FCAW – Understand what Flux Cored Arc welding is
If you think arc welding flux cored is exotic! This is absolutely wrong! The reality is that the flux cored arc welding process is nothing more than a different welding wire used in a MIG welder. What changes is the type of shielding. As well as the name of the States, a flux core, and that's what the welding wire has.
The difference between FCAW and MIG welding is a flux cored wire is hollow and is filled with a stream that produces a slag to protect the weld. What this does is help the weld wire faster and prevents the air from contaminating the weld. MIG welding wire is solid and requires an external bottle of shielding gas to protect the weld area.
Flux cored arc welding has two types of wires or types of shielding. First double shielding, a combination of flow on the wire and an external shielding gas. This is used to obtain a dual shielding for the weld area from the air. The second is the internal shielding or auto protection. Internal shield is a trademark and both terms mean the flow is sufficient to protect the weld of any air that could contaminate the weld.
What does FCAW so important for defense contractors is the amount of solder which can deposit in an hour. When comparing MIG welding for FCAW welding deposit rate per hour has a huge gap. Flux cored arc welding can easily deposit three times the amount of weld, then, MIG welding by time! At the top of the weld deposition rate, the FCAW process can weld in windy conditions and still produce high quality welds.
Originally published in Ezine, automatically translated to Portuguese
Source for David Zielinski