[4] [4] GOYAL R, DUBEY A K．Modeling and optimization of geometrical characteristics in laser trepan drilling of titanium alloy［J］．Journal of Mechanical Science and Technology, 2016, 30(3): 1281-1293．

[5] [5] UTZA O, SANNER N, CHIMIER B, et al．Control of material removal of fused silica with single pulses of few optical cycles to sub-picosecond duration［J］．Applied Physics A Materials Science & Processing, 2011, 105(1): 131-141．

[6] [6] ROMOLI L, RASHED C A A, LOVICU G, et al．Ultrashort pulsed laser drilling and surface structuring of microholes in stainless steels［J］．CIRP Annals Manufacturing Technology, 2014, 63(1): 229-232．

[12] [12] ARIF ABUL F M．On the Modeling of laser as a moving distributed volumetric heat source for laser cutting simulation［J］． Advanced Materials Research, 2010(83-86): 858-865．