simple question what is cup walking and why does it do?
also what causes undercut the most in tig welding? i was practising welding some 8mm plate i used a grinder to bevel the edges and had about a 2mm root face and a 1.6mm gap. i was using a 2.4mm tungsten and 2.4 wire. i only did the foot run in tig and MMA to fill them.
also how many passes, rod size and amp would have been best?
also what causes undercut the most in tig welding? i was practising welding some 8mm plate i used a grinder to bevel the edges and had about a 2mm root face and a 1.6mm gap. i was using a 2.4mm tungsten and 2.4 wire. i only did the foot run in tig and MMA to fill them.
also how many passes, rod size and amp would have been best?