[1] [1] Xu Ruilin, Zhu Pinchao, Yu Chengzai, et al.. Present situation and development trends of welding technologies for B.I.W[J]. Electric Welding Machine, 2010, 40(50): 1-18.

[2] [2] H Karbasian, A E Tekkaya. A review on hot stamping[J]. Journal of Materials Processing Technology, 2010, 210(15): 2103-2118.

[3] [3] A Turetta, S Bruschi, A Ghiotti. Investigation of 22MnB5 formability in hot stamping operations[J]. Journal of Materials Processing Technology, 2006, 177(1): 396-400.

[4] [4] X Cao, M Jahazi. Effect of welding speed on butt joint quality of Ti-6Al-4V alloy welded using a high-power NdYAG laser[J]. Opt & Lasers in Eng, 2009, 47(11): 1231-1241.

[5] [5] Yu Sibin. Research on Laser Welded Joint Weld Ability of Ultra-High Strength Steel[D]. Changchun: Jilin University, 2012.

[6] [6] Dong Danyang, Wang Guanjun, Ma Min, et al.. Study on microstructure and properties of laser welding dual phase steel joints for an auto-body[J]. Chinese J Lasers, 2012, 39(9): 0903002.

[7] [7] Chen Genyu, Chen Fei, Zhang Yi, et al.. Effect of butt joint gap to high-strength automobile steel of fiber laser welding[J]. Chinese J Lasers, 2011, 38(6): 0603013.

[8] [8] Lu Bingbing. Analysis and optimization for auto roof to body-side laser welding[J]. Chinese J Lasers, 2010, 37(5): 1375-1379.

[9] [9] W Xu, D Westerbaan, S S Nayak, et al.. Tensile and fatigue properties of fiber laser welded high strength low alloy and DP980 dual-phase steel joints[J]. Materials and Design, 2013, 439(11): 373-383.

[10] [10] N Farabi, D L Chen, Y Zhou. Microstructure and mechanical properties of laser welded dissimilar DP600/DP980 dual-phase steel joints[J]. Journal of Alloys and Compounds, 2011, 509(3): 982-989.

[11] [11] A Sullivan, J D Robson. Microstructural properties of friction stir welded and post-weld heat-treated 7449 aluminium alloy thick plate[J]. Materials Science Engineering A, 2008, 478(1-2): 351-360.

[12] [12] L Quinto, A Costa, R Miranda, et al.. Welding with high power fiber lasers-a preliminary study[J]. Materials Design, 2007, 28(4): 1231-1237.

[13] [13] A Turetta, S Bruschi, A Ghiotti. Investigation of 22MnB5 formability in hot stamping operations[J]. Journal of Materials Processing Technology, 2006, 177(1-3): 396-400.

[14] [14] Jia Jin, Yang Shanglei, Ni Weiyuan, et al.. Study on microstructure and properties of laser welding joints of marine high strength steel E36[J]. Chinese J Lasers, 2014, 41(2): 0203002.

[15] [15] Wang Wenquan, Shang Yangeng, Li Xiujuan, et al.. Microstructure and property of laser welded 650 MPa transformation induced plasticity steel sheet[J]. Journal of Jilin University (Engineering and Technology Edition), 2012, 42(5): 1203-1207.

[16] [16] Z Gu, S Yu, L Han, et al.. Influence of welding speed on microstructures and properties of ultra-high strength steel sheets in laser welding[J]. ISIJ International, 2012, 52(3): 483-487.