点击次数：

论文类型：期刊论文

发表时间：2015-06-01

发表刊物：INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY

收录刊物：SCIE、EI、Scopus

卷号：78

期号：9-12

页面范围：1371-1380

ISSN号：0268-3768

关键字：Friction stir welding; Eulerian model; Fatigue stress; Tool force

摘要：Computational fluid dynamic model of the friction stir welding process was established. Forces acting on the welding tool were computed according to the obtained pressure fields. The obtained transverse force on the welding tool can be validated by comparison of both experimental and numerical results in published literatures. Analytical methods for the calculation of the fatigue stresses on the welding tool were then proposed. The analytical methods were compared to the finite element model for validations. Results indicate that the frictional force on the shoulder contact surface takes the main contribution to the transverse force on the welding tool. The maximum fatigue stress on the pin is decreased with the increase of the rotating speed and increased with the increase of the transverse speed.