Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Effects of Welding Parameters on Weld Metal Strength and Recovery of Alloying Elements in FCAW

FCAW에서 용접변수에 따른 용접금속 강도 및 와이어 합금원소의 회수율 변화

  • Jung, Dong-Hee (Division of Advanced Materials Science and Engineering, PKNU) ;
  • Bang, Kook-Soo (Division of Advanced Materials Science and Engineering, PKNU) ;
  • Park, Chan (Division of Advanced Materials Science and Engineering, PKNU) ;
  • Chang, Woong-Sung (Welding Research Center, Research Institute of Industrial Science and Technology) ;
  • Park, Chul-Gyu (R&D Center, KISWEL)
  • Published : 2008.04.30
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Abstract

590MPa grade weldable steels were gas metal arc welded with flux cored wires. Welding parameters such as current, voltage, and speed were varied independently. Effects of each parameter on the strength and chemical composition of weld metal were investigated. Increase of voltage caused decrease of weld metal tensile strength due to the low recovery of alloying elements such as carbon and manganese. On the contrary, increase of current and speed resulted in increase of weld metal strength because of higher recovery of the alloying elements.

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References

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