This document discusses flux-cored arc welding (FCAW), including its classification system, advantages like high deposition rates and deeper penetration compared to shielded metal arc welding, and limitations such as slag removal needs, more smoke and fumes than gas metal arc welding and submerged arc welding, and higher equipment and material costs compared to SMAW. FCAW electrodes are classified based on their minimum ultimate tensile strength and position of use, and the process is governed by AWS specifications on electrode composition and performance.