much amperage to run. Pipe will be 3in type L pumbing pipe. Exact thickness is around 16gauge. Have to go back and look again to make sure exact thickness. Anyways, for those that have experience in tig welding copper, I could use a few tips on how to start. I have a lincoln 250/250 amp stick tig machine with foot controls and plenty of 100%argon for a gas. I wil be practicing on 1/2copper tube before I try the expensive 3in pipe.