Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
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Friction spot joining of dissimilar materials

마찰교반점용접을 이용한 이종재료의 접합

  • Cheon, Chang-Geun (Welding Research Center, Research Institute of Industrial Science and Technology) ;
  • Kim, Teuk-Gi (Welding Research Center, Research Institute of Industrial Science and Technology) ;
  • Rajesh, S.R. (Welding Research Center, Research Institute of Industrial Science and Technology) ;
  • Kim, Heung-Ju (Welding Research Center, Research Institute of Industrial Science and Technology) ;
  • Jang, Ung-Seong (Welding Research Center, Research Institute of Industrial Science and Technology)
  • Published : 2007.11.15
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Abstract

The Friction spot dissimilar welding of galvanized steel/Al6061-T6 was performed to investigate the mechanical characteristics of the joints. The presence of thin film of aluminum oxide on the surface and melting of zinc in the coating, made substandard joint characteristics for dissimilar Friction spot joining(FSJ) performed with out removing the coating. Where as, for dissimilar FSJ of galvanized steel/Al6061-T6 after removing the coating, superior agitation and welding quality has been obtained for a configuration of galvanized steel as the upper plate and Al6061-T6 as lower plate. The results from tensile tests and microscopic examination for various combinations of the welding parameters have been presented.

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