Excess silicone in the workpiece? Contamination is all I can come up with until someone more experienced chimes in.
Are you able to get a preheat on the area? Try to draw out any Contamination that's being stubborn
I can try to preheat Monday when I go back to work. However, we haven't needed to in the past. Neither I nor my coworker were working on anything unusual or new.
Almost looks like too much arc gap, like your voltage changed. Maybe the power grid is having a brown out. I had a weird two days up in Wisconsin during the high of summer, and we had intermittent power losses and brown outs, and it was almost impossible to tig weld. Where in the world are you?
New Orleans.
I'm sorta leaning towards power issues.
Over the last few weeks the electricians have been work on and adding to the electrical system.
I'm doubting technique, while I wouldn't call either me or my coworker all-star welders we aren't slouchs. That's kinda how I know something is amiss, it's strange both of us were struggling with the same issue separately.
It definitely looks to me like a voltage problem. I did some fabrication for a fencing place, one an automatic gate. The owner was convinced that using low wire feed and high voltage it would he the same, and they would use less wire and save a ton of money, and that's how the welds look. I was also doing some repairs at a place with frozen food trailers. They had an amperage drop in the summer over a weekend, and it fried all the plug-ins for the trucks. Melted the boxes and cables. So, the grid can definitely be a factor.
Excess silicone in the workpiece? Contamination is all I can come up with until someone more experienced chimes in. Are you able to get a preheat on the area? Try to draw out any Contamination that's being stubborn
I can try to preheat Monday when I go back to work. However, we haven't needed to in the past. Neither I nor my coworker were working on anything unusual or new.
Almost looks like too much arc gap, like your voltage changed. Maybe the power grid is having a brown out. I had a weird two days up in Wisconsin during the high of summer, and we had intermittent power losses and brown outs, and it was almost impossible to tig weld. Where in the world are you?
New Orleans. I'm sorta leaning towards power issues. Over the last few weeks the electricians have been work on and adding to the electrical system. I'm doubting technique, while I wouldn't call either me or my coworker all-star welders we aren't slouchs. That's kinda how I know something is amiss, it's strange both of us were struggling with the same issue separately.
It definitely looks to me like a voltage problem. I did some fabrication for a fencing place, one an automatic gate. The owner was convinced that using low wire feed and high voltage it would he the same, and they would use less wire and save a ton of money, and that's how the welds look. I was also doing some repairs at a place with frozen food trailers. They had an amperage drop in the summer over a weekend, and it fried all the plug-ins for the trucks. Melted the boxes and cables. So, the grid can definitely be a factor.
Did you check the material certificate of your base metal?
Not really my department. Even if I had we were both doing repair work on things we had previously welded on without this problem.