ISRN Mechanical Engineering
Volume 2011, Article ID 923964, 7 pages
http://dx.doi.org/10.5402/2011/923964
The Investigation of Laser Lap Welding Process on High-Strength Galvanized Steel Sheets
1Industrial Center, Huazhong University of Science and Technology, Wuhan 430074, China
2Technology Center, Dongfeng Automobile Limited Company, Wuhan 430068, China
Received 12 January 2011; Accepted 16 February 2011
Academic Editor: Y. Zhang
Copyright © 2011 Shiquan Zhou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The development of automobile steel was analyzed in this paper; it is pointed out that high-strength galvanized steel will be widely used in the car body structure. By analyzing welding problems about the dual phase (DP) series of high-strength galvanized steel, the importance of laser welding was concerned. Finally, laser lap welding process technology of high-strength galvanized steel was studied; the results show that the lap weld with welding process smooth and spatter-free as well as beautiful welding bead surface appearance and good mechanical properties can be made by using the dual-beam laser welding technology and interlayer for welding high-strength galvanized steel.