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1: Excessive Spatter
Possible Reason Suggested Remedy
 
 
 
 
 
 





2: Porosity - small cavities or holes resulting from gas pockets in weld metal.
Possible Reason Suggested Remedy
 





 
 
 



 



4: Wire stubbing during welding
Possible Reason Suggested Remedy
 
 
 
5: Lack of Fusion − failure of weld metal to fuse completely with base metal or a proceeding weld bead.
Possible Reason Suggested Remedy
 
 
 
°



5: Excessive Penetration − weld metal melting through base metal
Possible Reason Suggested Remedy
 

6: Lack of Penetration − shallow fusion between weld metal and base metal
 


° keeping the stick out between 5-10mm
 

 


MIG WELDING TROUBLE SHOOTING
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