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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 5    October 2001

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Interface reaction in aluminium
matrix composite at laser welding
LIU Li-ming(刘黎明)1, ZHU Mei-li(祝美丽)1
XU De-sheng(许德胜)2, WU Lin(吴  林)3

1. Department of Materials Engineering, Dalian University of Technology,
Dalian 116024, P.R.China;
2. National Key Laboratory of Laser Technology, Huazhong University of
Science and Technology, Wuhan 430074, P.R.China;
3. National Key Laboratory of Advanced Welding Production Technology,
Harbin Institute of Technology, Harbin 150001, P.R.China

Abstract: Interface reaction of SiCw/6061Al aluminium matrix composite subjected to laser welding was studied. It is pointed out that the main reason for bad weldability of the material is concerned with the interface reaction during the welding. Effects of welding parameters on interface reaction were also investigated. The results show that the interface bonding state can be improved by laser beam, and the main welding parameter affecting the strength of weld is laser output power. The smaller the output power, the lower the extent of interface reaction and the better the mechanical properties.

 

Key words:   aluminium matrix composite; laser welding; interface reaction

ISSN 1672-7029
CN 43-1423/U

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