Ok so I started using the TIG on the PM205 and all was going well...
until this happened....
1/4" steel, cleaned weld joint
1/16" 2% Ceriated Tungsten, No.5 cup, 1/8" stick out, 4T torch control
DCEN 140amps, 40% up-slope, 25% down-slope, 4s post flow
about 12lpm 100% argon
After the electrode melted I wasn't too surprised because I was using such a small electrode at 140 amps. But the kicker is that when I looked at the argon pressure and it was at zero, oops!:eek: So the combination of the high amps/small dia. electrode and no shielding gas caused this to happen.
My question is whether the ceramic cup is toast because it has molten steel splattered on it, it didn't crack so is it still ok to use? Can I continue to use the tungsten electrode if I grind the tip back to a point?