Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Weldability of SUS304 and Ti Dissimilar Welds with Various Welding Speed using Single Mode Fiber Laser

싱글모드 파이버 레이저를 이용한 SUS304와 Ti 이종재료의 용접속도에 따른 용접특성

  • Lee, Su-Jin (Joining and Welding Research Institute, Osaka University) ;
  • Katayama, Seiji (Joining and Welding Research Institute, Osaka University) ;
  • Kim, Jong-Do (Division of Marine Engineering, Korea Maritime and Ocean University)
  • Received : 2013.09.24
  • Accepted : 2013.10.24
  • Published : 2013.10.31
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Abstract

The joining of Ti and SUS304 dissimilar metals is one of the effective measures to save rare metal. But Ti and SUS304 have differences in materials properties, and Ti and Fe intermetallic compounds such as TiFe and $TiFe_2$ are easily formed in weld fusion zone between Ti and SUS304. Nevertheless, in this study, full penetration lap dissimilar welding of Ti and SUS304 using single-mode fiber laser with ultra-high welding speed was tried, and it was found out that ultra-high welding speed could control the generation of intermetallic compound. To recognize the formation of intermetallic phase in the weld fusion zone and the compound zone of interface weld area were observed and analyzed using energy dispersive X-ray spectroscopy (EDX). And it was confirmed that the ultra-high welding speed could reduce amount of intermetallic compounds, but the intermetallic compounds were existed in the weld fusion zone under the all conditions.

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References

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