Analysis of material flow and heat transfer in friction stir welding of aluminium alloys
A Three-dimensional viscous-plastic finite element model is established based on fluid dynamics to analyze the material flow and heat transfer in friction stir welding of aluminium alloys. The material during the welding process is considered as non-Newtonian fluid abided by Norton-Hoff constitutive law, and viscous dissipation is assumed as the unique heat source. The model is used to do numerical simulation on a individual parameter of friction stir welding, and captured some useful process characteristics, such as heat generation, temperature distribution and fluid flow; besides, the velocity field is used to calculate streamlines of material flow. The effect of the welding velocity and rotation velocity on the simulation result is discussed at last to obtain a better understanding of material flow and heat generation in friction stir welding process.
Friction Stir Welding Flow Modeling CFD
H. Su C. S. Wu
MOE Key Lab for Liquid-Solid Structure Evolution and Materials Processing, and Institute of Materials Joining, Shandong University, Jinan, China
国际会议
济南
英文
1-16
2012-08-24（万方平台首次上网日期，不代表论文的发表时间）