[1] Zhang J, Tang W P, Du Y. Technical research of nozzle spray hole [J]. Modern Vehicle Power, 2010(1): 43-46. (in Chinese) doi:  10.3969/j.issn.1671-5446.2010.01.012
[2] Kautek W, Jörg K, Lenzner M, et al. Laser ablation of dielectrics with pulse durations between 20 fs and 3 ps [J]. Applied Physics Letters, 1996, 69(21): 3146-3148. doi:  10.1063/1.116810
[3] Sun S F, Ji S M, Tan D P, et al. Abrasive assisted EDM & ECM compound machining [J]. Journal of Mechanical Engineering, 2012: 159-164. (in Chinese)
[4] Fornaroli C, Holtkamp J, Gillner A. Laser-beam helical drilling of high quality micro holes [J]. Physics Procedia, 2013, 41: 654-662.
[5] Zhang Z, Wang W, Jiang R, et al. Investigation on geometric precision and surface quality of microholes machined by ultrafast laser [J]. Optics & Laser Technology, 2020, 121: 105834.
[6] Duan W Q, Wang K D, Dong X, et al. Study on machining of high-quality micro-holes by laser trepan drilling [J]. Journal of Xi'an Jiaotong University, 2015(3): 95-103, 112. (in Chinese) doi:  10.7652/xjtuxb201503016
[7] Zhao H L, Zhou R K, Zhao W, et al. The design of reflective scanning device for drilling the inverted cone micro-hole with femtosecond laser pulses [J]. Acta Photonica Sinica, 2014, 43(9): 0914006. (in Chinese)
[8] Wang F, Luo J J, Li M. High-precision metod of machining taper holes of diesel engine nozzle with femtosecond laser [J]. Acta Photonica Sinica, 2014, 43(4): 0414003. (in Chinese)
[9] Xia B, Jiang L, Wang S M, et al. Femtosecond laser drilling of micro-holes [J]. Chinese Journal of Lasers, 2013, 40(2): 0201001. (in Chinese)
[10] Li L, Low D K Y, Ghoreshi M, et al. Hole taper characterisation and control in laser percussion drilling [J]. CIRP Annals-Manufacturing Technology, 2002, 51(1): 153-156. doi:  10.1016/S0007-8506(07)61488-7
[11] Ren N F, Zhang L, Wang H X, et al. Orthogonal experiments and variance analysis in Nd…YAG pulsed laser trepanning drilling [J]. Laser & Optoelectronics Progress, 2017, 54(6): 061408. (in Chinese)
[12] Romoli L, Rashed C A A, Fiaschi M. Experimental characterization of the inner surface in micro-drilling of spray holes: A comparison between ultrashort pulsed laser and EDM [J]. Optics & Laser Technology, 2014, 56: 35-42.
[13] Romoli L, Vallini R. Experimental study on the development of a micro-drilling cycle using ultrashort laser pulses [J]. Optics & Lasers in Engineering, 2016, 78: 121-131.
[14] Zheng B, Jiang G, Wang W, et al. Ablation experiment and threshold calculation of titanium alloy irradiated by ultra-fast pulse laser [J]. AIP Advances, 2014, 4(3): 84-91.
[15] Gordienko V M, Zhvaniya I A, Khomenko A S. Dynamics of plasma production and harmonic generation under microchannel drilling in solid target by intense femtosecond laser[C]//Lat: International Conference on Lasers. International Society for Optics and Photonics, 2010.
[16] Zhang Y, Gao X, Katayama S. Weld appearance prediction with BP neural network improved by genetic algorithm during disk laser welding [J]. Journal of Manufacturing Systems, 2015, 34: 53-59. doi:  10.1016/j.jmsy.2014.10.005