dirty metal or no sheilding gas, cause porosity. And you got it, porosity=weak welds.

Great man, this is a huge improvment. Keep practicing, look like u got a little bit a porosity in a couple beads but no biggie. Nice job!

:shock: , :o , wow, this is a huge improvement, i like where this is going. Well first off i would say, lose the auto darking helmet, go to a welding supply and pick up a cheap soild shade #10, and i would go ahead and buy a shade less and a shade more, just to see what you like better, your already...

Not a problem man, like to help anyone out who has trouble with welding, i set my mig to about 15-20 cfh.

bubble gum, it's ok man, not everyone is a pro right off the bat. First thing, get a new ground clamp. I don't care if you just bought the welder 3 days ago, get a new ground. Not some cheap one either, get an old school ground clamp. Start with trying to weld with smaller pieces, your just wasting ...

If I was you I would get the helium and save your self alot of money. I think your little tig would work fine. As long as your not trying to fire up on a 1" piece of aluminum, you should be fine. Just remember to clean,clean,clean and one more thing, make sure you get a stainless steel brush, j...

:o Yeah I said it, and it fuckin works, you can weld so must faster, BUT! you have to use helium for shielding and you gotta clean off the oxides before you weld, don't use a regualr grinding wheel, the fibers will get stuck in the aluminum and it will be a bitch to weld. i use a flap disc, then i w...

Hi all, this is my first post. Just thought I would try this out. If your looking for better looking mig welds, try this out next time your under the hood. Next time your running a bead with mig. Instead of just lighting up and running straight and pulling or pushing the puddle along. And please don...