Application of FSW technology in the manufacture of the high speed train

HOU Jianying; DU Jianqiang; WANG Haisheng; SONG Mingyang

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Application of FSW technology in the manufacture of the high speed train
Vol. 48, Issue 3, Pages: 337-340(2018)
Published：2018
DOI：
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DOI：

HOU Jianying, DU Jianqiang, WANG Haisheng, et al. Application of FSW technology in the manufacture of the high speed train[J]. Eletric Welding Machine2018, 48(3): 337-340. DOI：

摘要

介绍搅拌摩擦焊的技术特点和发展情况

针对某高速动车组车辆车钩面板结构形式

提出了一种大厚度的搅拌摩擦焊焊接接头结构。为了验证其接头性能

将搅拌摩擦焊接头与采用双V型35°坡口对接MIG焊接接头在力学性能、疲劳特性、弯曲性能以及金相组织等方面进行对比试验

结果表明:搅拌摩擦焊接头性能优于MIG焊接接头

建议在高速动车组上推广使用

并对后续研究提出要求。

Abstract

The technical features and the development of Friction Stir Welding（FSW） were introduced in this paper. A thick FSW joint structure was illustrated for a car coupler panel structure of the high speed train. The mechanical property

fatigue property

bending property and metallographic structure of the FSW joints were compared with those of the double V-groove MIG butt joints in order to validate the properties of its welded joints. The results showed that the FSW joints had better performance than the MIG joints. The FSW can be used in the manufacture of the high speed train and the further research direction is also be proposed.