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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2022, Vol. 43 ›› Issue (2): 625190.doi: 10.7527/S1000-6893.2021.25190

• Special Topic of Advanced Aeronautical Materials Welding/Joining • Previous Articles     Next Articles

Hybrid welding of riveting/friction stir lap joining of aluminum alloy to resin-based composite

JIANG Chunyang1,2, WU Lihui2, CHANG Yunlong1, XUE Peng2, NI Dingrui2, XIAO Bolv2, MA Zongyi2   

  1. 1. School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870, China;
    2. Shi Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2020-12-30 Revised:2021-01-18 Published:2021-03-09
  • Supported by:
    National Natural Science Foundation of China (51975553);Liaoning Natural Science Foundation of China(2021-MS-007);Youth Innovation Promotion Association of the Chinese Academy of Sciences(2021193)

Abstract: Lightweight has become a significant development direction in aerospace, rail transportation and other fields because of its advantages in such as reducing fuel consumption, improving efficiency and reducing costs. The dissimilar joining of aluminum alloy and resin-based composite has attracted great attention because it can meet the demand of lightweight considerably. However, due to the huge property difference between the two materials, it is difficult to obtain a high-quality joint. A hybrid welding method combining riveting with friction stir lap joining was proposed to achieve a high-quality joint of 5052 aluminum alloy and resin-based composites, and the joint tensile shear force achieved 6.2 kN. Mechanical interlocking and tight bonding at the interface were the main joining mechanisms of hybrid welding. In the condition of high strength and lightweight, the tensile displacement of the joint before failure of the proposed method was 212% higher than that of the traditional riveting. This was a comprehensive result of improvement of stress concentration, increase of joining area, increase of tightness of interface and shear resistance of the rivet. With hybrid welding, the joints have not only high strength of riveting, but also the characteristics of large joining area and uniform stress distribution of friction stir lap joining, which further improve reliability of the joint. Therefore, the hybrid welding of riveting and friction stir lap joining has great potential in obtaining a reliable dissimilar metal/resin-based composite joint.

Key words: hybrid welding, riveting, friction stir welding, aluminum alloy, resin-based composite, dissimilar joining

CLC Number: