Analysis of material flow and heat transfer in friction stir welding of aluminium alloys  

作　　者：宿浩 武传松 陈茂爱 

机构地区：[1]MOE Key Laboratory for Liquid-Solid Structural Evolution and Material Processing, and Institute of Malerial Joining, Shandong University, Jinan, 250061

出　　处：《China Welding》2013年第1期6-10,共5页中国焊接（英文版）

摘　　要：A three-dimensional viscous-plastic.finite element model is established based on computational fluid mechanics. 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 numerically simulate the material flow and heat transfer in friction stir welding, and capture 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, and the dimension of the deformation zone is measured.A three-dimensional viscous-plastic.finite element model is established based on computational fluid mechanics. 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 numerically simulate the material flow and heat transfer in friction stir welding, and capture 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, and the dimension of the deformation zone is measured.

关 键 词：friction stir welding material flow heat transfer modeling 

分 类 号：TG409[金属学及工艺—焊接] TU27[建筑科学—建筑设计及理论]