Well I am messing around with some titanium tonight for the first time, just running some practice beads on some scrap. The arc is all over the place and I cant seem to get in any more stable. Arc is fine on DC welding steel and on AC welding aluminum. Material and tungsten is clean. Any tips or ideas???

 

Is the material clean as well?

 

^^ what code 4 said. Make sure your material is clean. Also, I don't know what thickness you're trying to weld, but if it is thin, and you're not applying very much current, it will wander, until you step a little harder on the pedal to get the puddle started. I'm not sure if this could be the situation, but hope it might help.

 

Post a pic of the weld.

 

cleaned the materil with a new stainless brush and acetone.

its pretty thin, Its the Factory header from my zx10.

I will snap a few pics the next time I am out in the garage.