Hey,
Nice to see the added follow-up.
I'm no expert, but since I have the same machine, I'll keep giving my input, at least until an old pro comes along. But it looks like it's just some subtle adjustment that would be helpful.
Anyway, I'd drop down to a 1/16" (1.6mm) filler rod.
I'm guessing that you're using a 3/32" tungsten, which seems right for what you're doing.
You could probably ease up on the AC Balance to about 30%.
Cup size of #7 is OK, but I've tended to gravitate to a #6 for what you seem to be doing.
I like the 5356 filler too.
AC Frequency is a matter of preference. I like 100-120 most times, as I like a narrower bead with Squarewave. Triangle wave will narrow it even more, but I'll suggest that you master the Squarewave first. But I do dig the Triangle wave on thin aluminum and at an edge.
Your gas for that cup size and amps could be a problem. The EXT regulator that you received undoubtedly reads in CFH, and about 15 or more CFH is probably about right for those amps and cup size. But, maybe your setting at 11psi/chf is marginally OK if you're using a gas lens.
Now, from what I see in that new first photo, which doesn't look too far off, but with the settings already mentioned, and some subtle adjustment in technique you may have more luck. And I don't know what the wall thickness of that tubing is, but from the amps that you were using and filler too, I'll guess that it's neither very thin nor very thick.
So, I'll suggest that you use the smaller diameter filler rod, use a little more heat, and increase your travel speed, i.e., currently your beads look cold.
And then please let us all hear how that goes. More pictures would be nice too. And how about laying down a few beads on flat plate to demonstrate an ideal outcome for getting your settings, travel speed, and filler timing all worked out satifactorily.
Originally Posted by Gus Nimateck
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It also retains the info better than I do.
