I will post a few pics when i can but I have been playing with most settings - voltage, gas flow, gun angle, travel speed, etc and still can't get a well defined cleaning line on the sides of the weld.
- Using XMT 304, and an older XR15 push pull feeder and gun
- Argon flow - tried anywhere from 40 to 50 cfh
- started at 24V but also tried going down as low as 21V
- Tried adjusting wire speed fast enough not to get too much spatter or too long of a spray / arc cone, but not so fast that it really felt like it was shooting out to fast. Can't easily measure wire speed, as I have it set to a slower run in speed, so the real welding arc speed does not start until I get an arc - I can't just count out 6 sceonds, measure the wire that comes out and multiply by 6 - as this would measure my run in speed only (if you know how I can measure it, please let me know.)
-Had wire speed at around 7 to 8 on the gun control -
- Pushed gun from right to left, trying anything from about 10 degree gun angle to maybe 30 or 40 degrees
- Contact tip recessed about 1/8" behind gas cup
Based on experienced advice here, I did increase wire speed and decrease voltage in order to reduce splatter and have a shorter spary arc cone than earlier practice - so I could see more unmelted wire before it turned to spray, and this worked. Just not getting the cleaning line.
Although my welds need work in other apsects as well, the main thing I was trying to work on today was getting the cleaning line to be more prominent. In a couple of welds there was a somewhat more defined white line, between the edges of the weld and the black soot. Most had little to no white line though.
I realize there are big craters, and the welds are not consistent - I was not trying to fil lcraters today, and was alll over the place with e patterns, c pattens, etc.
If anyone could explain the secret to getting this white line, or at least the factor that lead towards it, I would appreciate it.