Numerical simulation and experimental study of melt pool morphology for laser cladding of inclined substrates

Hanlin Huang; Shanming Luo; Li Zhou; Xuefeng Chang

doi:10.1117/12.2688950

18 July 2023 Numerical simulation and experimental study of melt pool morphology for laser cladding of inclined substrates

Hanlin Huang, Shanming Luo, Li Zhou, Xuefeng Chang

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Proceedings Volume 12744, Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023); 127440P (2023) https://doi.org/10.1117/12.2688950
Event: Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023), 2023, Nanjing, China

Abstract

In order to investigate the effect of substrate on the shape of the laser cladding pool, this paper established the numerical simulation model of laser cladding on inclined substrates based on multiphase flow theory. VOF method was adopted to capture the gas-liquid interface. The effect of substrate incline on energy distribution and powder concentration is considered, and the mass and energy input are simulated by adding a source term to the melt pool surface. Finally, comparative experiments are designed to validate the model. The results show that the molten pool showed an obvious inward flow pattern. As the incline angle increases, the laser energy density and powder concentration distribution decreases, and the height and width of the cladding layer decreases. The average deviation between the experimental and simulated values was controlled at 5.8% and 3.7%, respectively, and the model had good explanatory power.

Citation Download Citation

Hanlin Huang, Shanming Luo, Li Zhou, and Xuefeng Chang "Numerical simulation and experimental study of melt pool morphology for laser cladding of inclined substrates", Proc. SPIE 12744, Second International Conference on Advanced Manufacturing Technology and Manufacturing Systems (ICAMTMS 2023), 127440P (18 July 2023); https://doi.org/10.1117/12.2688950

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KEYWORDS

Cladding

Numerical simulations

Metals

Laser processing

Optical simulations

Boundary conditions

Convection

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