I have a Murex Tradestig 180 AC/DC TiG welder which I use for mainly repair work, building shafts up broken castings etc but nothing critical.
Recently it has developed a fault on the DC side and has no power.
The AC side seems OK and it could be the rectifier bank.
Needing to build a run of stainless up on a worn shaft seal the other day I tried it on AC and to be honest couldn't see a difference between that and the correct DC
So the answer is can I weld stainless on AC for non critical parts ?
I may repair this welder but I'm holding fire as I may be able to get a 350 amp AC / DC set quite reasonable.