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Flux-Cored Arc Welding (FCAW)
A wire-feed welding process using a tubular electrode with a flux-filled core. FCAW can be self-shielded or gas-shielded and offers higher deposition rates than solid wire MIG, making it efficient for structural steel and heavier fabrication.
FCAW bridges the gap between the precision of TIG welding and the raw speed of MIG welding, allowing welds to be deposited at rates that approach or exceed 15 pounds per hour in production settings. The flux core provides slag chemistry that cleans the weld pool, reduces spatter compared to some MIG parameters, and improves penetration characteristics when welding thicker materials or out-of-position joints.
Self-shielded FCAW eliminates the need for external shielding gas, making it invaluable for outdoor or windy fabrication environments where gas coverage becomes problematic. Gas-shielded FCAW offers superior weld quality and mechanical properties, making it the preferred choice for structural work requiring certification and weld inspection.
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