• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2020, Vol. 56 ›› Issue (6): 4-16.doi: 10.3901/JME.2020.06.004

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Research Progress in Dissimilar Friction Stir Welding of Aluminium/Magnesium Alloys

WU Chuansong, Lü Xueqi, SU Hao, SHI Lei   

  1. MOE Key Laboratory for Liquid-Solid Structural Evolution and Materials Processing, Shandong University, Jinan 250061
  • Received:2019-09-02 Revised:2019-10-07 Online:2020-03-20 Published:2020-05-12

Abstract: With the increasing demand for environmental protection, energy saving and emission reduction, the lightweight structures of aluminum alloys and magnesium alloys are increasingly used in industries such as aerospace, high-speed trains, automobiles, and new energy fields. Particularly, the joining of aluminum-magnesium dissimilar alloys faces many challenges and is one of the key technical issue that needs to be solved urgently. Compared with other joining methods, friction stir welding(FSW) shows a great advantage in joining aluminum-magnesium dissimilar metals. In recent years, some new FSW variant processes have emerged. According to the research progress in the field of aluminum-magnesium dissimilar alloys FSW in recent years, this paper comprehensively reviews the research status, existing problems and the important unsolved issues in this field. The purpose is to clarify the physical mechanism, technical difficulties and solutions of FSW and its modification processes in joining of dissimilar aluminum-magnesium alloys, and promote the wide application of aluminum-magnesium hybrid-structure in the automotive industry.

Key words: aluminum alloys, magnesium alloys, dissimilar joints, friction stir welding

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