wfs differce between hardwire and fluxcored

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as i don't have a great deal of experience with flux-cored wire but have used hard wire for quiet sometime. If all things are equal same machine same whip same .045 wire size and weld size is the same.where i work now we use L56 hardwire from Lincoln and where i am going they mostly use 71m(flux-cored) wire. I passed all the welding test but the guy set the machine. He was almost afraid i was going to break something..lolI remember back in school for my flat flux-core test i was around 28v and 425ipm that seems like alot of wire for hardwire.just trying to get some insight into the flux before i start my new job!Also maybe I'm doing something wrong but i watch guys in the shop set thier machines, like they are blind folded and have no trouble where it takes me a great deal  of time anyone have any tricks?thanks in advance.
Reply:to get to the original question..fluxcore is just that..flux inside the mig wire..hardwire is just that..wire thats only wire therfore you must have gas for shielding.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Don't know how WFS and voltage compare between GMAW and FCAW, but maybe FCAW runs a higher WFS for a given wire diameter, etc., because it is a hollow wire and more feed is needed to equal the deposition of the solid wire.
Reply:also fluxcore negative and solid wire positive electrodes.  I'm not sure if there are exceptions to that rule.
Reply:i was just curious... i find gas shielded flux core so smooth and easy to use compared to hard wire when scale and rust come into play, i clean even new steel before welding. I guess i'm a clean freak!!
Reply:Riley, there most certainly exceptions to that rule.  Most self-shielding flux-core runs on DCEN, but not all.  Most gas shielded flux-cored wires (like the one that steve28 will be using) run on DCEP.  Not always though.  Steve28, An E71 class electrode is a nice all-position wire that can either be run on CO2 or 75%Ar / 25%CO2.  Depending on the machine and the wire, I would say that the settings that you mentioned for flat position are correct.  I also prefer Flux-cored wire to solid wire....even the self-shielding is soooo much nicer if you run it right.
Reply:ya the place i will be working has a fleet of tranports, front end loaders snow-plows all kinds of equipment to repair so flux core and stick is the ticket i think!!
Reply:Originally Posted by weldrwomnRiley, there most certainly exceptions to that rule.  Most self-shielding flux-core runs on DCEN, but not all.  Most gas shielded flux-cored wires (like the one that steve28 will be using) run on DCEP.  Not always though.  Steve28, An E71 class electrode is a nice all-position wire that can either be run on CO2 or 75%Ar / 25%CO2.  Depending on the machine and the wire, I would say that the settings that you mentioned for flat position are correct.  I also prefer Flux-cored wire to solid wire....even the self-shielding is soooo much nicer if you run it right.
Reply:ya argon is a good gas for cleaning... where i work now we use mig mix gold great stuff but where i did my test it was a blueish bottle for the flux-core!
Reply:i have never tryed to run MIG with strait argon, for aluminum maybee but with solid steel wire i always use C-25. and have great results. when i do run flyx it seems like i did run a higher WFS than the sold wire. summer is here, plant a tree for mother earth. if you dont have time or space, sponcer some one else to plant one for you.feel free to shoot me a PM or e-mail me at [email][email protected] i got lots of time.
Reply:ya that is my thought.... the great thing about the welding trade is you never stop learning!