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

被引:0
|
作者
宿浩
武传松
陈茂爱
机构
[1] MOEKeyLaboratoryforLiquid-SolidStructuralEvolutionandMaterialProcessing,andInstituteofMaterialJoining
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暂无
中图分类号
TG457.1 [金属材料的焊接];
学科分类号
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.
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页码:6 / 10
页数:5
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