How does the flux in a FCAW wire compare to a SMAW electrode, and what does it affect?
A) FCAW has less flux, but the wire is fed into the weld faster so there is more slag on a weld as compared to a SMA weld.
B) Both processes' filler metals have the same amount of flux, but only the FCAW flux gets pushed deeper into the molten weld pool.
C) FCAW wire has a lower flux-to-metal ratio so it is more efficient than SMAW.
D) SMAW filler rods are a lot bigger than FCAW wire, but there is more flux-to-filler metal in the FCAW filler wire.
Correct Answer:
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