help flux core overhead

by Travis
(canada)

Hey i was just wanted to get a few tips here. I have to do a fcaw test in the overhead postion for cwb. Was wondering about the heats. Its a .045 wire and will most likely be 75-25 mix. Also was a little worried about burning the edge away and puddle falling out when welding the beveled side of the plate. The gun position should be just slightly forward and have about 1/4 inch stick out right?

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stickout will probably be more like 1/2" for flux core.

I have found this resource very useful to find a starting place for flux core settings.

http://www.millerwelds.com/resources/calculators/mig_flux_amperage_calculator.php


all manufacturers setttings are a little different but since you dont know what kind of wire you will be using, you probably can look up the settings.

copy some settings down on a cheat sheet and put it in your pocket just in case.

the miller settings always seem a little high on wire speed.

also the settings on the miller weld calculator are intended for 2f fillets so you might choose a lower thickness than you will be welding ...but its a good starting point.