![]() ![]() They are very popular for outdoor welding, as there is no need for an external shielding gas (where the gas can easily be blown away by wind and result in porosity with gas-shielded processes). You can think of the FCAW-S process as a productivity extension of stick (i.e., manual) welding, providing much higher deposition rate capabilities with a semi-automatic process for almost all the same applications as stick electrodes are used. This form of welding is moreover a much more efficient method than MIG welding. FCAW equipment includes a constant voltage power source, wire electrode, wire feeder, welding gun, and, if appropriate, a shielding gas. Yet Flux-Cored Arc Welding can also be operated without shielding gas. deep penetration characteristics and high deposition rates). Flux-Cored Arc Welding uses a similar shielding gas to the MIG process. ![]() The flux ingredients in the core perform multiple functions, which include:ġ) They deoxidize and denitrify the molten metal.Ģ) Forms a protective slag, which also shapes the bead and can hold molten metal out-of-position.ģ) Adds alloying elements to the weld metal to produce desired mechanical properties.Ĥ) Affects welding characteristics (i.e. FCAW-S: Self-shielded, flux-cored wires, are often described as “a stick electrode that is inside out”. Just like covered or stick electrodes, they rely solely on their slag system and the gases produced from chemical reactions in the arc to protect the molten metal from the atmosphere. Brief description: In the last period 40 welders were coded and certified in 2 procedures (SMAW 6G and FCAW 6G). ![]()
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