I am welding some 303 stainless with argon and only after a minute the tungsten gets a deposit on it as shown in the image. The arc gets weird and I have to re-grind it. Any idea what is going on and how to prevent it?
I REALLY like my Jazzy 10 lenses from Furick. Great coverage and the body size is a good standoff, however they may be a little more fragile. I've yet to break one, but they just look more fragile than a traditional setup.Well, figured it out. Welding the 304 did help, but that was not entirely it. It was the lens. The lens had some accumulation of something around the center copper bushing, but the screen looked fine and did pass gas. But it must have been either contaminated or partially blocked and causing some air to mix with the argon. Welds look great now, bright and shiny and the tungsten stays sharp with no buildup.
So now the question is, is there lenses with improved flow or whatever that is better than the ones I am using?
I've had great luck with some E3s from the Airgas brand Radnor.After using ceriated tungstens for a while, I was given some thoriated. I have found them to be MUCH more tolerant of contamination. I'm just not that steady, so it makes a big difference. More time welding, less time sharpening.
the ones from CK work well with the clear cup also. just stuck to a number 6 glass cup or alumina in a couple sizes. helped smooth out the gas flow.I REALLY like my Jazzy 10 lenses from Furick. Great coverage and the body size is a good standoff, however they may be a little more fragile. I've yet to break one, but they just look more fragile than a traditional setup.