Numerical simulation of molten pool dynamics in high power disk laser welding

作者: Won-Ik Cho , Suck-Joo Na , Claus Thomy , Frank Vollertsen

DOI: 10.1016/J.JMATPROTEC.2011.09.011

关键词: Laser beam weldingHeat transferComputer simulationShear stressWeld poolMechanicsMetallurgyBuoyancyMaterials scienceKeyholeFree surface

摘要: … ► This paper describes the modeling process of heat source and driving forces in disk laser welding to analyze the heat transfer and fluid flow in weld pool. ► Calculated fusion zone …

参考文章(25)
Tarasankar Debroy, T. Zacharia, S. A. David, J. M. Vitek, Weld pool development during GTA and laser beam welding of Type 304 stainless steel; Part I - theoretical analysis Welding Journal. ,vol. 68, ,(1989)
Frank P. Incropera, David P. DeWitt, Introduction to Heat Transfer ,(1985)
M. Schmidt, A. Otto, C. Kägeler, Analysis of YAG laser lap-welding of zinc coated steel sheets CIRP Annals. ,vol. 57, pp. 213- 216 ,(2008) , 10.1016/J.CIRP.2008.03.043
E H Amara, A Bendib, Modelling of vapour flow in deep penetration laser welding Journal of Physics D. ,vol. 35, pp. 272- 280 ,(2002) , 10.1088/0022-3727/35/3/317
Stanley Osher, James A Sethian, Fronts propagating with curvature-dependent speed: algorithms based on Hamilton-Jacobi formulations Journal of Computational Physics. ,vol. 79, pp. 12- 49 ,(1988) , 10.1016/0021-9991(88)90002-2
John Dowden, Michael Davis, Phiroze Kapadia, Some aspects of the fluid dynamics of laser welding Journal of Fluid Mechanics. ,vol. 126, pp. 123- 146 ,(1983) , 10.1017/S0022112083000075
Jung-Ho Cho, Suck-Joo Na, Implementation of real-time multiple reflection and Fresnel absorption of laser beam in keyhole Journal of Physics D. ,vol. 39, pp. 5372- 5378 ,(2006) , 10.1088/0022-3727/39/24/039
Jung-Ho Cho, Suck-Joo Na, Theoretical analysis of keyhole dynamics in polarized laser drilling Journal of Physics D. ,vol. 40, pp. 7638- 7647 ,(2007) , 10.1088/0022-3727/40/24/007