[1] Yang S J, Dai S L. A glimpse at the development and application of aluminum alloys in aviation industry[J]. Materials Review, 19, 76-80(2005).

[2] Fu B L, Meng X M, Qin G L et al[J]. Research progress on laser beam welding of aluminum alloys Welding & Joining, 2013, 20-25, 69.

[3] Wang H Y, Sun J, Liu L M. Formation and controlling mechanism of pores in laser-TIG hybrid welding of 6061-T6 aluminum alloys at high peed[J]. Chinese Journal of Lasers, 45, 0302001(2018).

[4] Li F Q, Feng S, Li M W et al. Softening phenomenon of heat-affected zone in laser welding of 6082 Al alloys with filler wire[J]. Chinese Journal of Lasers, 45, 1102007(2018).

[5] Tuo W H, Yang S L, Yang W T et al. Microstructure and fatigue performance of MIG welded joint of 6082-T6 aluminum alloy used for rail transportation[J]. Materials Reports, 29, 105-109(2015).

[6] Tan X H, Zhang J, Shan J G et al. Characteristics and formation mechanism of porosities in CFRP during laser joining of CFRP and steel[J]. Composites Part B: Engineering, 70, 35-43(2015). http://www.sciencedirect.com/science/article/pii/S135983681400479X

[7] Zhang X D, Chen W Z, Bao G et al. Improvement of weld quality using a weaving beam in laser welding[J]. Journal of Materials Science & Technology, 20, 633-636(2004). http://www.cqvip.com/QK/84252X/20045/11196558.html

[8] Zhou L T, Wang X Y, Wang Wet al. Effects of laser scanning welding process on porosity rate of aluminum alloy[J]. 35(10): 65-68, 72, 116(2014).

[9] Fetzer F, Sommer M, Weber R et al. Reduction of pores by means of laser beam oscillation during remote welding of AlMgSi[J]. Optics and Lasers in Engineering, 108, 68-77(2018). http://www.sciencedirect.com/science/article/pii/S0143816617313556

[10] Wu S C, Zhu Z T, Li X W[M]. Laser welding of aluminum alloys and the performance evaluation, 66(2014).

[11] Bao G, Peng Y, Chen W Z et al. Study on laser welding of ultra-fine grained steel with weaving beam[J]. Applied Laser, 22, 203-205, 208(2002).

[12] Hugger F, Hofmann K, Kohl S et al. Spatter formation in laser beam welding using laser beam oscillation[J]. Welding in the World, 59, 165-172(2015). http://link.springer.com/10.1007/s40194-014-0189-9

[13] Jiao J K, Wang Q, Wang F Y et al. Numerical and experimental investigation on joining CFRTP and stainless steel using fiber lasers[J]. Journal of Materials Processing Technology, 240, 362-369(2017). http://www.sciencedirect.com/science/article/pii/S0924013616303624

[14] Wang Q, Jiao J K, Zan S P et al. Effect of thermal contact conductance on temperature field of CFRTP/stainless steel laser direct joining[J]. Chinese Journal of Lasers, 44, 0402002(2017).

[15] Zheng Z T, Lü H M, Zhang K et al[J]. Fusion welding heat source model and its trend Welding & Joining, 2008, 3-6.

[16] Haeusler A, Schürmann A, Schöler C et al. Quality improvement of copper welds by laser microwelding with the usage of spatial power modulation[J]. Journal of Laser Applications, 29, 022422(2017).