Finite-element modeling of laser remelting process

Yunchang Fu; Dongxiong Ling; Bruno Martin; Junchang Li

doi:10.1117/12.482911

12 September 2002 Finite-element modeling of laser remelting process

Yunchang Fu, Dongxiong Ling, Bruno Martin, Junchang Li

Proceedings Volume 4915, Lasers in Material Processing and Manufacturing; (2002) https://doi.org/10.1117/12.482911
Event: Photonics Asia, 2002, Shanghai, China

Abstract

In this paper, a finite element model has been developed to numerically calculate the temperature field and velocity field of fluid in laser material remelting process. The effects of fluid flow on the temperature field and the shape of laser pool are investigated carefully and presented graphically to display the subtle changes of temperature field. The numerical results show that (1) in general, there are two opposite vortices in the pool and one is greater than other due to the translation of workpiece; (2) the mainly driven force in the pool is the thermocapillary force compared with the nature convection; (3) the shapes of the molten pools, due to the convection of flow, become flat compared with that without the effect of fluid flow.

Citation Download Citation

Yunchang Fu, Dongxiong Ling, Bruno Martin, and Junchang Li "Finite-element modeling of laser remelting process", Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); https://doi.org/10.1117/12.482911

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