Effect of Peclet Number on the Thermo Capillary Convection and Molten Pool Shape Formation during Laser Welding Using CFD

被引：0
|
作者：
Suthakar, T. [1 ]
Sankaranarayanasamy, K. [1 ]
Balasubramanian, K. R. [1 ,2 ]
Buvanashekaran, G.
Murthy, K. Krishna [1 ]
机构：
[1] Natl Inst Technol, Dept Mech Engn, Tiruchirappalli 620015, Tamil Nadu, India
[2] Welding Res inst BHEL, Tiruchirappalli, Tamil Nadu, India
来源：
MANUFACTURING SCIENCE AND TECHNOLOGY, PTS 1-8 | 2012年 / 383-390卷
关键词：
Laser beam welding; CFD; Peclet Number; Marangoni convection; AISI-304; Finite control volume method; HEAT-TRANSFER; FLUID-FLOW;
D O I：
10.4028/www.scientific.net/AMR.383-390.6231
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A mathematical model is developed for the simulation of keyhole and molten pool formation during laser beam welding. Heat transfer from the key hole to the weld pool and details of the fluid flow play a major role in determining the weld bead profile. The simulation is performed based on the control volume method (CVM) and a volumetric heat source is used to model the laser beam and the equations of mass, momentum and energy are solved. The effect of Peclet number, Marangoni number, and Nusselt number is studied by varying process parameters like welding speed and beam power. The simulated bead profiles are compared with the experimental profile and are found to be acceptable.
引用
收藏
页码：6231 / +
页数：2
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