I have tried many settings and still get a problem with the tip of the tungsten. The big improvement was to go from 2% Thoriated to WZ8 Zirconiated. Not only did the tip problem improve, so did the welds. I have the gas flow set to 10. I have tried pointed and rounded tip. The rounded gives the best...

Hello Everyone,

I have a new TIG welder (UNIMIG 200 AC/CD) and it has many knobs to change settings. I am welding Aluminium and the tungsten is getting small balls on the tip. What could be causing this.

Ray.

Hello Everyone, I have used an old Miller TIG welder for years. I just replaced it with a new UNIMIG 200 AC/DC TIG. The old Miller had next to no settings. The UNIMIG has knobs everywhere. I am having trouble with the tip of the tungsten. I am unsure what is wrong. With the old Miller I got a round ...