Hello everyone looking for a few answers. I welded for many years when I was younger, stick welding in construction, then later mig welding in industrial. with mig I was used to using volts. This machine has wire speed 1 to 10 and volts 1 to 10. I have measured the volts while welding max 24.5 and a max wire speed measured at 275 ipm. The welder runs very good, but im new to flux core, and that's probably what I will stay with, as im not welding that often. Im running 035 wire my question is 275ipm enough for 24.5 volts. And what ballpark amps would that be at max setting. And if it's not should I step up to 045 wire? and thanks in advance for your help.
jdhacker
Hi 
you're running a MIG like a lot of misled people... back to front. It LOOKS like you should set volts for how hot you want it, and adjust wirespeed to suit, but the actual reality is the other way around... set the wirespeed to suit the job (directly correlating to amps) and adjust the voltage to suit the beadshape, gas type, spatter levels, etc. Then maybe tweak the wirespeed for finetuning.
AMPS gives penetration, ie wirespeed, not voltage. It look me a while to realise this too.
Flux-core takes a whole load less voltage than solid wire, size for size.
Depending entirely on what type of fluxcore wire you're using, 24.5 volts is more than enough for most, all you need is for it to spray-arc. Stuff like Lincoln NR211 really doesn't like high voltage tbh, much better at lower voltages, 21 volts max for that wire size.
See the Lincoln chart for NR211, they have a chart for each type of wire:
https://www.lincolnelectric.com/ass...ble_Flux-CoredWires-Self-Shielded-Innershield-InnershieldNR-211-MP/c3200010.pdf
As for the wirespeed and diameter, it totally depends what thickness steel you're welding... according to the chart about 155 amps from .035. but just like stick welding, you can make it cover a range of thicknesses safely. Up to 8mm thick for my NR211 example, in both .035 and .045.
you're running a MIG like a lot of misled people... back to front. It LOOKS like you should set volts for how hot you want it, and adjust wirespeed to suit, but the actual reality is the other way around... set the wirespeed to suit the job (directly correlating to amps) and adjust the voltage to suit the beadshape, gas type, spatter levels, etc. Then maybe tweak the wirespeed for finetuning.
AMPS gives penetration, ie wirespeed, not voltage. It look me a while to realise this too.
Flux-core takes a whole load less voltage than solid wire, size for size.
Depending entirely on what type of fluxcore wire you're using, 24.5 volts is more than enough for most, all you need is for it to spray-arc. Stuff like Lincoln NR211 really doesn't like high voltage tbh, much better at lower voltages, 21 volts max for that wire size.
See the Lincoln chart for NR211, they have a chart for each type of wire:
https://www.lincolnelectric.com/ass...ble_Flux-CoredWires-Self-Shielded-Innershield-InnershieldNR-211-MP/c3200010.pdf
As for the wirespeed and diameter, it totally depends what thickness steel you're welding... according to the chart about 155 amps from .035. but just like stick welding, you can make it cover a range of thicknesses safely. Up to 8mm thick for my NR211 example, in both .035 and .045.
Thanks for the info, I should have said that better. I meant back in the day whatever the thickness of metal I was working with. I had in memory where to set the volts and wire for amps. the mig's we had displayed in volts by default. you could change it to amps. But it would default back when the machine was powered off. Thanks for a great explanation!
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