Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Joint Characteristics of Spot Friction Stir Welded A 5052 Alloy Sheet

마찰교반 점용접한 A 5052 알루미늄 합금판재의 접합부 특성

  • Yeon, Yun-Mo (Dept. of Automated System, Suwon Science College) ;
  • Lee, Won-Bae (Dept. of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Lee, Chang-Yong (Dept. of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Jung, Seung-Boo (Dept. of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Song, Keun (Dept. of Advanced Materials Application, Suwon Science College)
  • 연윤모 (수원과학대학 자동화시스템과) ;
  • 이원배 (성균관대학교 신소재공학과) ;
  • 이창용 (성균관대학교 신소재공학과) ;
  • 정승부 (성균관대학교 신소재공학과) ;
  • 송건 (수원과학대학 신소재응용과)
  • Published : 2006.02.01
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Abstract

In this study, the microstructure and mechanical properties of spot friction stir welded A 5052 alloy were investigated. Especially, the effect of insertion depth of welding tool on microstructural changes and mechanical properties was investigated in order to obtain the optimum spot friction stir welding condition. The lap shear load of spot friction stir welded A 5052 alloy plates showed lower value at the shallowest insertion depth and increased with tool insertion depth. At 1.6mm, the maximum value of 3.35 kN was obtained, and then dropped to lower load when the insertion depth was deeper. Spot friction stir welded joints showed shear fracture mode at shallower insertion depths and fracture mode changed to plug fracture mode as the insertion depth was deeper.

Keywords

References

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