Analysis of Characteristics of Mg Alloy Welded Joint by Laser Welding

Abstract:

The microstructure, the regular and mechanism of various parameters on formation of weld bead of Mg alloy AMCa403 using a laser welding were investigated. The results show that sound welds without major defects can be produced. Two welding modes of deep penetration welding, heat conduction welding were found, and heat input was found to be the main factor for welding mode and shape. The microstructure of weld metal is significantly finer than the base metal. At the same power, with the increase of welding speed, the microstructure of weld metal is much finer.

• Periodical: Advanced Materials Research (Volumes 314-316)
• Pages: 949-952
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.314-316.949
• Online since: August 2011
• Authors: Hong Jian Xiu, Jun Liu, Jun Hui Dong, Ping Xu
• Keywords: Mg Alloy, Microstructure, Welding Procedure

References

[1] X Cao, M Jahazi, J.P Immarigeon, et al. Journal of Materials Processing Technology, Vol. 171(2006), P.188

[2] A Munitz , C Cotler, A Stern, et al. Materials Science and Engineering, Vol. A302(2001), P.68

[3] Toshikatsu Asahing, Hiroshi Tokisuje, Kazuyoshi katoh. Journal of Japan Institute of Light Metals, Vol. 49(1999), P.595

[4] T.Y. Kuo, H.C. Lin. Materials Science and Engineering, Vol. A416(2006), P. 281

[5] Wu xingquan. Rare metals letters. Vol. 9 (2002), P.12 (In Chinese).