Thanks for the help! I will get a tank of Argon for the TIG and put the Ar/CO2 back on the MIG. Then I'll try welding some scrap with 1/8" tungsten. What shape works best on the end of the tungsten for this thin material?

Please HELP! I have a Maxstar 200 (DC only) welder and I have an aluminum welding project for my race car. I was really excited to see this posting. I tend to agree with those who said that aluminum can be welded with DC as long as it is cleaned properly. I fabricated an oil pickup (basically a box)...