Flux core arc welding was introduced in the 1950’s. Technically the introduction of this process was not new. It was just a new type of an electrode that can be used on a MIG welding machine. Flux cored arc welding is a process similar to MIG welding. Both processes using continues wire feeds, and similar equipment. The power supply for a FCAW, and a MIG welder, are the same machine. They are both considered semi automatic processes, and have a very high production rate.
Process features of flux-cored arc welding
Advantages of process features of flux-cored arc welding:
Because it combines the productivity of continuous welding with the benefits of having a flux present, the FCAW process has several advantages relative to other welding processes. These advantages include:
- high deposition rates, especially for out-of-position welding
- less operator skill required than for gas-metal arc welding (GMAW)
- simpler and more adaptable than submerged arc welding (saw)
- deeper penetration than shielded metal arc welding (SMAW)
- more tolerant of rust and mill scale than GMAW
Disadvantages of process features of flux-cored arc welding:
Disadvantages of the FCAW process include:
- slag must be removed from the weld and disposed of
- more smoke and fume are produced in FCAW than in the GMAW and saw processes
- fume extraction is generally required
- equipment is more complex and much less portable than SMAW