Flux Cored Arc Welding - Definition and Overview

Flux-Cored Arc Welding (FCAW) is a common arc welding process. FCAW requires a continuously fed consumable tubular electrode containing a flux. The use of an externally supplied shielding gas is optional creating the primary process variation:

• FCAW–S (Self Shielded or “open-arc”)
• FCAW–G (Gas Shielded)

FCAW Key Process Variables

• Wire Feed Speed (and current)
• Arc Voltage
• Electrode Extension
• Travel Speed
• Electrode Angles
• Electrode Wire Type
• Shielding Gas Composition (if required)

FCAW Applications

• FCAW may be an “all-position” process with the right filler metals
• A high-deposition rate process in the 1G/1F/2F
• Some “high-speed” (e.g., automotive applications)

Used on the following alloys:

• Mild and low alloy steels
• Stainless steels
• Some high nickel alloys
• Some wearfacing/surfacing alloys

References and Further Reading

American Welding Society, Welding Handbook, Vol 2 (9th ed.)

See also

• Gas Metal Arc Welding or MIG welding
• Gas Tungsten Arc Welding or TIG welding
• Shielded Metal Arc Welding or stick welding