3D Finite Element Analysis of the Effect of Process Parameters on Linear Friction Welding of Mild Steel

被引：34

作者：

Li, Wenya ^{[1
]}

Wang, Feifan ^{[1
]}

Shi, Shanxiang ^{[1
]}

Ma, Tiejun ^{[1
]}

Li, Jinglong ^{[1
]}

Vairis, Achilleas ^{[2
]}

机构：

[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, State Key Lab Solidificat Proc, Shaanxi Key Lab Frict Welding Technol, Xian 710072, Shaanxi, Peoples R China

[2] TEI Crete, Dept Mech Engn, Iraklion 71004, Crete, Greece

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2014年 / 23卷 / 11期

基金：

中国国家自然科学基金;

关键词：

explicit-implicit alternate method; linear friction welding; mild steel; numerical simulation; thermo-mechanically coupled model; TI-6AL-4V; MICROSTRUCTURE; FLASH;

D O I：

10.1007/s11665-014-1197-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, a 3D numerical model was developed to investigate the complicated thermo-mechanically coupled process of linear friction welding (LFW). The explicit-implicit alternate method was adopted for the first time to simulate LFW mild steel based on the ABAQUS software. To cope with the excessive element distortion, remeshing was conducted at certain calculation time with the help of the HYPERWORKS software. Results show that the interface temperature is quickly increased to near 900 degrees C within 1 s. With increasing the welding time, the interface temperature reaches a quasi-steady state of about 950 degrees C and the axial shortening rate keeps almost constant. A final unilateral axial shortening of 2.73 mm was obtained under the experiment condition, which corresponds well to the experiment. Moreover, the effects of processing parameters (oscillation frequency, oscillation amplitude, and friction pressure) on the joint temperature evolution and axial shortening were systematically examined and discussed. These three parameters could be integrated into one factor, i.e., heat input to the interface.

引用

页码：4010 / 4018

页数：9