[2] [2] PANDEY A K, DUBEY A K.Simultaneous optimization of multiple quality characteristics in laser cutting of titanium alloy sheet［J］.Optics & Laser Technology, 2012, 44(6): 1858-1865.

[3] [3] SCINTILLA L D, PALUMBO G, SORGENTE D, et al.Fiber laser cutting of Ti6Al4V sheets for subsequent welding operations: Effect of cutting parameters on butt joints mechanical properties and strain behaviour［J］.Materials & Design, 2013, 47(9): 300-308.

[5] [5] 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.

[6] [6] SCINTILLA L D, SORGENTE D, TRICARICO L.Experimental Investigation on Fiber Laser Cutting of Ti6Al4V Thin Sheet［J］.Advanced Materials Research, 2011(264-265): 1281-1286.

[15] [15] ARIF A F.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.