help with flux core settings

what gas replaces flux in MIG welding?


For most applications , its 75/25 argon/co2

straight co2 can also be used but its too hot for thin auto body type work.

for heavier duty machines, sometimes gases like 90/10 argon/co2 or 98/2 argon/oxygen are used for really hot mig welding that is called spray transfer.

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