What is the advantage of long electrical stick-out found in FCAW-SS welding?

• A. Increased deposition rates
• B. Lower heat input
• C. Improved penetration control
• D. Reduced spatter

Answer: (A)

Longer stick-out lengthens the arc, which raises the arc voltage to maintain that longer arc. In FCAW-SS, this extra voltage and heat input causes more of the filler metal in the electrode to melt and transfer into the weld per unit time. The result is a higher deposition rate, meaning more metal is deposited faster to build up the weld. This is the practical advantage you’d notice when welding stainless steel with a flux-cored wire. The other effects—such as lower heat input or better penetration control—aren’t the primary benefit of extending stick-out; in fact, heat input typically increases with a longer arc, and penetration and spatter depend on many factors beyond stick-out.