We began testing this morning. I called Ed Craig for parameters. He basically said to use 100 ipm for each 1/16th of thickness and fine tune from there.
With the 350-P, using Eds' rule of thumb, and 98/2 argon and CO2, I welded a square groove butt on 304L with ER304LSi @ 100 ipm with almost 100% pen @ 30ipm travel speed.
The weld profile was slightly humped up but acceptable. As far as color goes, there was a black color near the weld deposit that was easily removed with a wire brush. The weld had a little discoloration remaining that came off with the very slightest amount of buffing with a wire SS wheel.
My welder, that will be using this pulse machine, wants the rainbow of colors that one can get with stainless GTAW. Is that possible or is the fact that we can clean up the weld area without pickling more important.
His first response to the .045 and the 98/2 was, "I want color and will try anything to get it.
What is the purpose of the arc length control? Ours was set at 50 during our preliminary test.
Thanks for your time once again.
Dennis
To all interestesd,
The welder won and switched back to .035 with 98/2 gas. His welds are superior to those he was able to make with .045. I don't know if it was all size wire or personal prefrence. The long and the short of it is we are pulsing and loving it. Thanks Lawrence and Kix & DaveBoyer for your help. The reason I joined the forum was to be able to get information that I don't have another source for, and to help where my experience is useful.
Thanks
Dennis