Formation Mechanism of 6009 Aluminum Alloy Joint by Laser-MIG Arc Hybrid Welding

  • Defen Zhang
  • Jinli Han
  • Xiaowen Chen
  • Yang Yang
  • Yu Tang
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)


An investigation of the influence of different position for laser and arc on the formation mechanism of 6009 aluminum alloy joint by laser-MIG arc hybrid Welding was dealt with in this paper. As a result of stronger laser-arc coupling with laser at the front, the formability of joint which was welded with laser at the front is better than that of joint which was welded with arc at the front. Due to mechanical rabbling of arc, the grain size of upper weld is smaller than that of lower weld; There is softening zone in the heat affected zone of hybrid welding joint. In trailing MIG torch arrangement, the hardness of upper joint is less than that of lower joint for tempering of arc. While, the hardness of upper joint for leading MIG torch setup is higher than that of lower joint, owing to the secondary remelting of solidified metal by laser. That second phases at HAZ coarsens and grows has great influence on the mechanical property of the hybrid weld joint. Grooving before welding is beneficial to enhance the mechanical properties of joint. The tensile fracture of hybrid welding joint has typical dimples feature. The formation of dimples is associated with second phase particles.


6009 aluminum alloys Fiber laser-MIG arc hybrid welding Formation mechanism 



This work was supported by of National Natural Science Foundation Project (Grant No. 51774249), The Foundation Sichuan Provincial Department of Education (Grant No. 15ZA0048) and Open Experimental Project In Southwest Petroleum University (Grant No. KSZ14113).


  1. 1.
    K.J. Kim, R.H. Rhee, B.I. Choi, C.W. Sung, C.P. Han, K.W. Kang, S.T. Won, Development of application technique of aluminum sandwich sheets for automotive hood. Int. J. Precision Eng. Manuf. 10, 71–75 (2009)CrossRefGoogle Scholar
  2. 2.
    J.C. Benedyk, 3–Aluminum alloys for lightweight automotive structures. Mater. Des. Manuf. Lightweight Veh. 79–113 (2010)Google Scholar
  3. 3.
    M. Raugei, D. Morrey, A. Hutchinson, P. Winfield, A coherent life cycle assessment of a range of lightweighting strategies for compact vehicles. J. Cleaner Prod. 108, 1168–1176 (2015)CrossRefGoogle Scholar
  4. 4.
    C.P. Kohar, A. Zhumagulov, A. Brahme, M.J. Worswick, R.K. Mishra, K. Inal, Development of high crush efficient, extrudable aluminium front rails for vehicle lightweighting. Int. J. Impact Eng. 95, 17–34 (2016)CrossRefGoogle Scholar
  5. 5.
    Y. Muraoka, H. Miyaoka, Development of an all-aluminum automotive body. J. Mater. Process. Technol. 38, 655–674 (1993)CrossRefGoogle Scholar
  6. 6.
    W.S. Miller, L. Zhuang, J. Bottema, A.J. Wittebrood, P.D. Smet, A. Haszler, A. Vieregge, Recent development in aluminium alloys for the automotive industry. Mater. Sci. Eng A. 280, 37–49 (2000)CrossRefGoogle Scholar
  7. 7.
    H.K. Lee, K.S. Chun, S.H. Park, C.Y. Kang, Control of surface defects on plasma-MIG hybrid welds in cryogenic aluminum alloys. Int. J. Naval Architect. Ocean Eng. 7, 770–783 (2015)CrossRefGoogle Scholar
  8. 8.
    M. Ono, Y. Shinbo, A. Yoshitake, M. Ohmura, Development of laser-arc hybrid welding. Nkk Tech. Rev. 86 (2002)Google Scholar
  9. 9.
    J. Yang, X.Y. Li, S.L. Gong, L. Chen, F. Xu, Typical joint defects in laser welded aluminium-lithium alloy. Lasers Eng. 2, 337–350 (2011)Google Scholar
  10. 10.
    S. Katayama, 12–Defect formation mechanisms and preventive procedures in laser welding. Handb. Laser Weld. Technol. 332–373 (2013)Google Scholar
  11. 11.
    D. Petring, 18–Developments in hybridisation and combined laser beam welding technologies. Handb. of Laser Weld. Technol. 478–504 (2013)Google Scholar
  12. 12.
    E.L. Guen, R. Fabbro, M. Carin, F. Coste, P.L. Masson, Analysis of hybrid Nd: Yag laser-MAG arc welding processes. Opt. Laser Technol. 47, 1155–1166 (2011)CrossRefGoogle Scholar
  13. 13.
    C. Cai, J. Feng, L. Li, Y. Chen, Influence of laser on the droplet behavior in short-circuiting, globular, and spray modes of hybrid fiber laser-MIG welding. Opt. Laser Technol. 83, 108–118 (2016)CrossRefGoogle Scholar
  14. 14.
    C. Thomy, 10–Hybrid laser–arc welding of aluminium. Hybrid Laser-Arc Weld. 216–269 (2009)Google Scholar
  15. 15.
    Z. Gao, J. Huang, L.I. Yaling, W.U. Yixiong, Effect of relative position of laser beam and arc on formation of weld in laser-MIG hybrid welding. Trans. China Weld. Inst. (2008)Google Scholar
  16. 16.
    S. Liu, Y. Li, F. Liu, H. Zhang, H. Ding, Effects of relative positioning of energy sources on weld integrity for hybrid laser arc welding. Opt. Lasers Eng. 81, 87–96 (2016)CrossRefGoogle Scholar
  17. 17.
    S. Liu, J. Li, G. Mi, C. Wang, X. Hu, Study on laser-MIG hybrid welding characteristics of A7N01-T6 aluminum alloy. Int. J. Adv. Manuf. Technol. 87, 1–10 (2016)Google Scholar
  18. 18.
    X. Li, X. Wang, Z. Lei, H. Yang, Investigation on softening of welded joint of side walls of high speed train of 6N01 aluminum alloy. Hanjie Xuebao/Trans. China Weld. Inst. 36, 95–98 (2015)Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Defen Zhang
    • 1
  • Jinli Han
    • 1
  • Xiaowen Chen
    • 1
  • Yang Yang
    • 1
  • Yu Tang
    • 1
  1. 1.School of Material and EngineeringSouthwest Petroleum UniversityChengduChina

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