Research Progress of Bobbin Tool Friction Stir Welding of Aluminum Alloys:A Review |
| |
Authors: | Guo-Qing Wang Yan-Hua Zhao Ying-Ying Tang |
| |
Affiliation: | 1. China Academy of Launch Vehicle Technology, Beijing 100076, China;2. Capital Aerospace Machinery Company, Beijing 100076, China |
| |
Abstract: | Bobbin tool friction stir welding(BT-FSW) is a variant of conventional friction stir welding(FSW). It can be used to weld complex curvature structures and closed sections by adding an extra shoulder instead of a rigid backing anvil, which expands the potential application of FSW in aerospace, railway, automotive and marine industries. BT-FSW has some signifi cant advantages over conventional FSW such as no root fl aws, full weld penetration, low stiff ness requirements for machines and fi xtures, balanced heat input, lower distortion and thus has broad prospects for development. At present, there have been numerous research reports on BT-FSW, but its widespread use is still restricted due to various factors such as tool life, process stability, control complexity and implementation cost. In this paper, the domestic and foreign research progress of BT-FSW is reviewed from four aspects of bobbin tool design and classifi cation, temperature fi eld and fl ow fi eld during welding, microstructure and mechanical properties of welded joints as well as industrial application, and then the possible research hotspots of BT-FSW in the future are pointed out. This paper mainly aims to help researchers have a comprehensive and in-depth understanding of BT-FSW. |
| |
Keywords: | Bobbin tool Temperature field Flow field Microstructure Mechanical properties Application |
本文献已被 CNKI 万方数据 等数据库收录! |
| 点击此处可从《金属学报(英文版)》浏览原始摘要信息 |
|
点击此处可从《金属学报(英文版)》下载全文 |
|