Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of Failure Mode and Strength on Baking Time of Adhesive for Hybrid Joining

접착제 경화시점에 따른 하이브리드 접합 파단모드 및 접합강도 평가

  • Choi, Chul-Young (School of Materials Science and Engineering, Pusan National University) ;
  • Saha, Dulal Chandra (Department of Advanced Materials Engineering, Dong-Eui University) ;
  • Choi, Won-Ho (Department of Mechanical Engineering, Graduate School, Daegu University) ;
  • Kim, Jun-Ki (Advanced Welding & Joining Technology Center/Micro-Joining Center, KITECH) ;
  • Kim, Jong-Hoon (Advanced Welding & Joining Technology Center/Micro-Joining Center, KITECH) ;
  • Park, Yeong-Do (Department of Advanced Materials Engineering, Dong-Eui University)
  • 최철영 (부산대학교 재료공학부) ;
  • ;
  • 최원호 (대구대학교 기계공학과) ;
  • 김준기 (한국생산기술연구원 용접접합기술센터) ;
  • 김종훈 (한국생산기술연구원 용접접합기술센터) ;
  • 박영도 (동의대학교 신소재공학과)
  • Received : 2011.04.04
  • Accepted : 2011.12.08
  • Published : 2011.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

With the development of pre-painted steel sheets for automotive body application, a new joining method is required such as hybrid joining with combination of adhesive bonding and mechanical joining. The objective of this study is to investigate the effect of pre- and post-baking of adhesive bonding on failure mode and strength of hybrid joining of automotive steel sheets. Experiments show that the hybrid joining exhibits better bonding strength and displacement than conventional adhesive joining and mechanical fastening each. Comparison of pre- and post-baked hybrid joining results suggested that baking at $160^{\circ}C$ after mechanical joining was found to have higher joining properties than pre-baking condition. The prebaking condition changed its fracture mode from interfacial to button fracture. The changes in fracture mode with post-baking of hybrid joining was attributed to variation in neck thickness and undercut of joint.

Keywords

References

  1. H. Kanai, H. Nomura, K. Honda, Y. Kimata, K. Ueda and H. Furukawa, Prepainted Steel Sheets Usable without Painting, Nippon Steel Technical Report, 81 (2000), 47-52
  2. H. D. Hwang, Y. H. Lee, H. J. Kim, S. M. Noh, J. H. Nam, J. M. Park and J. H. Kim, Technology for Innovative Automotive Coating Process, KIC News, 13-6 (2010), 36-53
  3. J.Varis, Ensuring the integrity in clinching process, Trans. Mater. Process, 174 (2006), 277-285 https://doi.org/10.1016/j.jmatprotec.2006.02.001
  4. G. Belingardi, L. Goglio and A. Tarditi, Investingating the Effect of Spew and Camfer Size on the Stresses in Metal/Plastics Adhesive Joints, Journal of Adhesion and Adhesives, 22 (2002), 273-282 https://doi.org/10.1016/S0143-7496(02)00004-0
  5. Zhongsen Li, J, K, Lim and Y. J. Kim, Stress Distribution and Strength Evaluation of Adhesive Bonded Single-lap Joints, Journal of KWJS, 19-3 (2001), 342-347 (in Korean)
  6. J. Varis, J. Lepisto, A Simple Testing-Based Procedure and Simulation of the Clinching Process Using Finite Element Analysis for Establishing Clinching Parameters, Thin-Walled Structures 41 (2003), 691-709 https://doi.org/10.1016/S0263-8231(03)00026-0
  7. V. R. Jayasekara, J. H. Noh, B. B. Hwang, K. C. Ham and D. H. Jang, A Study on the Forming Characteristics of Clinching Joint Process, Trans. Mater. Process, 16-8 (2007), 603-613 https://doi.org/10.5228/KSPP.2007.16.8.603
  8. M. S. Kim, H. Y. Kim, S. H. Yoo, J. H. Kim and J. K. Kim, Effect of Curing Agent on the Curing Behavior and Joint Strength of Epoxy Adhesive, Journal of KWJS, 29-4 (2011), 416-422 (in Korean) https://doi.org/10.5781/KWJS.2011.29.4.416
  9. T. A. Barnes, I. R. Pashby, Joining Techniques for Aluminum Spaceframes used in Automobiles Part II. Journal of Materials Processing Technology 99 (2000), 62-71 https://doi.org/10.1016/S0924-0136(99)00367-2
  10. C. J. Lee, J. Y. Kim, S. K. Lee, D. C. Ko and B. M. Kim, Design of Mechanical Clinching Tools for Joining of Aluminum Alloy Sheets, Materials & Design, 31 (2010), 1854-1861 https://doi.org/10.1016/j.matdes.2009.10.064
  11. J. Y. Kim, C. J. Lee, S. K. Lee, D. C. Ko and B. M. Kim, The Effect of Adhesive Layer on Joining Strength of the Hybrid Clinching Joint, Trans of the KSME Conference, 2008, 220-225
  12. A. Roy, C. Mabru, J. L. Gacougnolle and P. Davies, Damage Mechanisms in Composite/Composite Bonded Joinis Under Static Tensile Loading, 4-2 (2006), 95-119
  13. T. Balawender, T. Sadowski, M. Knec, Technological Problems and Experimental Investigation of Hybrid : Clinched-Adhesively Bonded Joint, 56 (2011), 438-446 https://doi.org/10.2478/v10172-011-0047-3
  14. D. J. Cartwright, A. P. Parker, Opening Mode Stress Intensity Factor for Cracks in Pin-loads Joint, Int. J. of Fracture, 18-1 (1982), 65-78 https://doi.org/10.1007/BF00034829