• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2020, Vol. 56 ›› Issue (6): 85-94.doi: 10.3901/JME.2020.06.085

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Research Status and Development on Laser Joining of Metal to Plastic

TAN Caiwang1,2, SU Jianhui1, FENG Ziwei2, CHEN Bo2, SONG Xiaoguo1,2, FENG Jicai1,2   

  1. 1. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001;
    2. Shandong Provincial Key Laboratory of Special Welding Technology, Harbin Institute of Technology at Weihai, Weihai 264209
  • Received:2019-08-30 Revised:2019-10-14 Online:2020-03-20 Published:2020-05-12

Abstract: The studies on the laser joining of metal to plastic in recent years are summarized, and the problems as well as difficulties in the laser joining process are analyzed. The research status is discussed from the following aspects:joining characteristics, simulation of temperature field at the interface, generation and suppression of gas bubbles and regulation of joint performance. In the discussion of the process, the effect of laser power, welding speed and defocus distance on the strength of joints is concluded, and the optimization methods of process parameters are introduced. The temperature field simulation calculation of finite element model on the joint width and strength is then summarized. The influence of gas bubbles on the performance of joints is stated after concluding the formation of bubbles. The way to regulate the joint strength is summarized according to the joining mechanism for metal and plastic. The potential problems are pointed out, and the conclusions and prospects for laser joining of metal to plastic are finally disclosed.

Key words: metal and plastic, laser joining, simulation of temperature field, gas bubbles, performance regulation

CLC Number: