![]() ![]() The basic layout of the equipment used in flux-cored arc welding is same as that in gas metal arc welding. This article discusses a few components of FCAW equipment. The overall equipment for FCAW is simple in construction and easy to understand. The wire is continuously fed by a mechanized wire-feeding arrangement in FCAW. The diagram below illustrates the welding action with FCAW process. ![]() Sometimes an externally supplied shielding gas is also used to supplement the flux shielding. The flux provides shielding to the electric arc. However, since flux is involved, some smoke and spatter are generated, and a layer of slag is formed at the top of solidified weld metal, which has to be removed by the welder. ![]() Also, at high currents, the arc is more smooth and stable in comparison to when high diameter filler wire is used in GMAW. The presence of flux improves arc action, improves deposition efficiency, bead appearance, and mechanical properties of the weld. It is a tubular electrode, with a metal sheath surrounding a column of flux – throughout the length of the wire. As the name suggests, the flux-cored wire is cored with flux. In fact, the only feature that makes it distinct from the GMAW is the flux-cored wire that is used as the filler as well as electrode. Flux-cored arc welding is a variation of gas metal arc welding (GMAW). ![]()
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