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A: I would like to answer your question as a general discussion of flux-cored welding. The American Welding Society (AWS) classifies all tubular electrodes having a flux on the inside as flux-cored wires, and calls it the Flux Cored Arc Welding (FCAW) process. All flux-cored wires have some similar characteristics. These include forming a protective slag over the weld, use a drag angle technique, have the ability to weld out-of-position or flat and horizontal only at higher deposition rates (depending on type of wire), ability to handle contaminants on the plate, etc.
The welding rod is the piece of wire connected to the welding machine. A current is fed through this wire, which helps to join two pieces of metal together firmly. In certain cases â namely SMAW and stick welders â the wires actually melt, becoming part of the weld itself.