Effect of tool geometry on material flow behavior of friction stir welding of Titanium alloy
(0) On basis of the RNG k-ε model,the fmite volume model of friction stir welding of Ti6Al4V alloy is established by the ANSYS FLUENT software.The effect of rotational tool geometry on titanium alloy flow behaviour is attained.The results of numerical simulation show that the flow direction of material near the rotational tool is the same as that of rotational tools rotational direction.The flow velocity of material near the rotational tool is much bigger than that of other region in weldment while the peak value appears near the edge of shoulder.Changing only the rotational tool shoulders diameter or the pin tips diameter unchanges the flow direction of material during the welding process.With the increase of diameter of shoulder and pin tip,the material flow velocity increases.From the view of elimination of root defects,increasing the diameter of pin tip is better than increasing the diameter of shoulder.
Friction stir welding Titanium alloy material flow rotational tool geometry
Ji Shude Zhagn Liguo Yue Yumei Jin YanYe LV Zan
School of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136 School of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136; Shenyang Aircraft D
国际会议
上海
英文
231-231
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）