La c-6

admin

Greetings everyone,Perhaps a quick intro - I am a first year apprentice, known in BC as a C-Level... Academic training and approx. 300 hours experience in the field. Enjoying my new job as a welder/fabricator at a local fab shop... except for one part (well, okay two, my foreman can be an arsehole! ) I do not like the metal-core wire we use.Unless a special job calls for something else, every wire feeder in the shop contains LA C-6 (E70C-6M) wire in .045 size. All of our welders are Miller Dimensions with 70 series feeders, with Blueshield 7 gas, which I believe is a 95/5 Ar/CO2 mix. Usual settings are about 28V/325IPM. I have run S-3/S-6 solid wires, T-9 dual shield, and NP-211 self shield (and a bit of aluminum) wires at trade school, but our curriculum didn't mention much about metal-cored wires. Our journeyman gave us 3 days to play with metal core, but that was in December and now I am thrown into the job and don't remember much about it besides it's a push-only wire.Some of the nastiest 2F, 5/16" single-pass beads I have ever made have resulted on important jobs and my foreman has, not surprisingly, torn me a new hole over it. I've had big problems with roll-over and unequal legs, mainly. The whole shop is about to undergo a CWB 1G bend test with metal core... and this is one I can't afford to screw up. I am no newbie to CWB's, I have bent many coupons in trade school and hold a valid 4G SMAW ticket, but I am dreading this one.Any thoughts on settings for the bend test? Any tips for metal core are much appreciated!Regards,Ian