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When and Why choose the Solid welding wire or Flux cored welding wire?
You may confused when choosing the welding wire for your weld work. Solid welding wire or Flux cored welding wire which is better?
Today I can tell you both of the wire can create good weld work if you use them properly. However there are some differences or consideration should be bear in mind when you choose them for your GMAW welding work:
Factors should to consider
Solid Welding wire
Gas shielded Flux cored welding wire (FCAW wire)
External shielded Gas
It is necessary. Usually, 100% CO2 or Co2/Ar2 blended
It is necessary. Usually, 100% CO2 or Co2/Ar2 blended.
Thickness of the base metal
Very good for thin plate. That is why the dia. of the wire start from 0.8MM
Can weld thicker plate. So, the flux cored welding wire usually start from 1.2MM
Condition of the base metal
Can only weld clean metal.
Can weld the base metal has some scales. As the flux inside the wire has deoxidizer.
By short-circuit transfer, the deposition rate is low
Has higher deposition rate.
Generally, the strength of a weld deposit made with a solid GMAW wire is limited to the strength of the electrode.
Because slagging agents and other components are added to their cores, FCAW Wire can achieve good mechanical properties
Silicon islands can be deposited during GMAW that might need to be removed before painting or coating. However, GMAW with solid wire generally is a clean process that requires minimal postweld operations..
FCAW wire requires the most labor-intensive cleanup because of the slag it leaves on the weld. You will need to remove slag between passes in multiple-pass applications and before painting or coating.
Easiness of welding
Required skilled and well trained operator
It does not need skilled and well trainer operator compared with Solid wire.
It is economic compared with FCAW
It is little costly compared with solid
Next Pages are about the understandings of the GMAW wire and FCAW wire.
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