Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Effect of Tool Plunge Depth on Weldability of Dissimilar Al5083-O/DP590 Friction Spot Joint

이종재 Al5083-O/DP590 마찰교반점용접시 툴의 삽입깊이(Plunge Depth)가 용접성에 미치는 영향

  • Jeong, Su-Ok (Graduate School of Welding and Joining Science Engineering, Chosun University) ;
  • Bang, Han-Sur (Dept. of Welding and Joining Science Engineering, Chosun University) ;
  • Bang, Hee-Seon (Dept. of Welding and Joining Science Engineering, Chosun University)
  • 정수옥 (조선대학교 용접.접합과학공학과 대학원) ;
  • 방한서 (조선대학교 용접.접합과학공학과) ;
  • 방희선 (조선대학교 용접.접합과학공학과)
  • Received : 2016.05.30
  • Accepted : 2016.06.21
  • Published : 2016.06.30
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Abstract

In terms of mechanical and metallurgical characteristics, the effect of tool plunge depths(0.2, 0.5, 0.7, 1.0, 1.5mm) on weldability in dissimilar Al5083-O/DP590 friction spot joint has been clarified. From the results, it is found that the stirred nugget was stably formed at a plunge depth of more than 0.7mm, which is caused by improved stirring action against each other material. With increasing a plunge depth, the thickness of intermetallic compound(IMC) layer in Al5083-O/DP590 joint has a tendency to increase. The tensile shear strength reaches to the maximum failure load of 6.5kN at a plunge depth of 0.7mm due to relatively small decrease in the thickness of Al5083-O sheet and relatively minute thickness of IMC layer, compared with those of other plunge depth conditions.

Keywords

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