镁合金的焊接及其在汽车上的应用
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摘要
汽车节能环保要求的不断提高一定程度上促进了镁合金材料零部件的开发与应用。随着镁合金材料的应用增多,焊接技术将成为其大量应用前亟待解决的一项难题。本文基于镁合金的材料属性特点,分析了镁合金的焊接性及其相关质量问题,讨论了镁合金的主流焊接方法及其工艺特点,简述了镁合金材料在汽车上的主要应用情况,并对镁合金的应用和发展方向进行了展望。
The improvement of automotive energy saving and environmental protection requirements has promoted the development and application of magnesium alloy parts to some extent. With the extensive application of the magnesium alloy, the welding technology has become a problem urgently to be solved. In this paper, based on the material properties of magnesium alloy, the weldability and related quality problems of magnesium alloy are analyzed,the mainstream welding methods and process characteristics of magnesium alloy are discussed, the main applications of magnesium alloy in automobile are briefly described, and the application and development direction of magnesium alloy are prospected.
The improvement of automotive energy saving and environmental protection requirements has promoted the development and application of magnesium alloy parts to some extent. With the extensive application of the magnesium alloy, the welding technology has become a problem urgently to be solved. In this paper, based on the material properties of magnesium alloy, the weldability and related quality problems of magnesium alloy are analyzed,the mainstream welding methods and process characteristics of magnesium alloy are discussed, the main applications of magnesium alloy in automobile are briefly described, and the application and development direction of magnesium alloy are prospected.
引文
[1]Horst E.Friedrich.Leichtbau in der Fahrzeugtechnik[M]Springer Vieweg,2013:45-46.
[2]Liu L M,Wang J F,Song G.Hybrid laser-TIG welding,laser beam welding and gas tungsten arc welding of AZ31Bmagnesium alloy[J].Materials Science and Engineering:A2004,381(9):129-133.
[3]方乃文,王丽萍,李连胜,等.镁合金焊接技术研究现状及发展趋势[J].焊接,2017(5):22-26.
[4]Wang L Z,Shen J,Xu N.Effects of mix activated fluxes coating on microstructures and mechanical properties of tungsten inert gas welded AZ31 magnesium alloy joints[J].Materials Science and Engineering:A,2011,528:7276-7284.
[5]A.Munitz,C.Cotler,A.Stern,et al.Mechanical properties and microstructure of gas tungsten arc welded magnesium AZ91D plates[J].Materials Science and Engineering:A2001,302(4):68-73.
[6]孙德新,孙大千,李金宝,等.镁合金焊接技术的研究进展及应用[J].材料导报,2006(8):122-126.
[7]高明,谭兵,冯杰才,等.工艺参数对AZ31镁合金激光-MIG复合焊缝成形的影响[J].中国有色金属学报,200919(2):222-227.
[2]Liu L M,Wang J F,Song G.Hybrid laser-TIG welding,laser beam welding and gas tungsten arc welding of AZ31Bmagnesium alloy[J].Materials Science and Engineering:A2004,381(9):129-133.
[3]方乃文,王丽萍,李连胜,等.镁合金焊接技术研究现状及发展趋势[J].焊接,2017(5):22-26.
[4]Wang L Z,Shen J,Xu N.Effects of mix activated fluxes coating on microstructures and mechanical properties of tungsten inert gas welded AZ31 magnesium alloy joints[J].Materials Science and Engineering:A,2011,528:7276-7284.
[5]A.Munitz,C.Cotler,A.Stern,et al.Mechanical properties and microstructure of gas tungsten arc welded magnesium AZ91D plates[J].Materials Science and Engineering:A2001,302(4):68-73.
[6]孙德新,孙大千,李金宝,等.镁合金焊接技术的研究进展及应用[J].材料导报,2006(8):122-126.
[7]高明,谭兵,冯杰才,等.工艺参数对AZ31镁合金激光-MIG复合焊缝成形的影响[J].中国有色金属学报,200919(2):222-227.