I got me some aluminum scrap...

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It seems I will need to buy some more aluminum tig rods.Lots of different thicknesses for practice. Oh, and the welds on the rusty shelf are not mine...
Reply:Pretty general, you don't give a lot of information. It sounds like gas coverage to me. Jody Collier has done a number of videos on the subject. Check them out. I would think 15 CFH of argon is a good place to start. Though I've never heard of back purging with aluminum, balling up without wetting is often a question of coverage. Lots of factors can influence gas coverage. I like a gas lens, but recently had a problem with outside corner joints in 16 gauge not providing adequate coverage. Switching to a collet body and #6 cup helped. Too much or too little flow, too much stick out, torch angle too flat, or arc aimed in the wrong point can influence. I find it easier to heat the leading edge of the puddle than ahead of it. It's no fun to grind tungsten, but a short arc length can sometimes solve problems.
Reply:HUH?  Posted to wrong thread?30+ yrs Army Infantry & Field Artillery, 25 yrs agoMiller 350LX Tig Runner TA 210, spool gunLincoln 250/250 IdealArcESAB PCM 500i PlasmaKazoo 30"  vert BSKazoo 9x16 horiz BSClausing 12x24 lathe20T Air Press
Reply:He obviously wanted to reply to my thread here http://weldingweb.com/vbb/showthread.php...-6061-aluminum but got confused and replied to the linked thread (meaning this thread).I will continue on the other thread since it makes no sense continuing here.If a moderator sees this please move WillieB's answer there.Thanks.