I've been tig welding on a hobby basis for several years, mainly do 3mm w/s tube for my race cars and light fabrication, rarely do anything much bigger and always try to build in mechanical strength. I'm contemplating narrowing an axle, not done one before and it's a safety critical part. I'm confident in my welding but I struggle to fill bevelled joints without undercutting the sides.
It's 3.25" OD mild steel and 6mm w/s, I figure it will need multiple passes with TIG and I want to limit the amount of heat input so was thinking of a 2mm open root, bevelled edges, TIG root pass, and a second pass with the MIG to fill/cap, just seems an easier way to fill without multiple passes ?
It's 3.25" OD mild steel and 6mm w/s, I figure it will need multiple passes with TIG and I want to limit the amount of heat input so was thinking of a 2mm open root, bevelled edges, TIG root pass, and a second pass with the MIG to fill/cap, just seems an easier way to fill without multiple passes ?