Hi all! My husband has a question about tig welding aluminium. Here it is: We have a brand new lincoln electric 185 tig welder at work. I need to weld 1/16 inch aluminium boxes together. I can do the butt joints, but I'm having trouble with the inside corners, and I have to do it from the inside, not the outside. Do you have any suggestions? I've tried different settings, and still I can't get the weld to pool on both sides evenly. What setting should I start with? I'm using the 1/16 inch tungston rod, a 15 gas flow, and the machine has a thing where you can either go from automatic cleaning to welding. So far I've found that it's a little easier to leave it on more cleaning and less penetrating. I've tried it anywhere from 50 amps to 80 amps, and I just need suggestions on where to start. Thanks!