Microstructures and Properties of Fiber Laser Welded ACM522 Magnesium Alloy Joint
The microstructure, mechanical properties, hardness, rules and mechanism of various parameters on formation of weld bead of Mg alloy ACM522 using a fiber laser welding were investigated. The results showed that sound welds without major defects could be produced and the mechanical properties of welding joints were good. With the increase of laser power, the penetration depth and bead width of the weld bead all increased. The mechanism of welding transformed from the conduction welding mode to the deep penetration welding mode and the weld beads aspect ratio became higher with the increase of heat input. The microstructure of weld metal was significantly finer and the hardness of weld metal was higher than that of the base metal.
Fiber Laser Magnesium Alloy Microstructure Mechanical Property
Jun LIU Junhui DONG Shinozaki K
College of Material Scievnce and Engineering, Inner Mongolia University of Technology, Huhhot, 01005 Graduate School of Engineering, Hiroshima University 1-4-1, Kagamiyama,Higashi-Hiroshima, Hiroshima
国际会议
重庆
英文
911-914
2008-06-09（万方平台首次上网日期，不代表论文的发表时间）