[Zedn]

I have decided that it is time i added aluminium welding to my skills. I spent about half an hour tonight playing around with my mig on 1.6mm and 3mm Al. I managed to get a pretty good result once i figured you need a fast wire speed and move quickly.

Im wondering if anyone is experienced with mig welding aluminium and can give me any pointers for spot welding and also reducing build up at the start of the weld.

When i try to tack the piece in place, the tack is really messy and dirty and doesnt flow. Once i start welding, its perfect after about 20mm, but the first bit is a big clump that doesnt penatrate.

I intend to spend a few hours over the weekend to get the hang of it but thought i would get some pointers first.

Buying an AC tig is not an option.