Hi: I am modifying a part of a food processor to improve performance for a rebuilder. I am a machine and fab shop.
When fixtured and held in position I can fusion weld without filler to save clean up time. No problem -3/32 gas lens, beautiful weld for first 1/2 to 3/4 of inch around the 2 1/2 " diameter, then the arc turns bright yellow nd the finish looks burned. tried less amperage 32 amps. tried more gas coverage still does it.
Anybody got a direction to go to improve it. The first part of the weld takes hardly any cleanup to polish, The affected zone is a PIA. requiring sanding and much more time. Wayne MItchell CMW Enterprises, Near San Diego CA Many thanks for any help.