[1] WANG H Y, SUN J, LIU L M. Formation and control mechanism of pores in laser-TIG hybrid welding of 6061-T6 aluminum alloy at high speed[J]. Chinese Journal of Lasers, 2018, 45 (3): 0302001(in Chinese). doi: 10.3788/CJL201845.0302001
[2] LUO Zh, SHAN P, GAO Zh J, et al. Chaos characteristics of electrode displacement signals in spot welding process based on Lyapunov exponent. Transactions of The China Welding Institution, 2006, 27(12): 34-37(in Chinese).
[3] CAO B, LV X Q, ZENG M, et al. Lyapunov exponent analysis of short circuit arc in GMAW[J]. Materials Science and Technology, 2007, 15(3): 301-304(in Chinese).
[4] LV X Q, CAO B, ZENG M, et al. Correlation dimension analysis of short circuit transferred arc[J]. Transactions of the China Welding Institution, 2005, 26(6): 65-68(in Chinese).
[5] HE K F, LI Q, CHEN J. An arc stability evaluation approach for SW AC SAW based on Lyapunov exponent of welding current[J]. Measurement, 2013, 46(1): 272-278. doi: 10.1016/j.measurement.2012.06.014
[6] SONG X H, JIN X Zh, CHEN Sh Q, et al. Progress of laser-arc hybrid welding and its applications in automotive body manufacture[J]. Laser Technology, 2015, 39(2): 259-265(in Chinese).
[7] GUO Y B, WANG B, WANG G D, et al. Research progress and development trend of welding robot[J]. Modern Manufacturing Engineering, 2021(5): 53-63(in Chinese).
[8] LEI Zh, XU L, XU F J, et al. Typical applications and research status of laser-arc hybrid welding technology[J]. Welding & Joining, 2018(12): 1-6 (in Chinese).
[9] HU L H, HUANG J, WU Y X, et al. Study on coupling mechanism and metal transfer in laser double-wire MIG arc hybrid welding[J]. Chinese Journal of Lasers, 2016, 43(6): 0602005 (in Chinese). doi: 10.3788/CJL201643.0602005
[10] CHEN G Y, HE J, ZHONG P X, et al. Study on the porosity control during laser welding of glass[J]. Laser Technology, 2021, 45 (3): 286-291(in Chinese).
[11] WEN P, LI Zh X, ZHANG S, et al. Investigation on porosity, microstructures and performances of 6A01-T5 aluminum alloy joint by oscillating fiber laser-CMT hybrid welding[J]. Chinese Journal of Lasers, 2020, 47(8): 0802003 (in Chinese). doi: 10.3788/CJL202047.0802003
[12] GAO J, CHEN Sh M, WANG K H, et al. Research on the influence of laser power on laser-MIG hybird weld forming[J]. Laser Technology, 2020, 44(2): 178-182(in Chinese).
[13] HUANG R Sh, YANG Y Ch, JIANG B, et al. Analysis of welding characteristics of ultra-high power laser-arc hybrid welding[J]. Transactions of the China Welding Institution, 2019, 40(12): 73-77(in Chinese).
[14] ZHANG Y L, LIU J, SHI Y, et al. Effect of current/voltage matching on stability of laser-arc hybrid welding process for aluminum alloy[J]. Transactions of the China Welding Institution, 2018, 39 (1): 79-83 (in Chinese).
[15] REN W J, ZHENG H J, LI Zh G, et al. Effects of pulse arc on droplet transfer and spatter of laser pulsed-arc hybrid welding[J]. Chinese Journal of Lasers, 2020, 47(4): 0402007 (in Chinese). doi: 10.3788/CJL202047.0402007
[16] KAWAN C. Exponential state estimation, entropy and Lyapunov exponents[J]. Systems and Control Letters, 2018, 113: 78-85. doi: 10.1016/j.sysconle.2018.01.011
[17] BAUMANN M, LEINE R I. Synchronization-based estimation of the maximal Lyapunov exponent of nonsmooth systems[J]. Procedia IUTAM, 2017, 20: 26-33. doi: 10.1016/j.piutam.2017.03.005
[18] WU X Y, XU J X, GAO X S, et al. Numerical simulation of thermal process and fluid flow field in laser-MIG hybrid weld pools[J]. Chinese Journal of Lasers, 2019, 46(9): 0902003(in Chinese). doi: 10.3788/CJL201946.0902003
[19] CHENG Y M, LIANG X M, ZOU J P, et al. Laser-MIG arc hybrid welding of aluminum alloy[J]. Welding & Joining, 2017 (11): 6-9(in Chinese).
[20] XU Ch Y, LIU Sh Y, ZHANG H, et al. Study on the characteristics and mechanics of droplet transfer in laser arc hybrid welding process[J]. Journal of Mechanical Engineering, 2018, 54(6): 154-161(in Chinese). doi: 10.3901/JME.2018.06.154
[21] LI F K. Study on characteristics and droplet transfer behavior of laser MIG arc pulse hybrid welding [D]. Harbin: Harbin Institute of Technology, 2019: 45-52(in Chinese).
[22] HU L H, HUANG J, WU Y X, et al. Study on coupling mechanism and metal transfer in laser double-wire MIG arc hybrid welding[J]. Chinese Journal of Lasers, 2016, 43(6): 0602005(in Chinese). doi: 10.3788/CJL201643.0602005