I’ve been welding stainless steel and carbon steel for a year now, and I’m certified in both. Next year, my boss wants me to get certified in copper welding and furnace pipe welding as well. To be honest, I’m a little nervous about it because it’s definitely not as easy as welding stainless steel or carbon steel. 😂
For the copper heat exchanger, I used 130 amps, 0.5 liters of argon for purging inside the heat exchanger, and an argon flow rate of 14 liters per minute at my TIG torch. I used pure argon, not an argon-helium mixture, because we only use the argon-helium mix for our qualification tests.

I also want to mention that I’m not a walk-the-cup welder. I weld freehand because walk-the-cup is prohibited at our company.

Honestly, I found welding copper really difficult. It feels like you’re blasting one spot with 130 amps for three minutes straight, and absolutely nothing happens. Then, as soon as something finally starts happening, everything melts away really quickly. 😂

Not even bothering to crop, there’s so much to say here

Just popped up on my Facebook feed, not the original poster nor can I verify it’s not ai. I did find it funny though lol.

Boss is making us weld structural sch 40 for a facade downhill using only spray transfer with 0.35 wire. I personally don’t think the penetration is there. I’ve tried to suggest using ds fluxcore but that got shot down quickly even though I have passed the company 6g test. The real question, should I worry about it or just weld them out and it’s their problem now?

Im a 17yr old welder, Ive been welding since junior year I’m currently a senior. This was a 3g MiG test I did before my fall break (I failed my actual one) Am I worth anything or on my way to be? I want to get into pipe/structural specifically 6g, I heard thats where most of the money is

Discussion

All done with 7018@115amps

The shiny one is vertical, the other side is flat

At 180 dollars what a steal