heinz57
Welder, mig, tig, mma, fcaw! God save the King!
- Messages
- 118
- Location
- Bristol, South West
Iv'e been welding numerous practice pieces at college and my instructor says
that for 8mm mild steel v groove flat pieces this can be done with 12 volts and the wire speed set accordingly (by him). I don't disagree with him but I don't seem to be getting complete penetration underneath the open root (2.5mm) no matter how slow I move. The first couple of inches are ok (the fraction of the work that hangs off the work bench) but the rest of the weld just does not get through on sections this thick. Part of me thinks that the bench is acting as a heat sink and another part of me thinks I need to go from globular to spray? Anyone got any thoughts?
that for 8mm mild steel v groove flat pieces this can be done with 12 volts and the wire speed set accordingly (by him). I don't disagree with him but I don't seem to be getting complete penetration underneath the open root (2.5mm) no matter how slow I move. The first couple of inches are ok (the fraction of the work that hangs off the work bench) but the rest of the weld just does not get through on sections this thick. Part of me thinks that the bench is acting as a heat sink and another part of me thinks I need to go from globular to spray? Anyone got any thoughts?