[1] [1] GU C X, GU H W, LI W G, et al. Research status of laser cladding technology in ship engineering［J］. Ship Engineering, 2019, 41(1): 7478.

[2] [2] LU Y Z, YU R D, WANG J. Summary of application of laser cladding technology in rehabilitation of large equipment［J］. Modern Manufacturing Technology and Equipment, 2019(10): 163164.

[3] [3] ZHANG J C, SHI S H, GONG Y Q, et al. Research progress of laser cladding technology［J］. Surface Technology, 2020, 49(10): 111.

[4] [4] ZHU G X, SHI S H, FU G Y, et al. The influence of the substrateinclined angle on the section size of laser cladding layers based on robot with the insidebeam powder feeding［J］. The International Journal of Advanced Manufacturing Technology, 2017, 88(5): 21632168.

[5] [5] YIN Y J, YANG W, LIU J Y, et al. The effects of substrate tilt and coaxial nozzle deflection on laser cladding morphology and powder utilization rate［J］. Applied Laser, 2020, 40(5): 800805.

[6] [6] LI X B, LI T, SHI B W, et al. The influence of substrate tilt angle on the morphology of laser cladding layer［J］. Surface and Coatings Technology, 2020, 391: 125706.

[7] [7] ONWUBOLU G C, DAVIM J P, OLIVEIRA C, et al. Prediction of clad angle in laser cladding by powder using response surface methodology and scatter search［J］. Optics & Laser Technology, 2007, 39(6): 11301134.

[8] [8] TORIMS T, RATKUS A. Study of the impact of the powder laser cladding position on the parameters of the cladded layer［J］. Proceedings of the Estonian Academy of Sciences, 2020, 69(3): 257.

[9] [9] PAUL C P, MISHRA S K, KUMAR A, et al. Laser rapid manufacturing on vertical surfaces: Analytical and experimental studies［J］. Surface and Coatings Technology, 2013, 224: 1828.

[10] [10] HE Y, WEI J C, LIU J Y, et al. Experimental study on the fabrication profile and mechanical properties by substrateinclined angle using laser melting deposition (LMD) integrating with the substrate of stainless steel［J］. Optics & Laser Technology, 2020, 125: 106038.

[11] [11] HAO J B, MENG Q D, LI C C, et al. Effects of tilt angle between laser nozzle and substrate on bead morphology in multiaxis laser cladding［J］. Journal of Manufacturing Processes, 2019, 43: 311322.

[12] [12] ZHU S C, CHEN W L, DING L P, et al. A mathematical model of laser cladding repair［J］. The International Journal of Advanced Manufacturing Technology, 2019, 103(9): 32653278.

[13] [13] ZHANG G, SUN W L, ZHAO D M, et al. Effect of laser beam incidence angle on cladding morphology in laser cladding process［J］. Journal of Mechanical Science and Technology, 2020, 34(4): 15311537.

[14] [14] BRACKBILL J U, KOTHE D B, ZEMACH C. A continuum method for modeling surface tension［J］. Journal of Computational Physics, 1992, 100(2): 335354.

[15] [15] LIU Y, ZHANG J, PANG Z C. Numerical and experimental investigation into the subsequent thermal cycling during selective laser melting of multilayer 316L stainless steel［J］. Optics Laser Technology, 2018, 98: 2332.

[16] [16] JIANG Y C, CHENG Y H, ZHANG X C, et al. Simulation and experimental investigations on the effect of Marangoni convection on thermal field during laser cladding process［J］. Optik, 2020, 203: 164044.

[17] [17] WANG P F, YANG K, CHEN M Z, et al. Simulation and experimental research on the GH3536 molten pool laser cladding on inclined substrate［J］. Chinese Journal of Lasers, 2021, 48(10): 1002121.

[18] [18] MACDOUGALL G, OCKRENT C. Surface energy relations in liquid/solid systems I. The adhesion of liquids to solids and a new method of determining the surface tension of liquids［J］. Proceedings of the Royal Society of London Series A Mathematical and Physical Sciences, 1942, 180(981): 151173.

[19] [19] ZHU X, FAN Y, LIAO Q, et al. Numerical simulation for drop shape on the surface with gradient surface energy［J］. Journal of Engineering Thermophysics, 2007, 28(3): 484486.

[20] [20] EXTRAND C W, KUMAGAI Y. Liquid drops on an inclined plane: The relation between contact angles, drop shape, and retentive force［J］. Journal of Colloid and Interface Science, 1995, 170(2): 515521.

[21] [21] WU J Z, ZHU G X, LU B, et al. Influence of selfregulationeffect on forming quality of thinwalled parts with variable laser spot cladding［J］. Journal of Xi′an Jiaotong University, 2016, 50(1): 145150.