[1] Tan Juan,Wang Jun,Gao Haiyan et al.. Recent advances in high strength galvannealed sheet steels[J]. Materials Review,2008,22(2):64-67

[2] Wu Qiang,Chen Genyu,Wang Gui et al.. CO2 laser welding of zinc coated high strength steel[J]. Chinese J. Lasers,2006,33(8):1133-1138

[3] Feng Xiaosong,Chen Yanbin,Li Liqun et al.. Laser brazing with wire feed of galvanised thin sheets[J]. Appled Laser,2004,24(6):357-360

[4] Jae-Do Kim,I. Na,Chan-Cheol Park. CO2 laser welding of zinc-coated steel sheets[J]. KSME Inter. J.,1998,12(4):606-614

[5] A. K. Dasgupta, J. Mazumder. Laser welding of zinc coated steel:an alternative to resistance spot welding[J]. Sci. Technol. Weld. Joining,2008,13(3):289-293

[6] M. Schmidt,A. Otto,C. Kgeler. Analysis of YAG laser lap-welding of zinc coated steel sheets[J]. CIRP Annals-Manuf. Technol.,2008,57(1):213-216

[7] Chen Yanbing. Modern Laser Welding Technology[M]. Beijing:Science Press,2005. 64-65

[8] Huang Zhijun,Hu Lunji,Liu Jianhua et al.. Research on zinc distribution and corrosion resistance of laser welding joint of galvanized steel[J]. Welding and Joining,2004,(5):17-20

[9] Xi Shengyin. Robust analysis and experiment of laser welding process parameters on overlap joint[J]. Applied Laser,2008,28(4):227-230

[10] Y. F. Tzeng , F. C. Chen. Effects of operating parameters on the static properties of pulsed laser welded zinc-coated steel[J]. Int. J. Adv. Manuf. Technol.,2001,18(9):641-647

[11] Weichiat Chen,Paul Ackerson,Pal Molian. CO2 laser welding of galvanized steel sheets using vent holes[J]. Mater. Design,2009,30(2):245-251

[12] Xiong Jiangang,Hu Lunji,Liu Jianhua et al.. Study on laser welding of zinc coated steel and the effects of zinc vaporization[J]. Laser Technology,1998,22(1):26-29

[13] Yi Z,Lijun L,Gang Z. Spectroscopic measurements of plasma inside the keyhole in deep penetration laser welding[J]. J. Phys. D,2005,38(5):703-710

[14] S. Iqbal,M. M.S. Gualini,F. Grassi. Laser welding of zinc-coated steel with tandem beams:Analysis and comparison[J]. J. Mater. Proc. Technol.,2007,184(1-3):12-18

[15] Zhang Hailiang. Study on laser welding process in passat lingyu[J]. Applied Laser,2006,26(1):90-92

[16] Fenggui Lu,Binfeng Lu,Xinhua Tang et al.. Study of influencing factors and joint performance of laser brazing on zinc-coated steel plate[J]. Int. J. Adv. Manuf. Technol.,2008,37(9-10):961-965

[17] Feng Xiaosong,Chen Yanbin,Ni Jiaming et al.. Dual laser beam brazing process[J]. Transactions of the China Welding Institution,2006,27(9):17-20

[18] Feng Xiaosong,Chen Yanbin,Li Liqun. Study of seam appearance and joint quality in laser brazing for galvanized steel sheets[J]. Applied Laser,2005,25(1):23-26

[19] Huang Haijun,Xi Shengyin,Ding Jianjun. The research on laser welding processes of zinc-coated steel of car body for improving the influence of zinking layer[J]. Applied Laser,2005,25(5):306-308,354

[20] H. Bley,L. Weyand,A. Luft. An alternative approach for the cost-efficient laser welding of zinc-coated sheet metal[J]. Annals of the CIRP,2007,56(1):17-20

[21] Gao Shaofeng,Tang Xinhua,Xi Shengyin. The laser welding technology of three-layer zinc coated sheet[J]. Welding & Joining,2006,(1):52-55

[22] A. Loredo,B. Martin,H. Andrzejewski et al.. Numerical support for laser welding of zinc-coated sheets process development[J]. Applied Surface Science,2002,195(1-4):297-303

[23] Dominique Grevey,Pierre Sallamand,Eugen Cicala et al.. Gas protection optimization during Nd:YAG laser welding[J]. Optics & Laser Technology,2005,37(8):647-651

[24] Li Mingxing,Hu Zhihua,Chen Kai. The effect of shielding gas type on laser weldability of galvanized steel[J]. Laser Journal,2006,27(6):72-73

[25] Li Guohua,Jia Shijun,Douglas Steyer et al.. Effect of side assist gas orientation on high-power CO2 laser welding formation[J]. Hot Working Technology,2007,36(19):23-25

[26] Zhang Linjie,Zhang Jianxun,Duan Aiqin. Effect of side gas on laser induced plasma during laser deeppenetration welding[J]. Transactions of the China Welding Institution,2006,27(10):37-41

[27] Qiang Wu,Jinke Gong,Genyu Chen et al.. Research on laser welding of vehicle body[J]. Optics & Laser Technology,2008,40(2):420-426

[28] Wu Qiang,Xu Lanying,Chen Genyu et al.. Experimental study about CO2 laser welding of galvanized sheet[J]. Laser Technology,2007,31(6):571-574

[29] Wu Qiang,Chen Genyu,Xu Lanying et al.. CO2 laser welding of vehicle body[J]. Chinese J. Lasers,2007,34(12):1726-1731

[30] A. K. Dasgupta,J. Mazumder,P. Li. Physics of zinc vaporization and plasma absorption during CO2 laser welding[J]. J. Appl. Phys.,2007,102(5):053108

[31] Xie J. Dual beam laser welding[J]. Welding J.,2002,81(10):223-230

[32] Roland-Lee F. Laser welding with dual wavelength technology[OB]. Newsletter of Fraunhofer USA,Spring,2001

[33] Xie J,Denny P. Galvanized steel joined with lasers[J]. Welding J.,2001,80(6):59-61

[34] Li Liqun,Chen Yanbin,Tao Wang. Research on dual-beam welding characteristics of aluminum alloy[J]. Chinese J. Lasers,2008,36(11):1783-1788

[35] Bi Jijun. Mixing two laser welding technology can improve the welding quality[J]. Laser and Optoelectronics Progress,2002,39(3):49-51

[36] Joachim Milberg,Andreas Trautmann. Defect-free joining of zinc-coated steels by bifocal hybrid laser welding[J]. Prod. Eng. Res. Devel.,2009,3(1):9-15

[37] Tzeng Yihfong. Gap-free lap welding of zinc-coated steel using pulsed CO2 laser[J]. Int. J. Adv. Manuf. Technol.,2006,29(3-4):287-295

[38] Y. F. Tzeng. Process characterization of pulsed Nd:YAG laser seam welding[J]. Int. J. Adv. Manuf. Technol.,2000,16(1):10-18

[39] Y. F. Tzeng. Pulsed Nd:YAG laser seam welding of zinc-coated steel[J]. Welding J.,1999,78(7):238-244

[40] Yih-Fong Tzeng. Parametric analysis of the pulsed Nd:YAG laser seam-welding process[J]. J. Mater. Proc. Technol.,2000,102(1-3):40-47

[41] Y. F. Tzeng. Effects of operating parameters on surface quality forthe pulsed laser welding of zinc-coated steel[J]. J. Mater. Proc. Technol.,2000,100(1-3):163-170

[42] Bilge U,Jurczyszyn C E,Jenuwine W C. Laser Welding Method[P]. U.S. Patent 5183992,1993-02-02

[43] Banas C M,Doyle B M. Twin Spot Laser Welding[P]. U.S. Patent 4691093,1987-09-01

[44] Stol I,Martukanitz R P. Laser Welding with Beam Oscillation[P]. U.S. Patent 6740845,2004-05-25

[45] A. Kaplan. A model of deep penetration laser welding based on calculation of the keyhole profile[J]. J. Phys. D,1994,27(9):1805-1814

[46] Yi Zhang,Genyu Chen,Haiying Wei et al.. A novel “sandwich” method for observation of the keyhole in deep penetration laser welding[J]. Opt. & Laser Eng.,2008,46(2):133-139

[47] Zhang Wei,Xiong Jiangang,Li Zhiyuan. Research progress of modeling deep penetration laser welding[J]. Applied Laser,2000,20(5):205-208

[48] Feng Xiaosong,Chen Yanbin,Li Liqun. Temperature filed simulation of laser brazing for galvanized steel sheets[J]. Acta Metallurgica Sinica,2006,42(8):882-886

[49] Lü Xueqin,Zhang Ke,Wu Yixiong. Condition and expectation of automatic weld seam tracking system[J]. Chinese J. Mechanical Engineering,2003,39(12):80-85

[50] Ye Jianxiong,Zhang Hua,Yang Wuqiang. Adaptive fuzzy controller based on variable universe for seam tracking[J]. Transactions of the China Welding Institution,2005,26(12):32-34

[51] Xi Feng,Song Yonglun. Study of weld tracking control system based on visual sensor[J]. Instrument Technique and Sensor,2006,(5):30-31,34

[52] Du Dong,Wang Shenghua,Wang Li et al.. Study of vision sensing technology in seam recognition based on analyzing target feature[J]. Transactions of the China Welding Institution,2008,29(10):108-112

[53] Qin Guoliang,Lin Shangyang,Qi Xiubin et al.. Study status and development of real-time process monitoring for laser welding[J].Welding & Joining,2002,(10):5-8,40

[54] Zeng Hao,Zhou Zude,Chen Youping et al.. The progress of in-process monitoring and quality control of laser welding[J]. Laser Journal,2000,21(1):2-5