[jamesbmx]

I have another question for the other fellow tig welders, I'm welding bicycle 4130 chromoly tubing (.035-.049) using er70s-2 .045 rod. eastwood tig 200 welder no pulse is set at 50 amps. w/ foot pedal. torch it a 9 with gas lens, tungsten 3/32 2% thoriated. My welds look pretty good but I'm getting too much burn through. How do I control the burn through?

[RedIron881]

I'd try going down to a .035 wire. If the wire is too thick you have to wait around a bit longer than needed just to melt the wire. Also, might want to turn your amps up a bit so you can weld a little faster with the extra heat. Want to get in and get out as fast as you can. That has always helped me with burn through problems.

[pro mod steve]

that tungsten seems huge for the amps try a .o40 goob to 80 amps dc if i remember right. I always use the smallest tungsten i can to help pinpoint the arc.