TIG Welding

[f350ca]

Tig welding is nice when you don't want to build up a big weld on small parts. With a small gap and plenty of amps you can fuse the parts together to the root with a little filler to make up the gap and chamfer. With the mig I find I need too much wire feed to get the heat to get a good weld. I have an AC/DC unit, they must inject a little high frequency AC on top of the DC, no scratch starts, come close hit the pedal and the arc starts. Nothing nicer than the smell of ozone off the arc when your welding totally clean parts.
On aluminum I find you need the filler to get the two sides of the weld to flow together, I can heat it but till you bring in the rod the sides won't flow together. Didn't know about the hot short part.