SAW stands for?

• A. Submerged Arc Welding
• B. Shielded Arc Welding
• C. Surface Arc Welding
• D. Submerged Aluminum Welding

Answer: (A)

SAW is Submerged Arc Welding, a process where the arc is buried beneath a bed of granular flux. That flux blankets and shields the weld, so there’s no need for external shielding gas, and as it melts it also forms slag that protects the weld bead and helps slag flow and impurity control. This setup allows high current, deep penetration, and very high deposition rates, making it ideal for long, thick welds in automated or semi-automatic fabrication. It’s commonly used for ferrous metals like carbon and alloy steels, as well as stainless steels, and is less typical for aluminum, which is usually welded by other processes such as GTAW or GMAW. The other options describe different terms that aren’t standard for SAW—Shielded Arc Welding refers to SMAW, and Surface Arc Welding or Submerged Aluminum Welding aren’t recognized SAW processes.