check this out... http://www.mig-welding.co.uk/gasless-mig.htmCan someone explain why you would change the polarity of the electrode . looked though instructions on my welder and it stated that i should set it up DCEP
Totally brilliant Al, gonna print that one out as it's really nice and concise. Thanks!I researched this
If you dont bother with the whys and wherefores
MMA
DC+ most common, best pen
DC- only when there is a chance of burn thro
MIG
DC+ always
TIG
DC- always
AC for Aluminium
FCW
DC- for gasless
DC+ for gas shielded
OK there are obscure applications that can prove me wrong but this fits 99% of the time.
MMA
DC+ most common, best pen
DC- only when there is a chance of burn thro
MIG
DC+ always
TIG
DC- always
AC for Aluminium
FCW
DC- for gasless
DC+ for gas shielded