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| Research Progress on Bobbin Tool Friction Stir Welding |
| WEN Quan1, LI Wenya1, WANG Feifan2, YANG Xiawei1 |
(1. Shaanxi Key Laboratory of Friction Welding Technology, Northwestern Polytechnical University, Xi’an 710072, China；
2. Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China) |
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Abstract Bobbin tool friction stir welding (BT-FSW) is a significant variant of friction stir welding (FSW). The
self-support function is achieved by the lower shoulder of bobbin tool, making FSW easier to join closed structures such
as pipes or hollow extrusions. At present, the research and application of BT-FSW are still in the initial stage, and studies
on it are limited. The state-of-the-art of BT-FSW is reviewed based on the realized welding methods. This review provides
reference for the further development and engineering applications of BT-FSW.
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2017, 
