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Proceedings Paper

Finite-element modeling of laser remelting process
Author(s): Yunchang Fu; Dongxiong Ling; Bruno Martin; Junchang Li
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Paper 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.

Paper Details

Date Published: 12 September 2002
PDF: 5 pages
Proc. SPIE 4915, Lasers in Material Processing and Manufacturing, (12 September 2002); doi: 10.1117/12.482911
Show Author Affiliations
Yunchang Fu, Kunming Univ. of Science and Technology (China)
Dongxiong Ling, Kunming Univ. of Science and Technology (China)
Bruno Martin, Univ. de Bourgogne (France)
Junchang Li, Kunming Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 4915:
Lasers in Material Processing and Manufacturing
ShuShen Deng; Tatsuo Okada; Klaus Behler; XingZong Wang, Editor(s)

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