I did this probably a year or two ago with a Lincoln 175+ mig welder. the 1st pic is a few welds when I first tried it out. never welded aluminum before. the 2nd pic is the second side of this same plate, as you can see they got way better. I numbered them to show the progress I was making. the last pic is of the 5th and 6th welds on that side of the plate. not bad for 5 mins of playing around. just goes to show those who cant afford, and dont have the skill of tig that you can weld aluminum and get quality welds too.