In Flux Cored Arc Welding (FCAW) welding wire is fed from a spool. There are many benefits to this welding process but there are also some concerns all of which are listed below.
- Flux Cored Arc Welding (FCAW) is frequently referred to as flux cored welding.
- It is a commonly used high deposition rate welding process that adds the benefits of flux to the welding simplicity of MIG welding.
- Flux cored welding is a semiautomatic welding process.
- Self shielding flux cored arc welding wires are available or gas shielded welding wires may be used.
- Flux cored welding is generally more forgiving than MIG welding.
- Less pre-cleaning may be necessary than MIG welding.
- Excessive contamination must be eliminated.
- Flux cored welding produces a flux that must be removed.
- Flux cored welding has good weld appearance (smooth, uniform welds having good contour).
Flux Cored Welding Benefits
- All position capability.
- Good quality weld metal deposit.
- Higher deposition rates than SMAW.
- Low operator skill required.
- Metallurgical benefits that can be gained from a flux.
Common Flux Cored Welding Concerns
- Weld discontinuities.
- Undercutting.
- Excessive melt-through.
- Incomplete fusion.
- Incomplete joint penetration.
- Porosity.
- Cracks.
- Slag inclusions.
Flux Cored Welding Problems
- Melted contact tip.
- Irregular wire feed.
- Burnback.
- Porosity.
To read the original article please click:
http://www.weldingengineer.com/1flux.htm | 
Article Details