首页|Quality assessment of friction-stir-welded aluminum alloy welds via three-dimensional force signals

Quality assessment of friction-stir-welded aluminum alloy welds via three-dimensional force signals

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An online detection technology must be devel-oped for realizing the real-time control of friction stir weld-ing.In this study,the three-dimensional force exerted on a material during friction stir welding was collected synchro-nously and the relationship between the forces and weld-ing quality was investigated.The results indicated that the fluctuation period of the traverse force was equal to that of the lateral force during the stable welding stage.The phase difference between two horizontal forces was n/2.The val-ues of the horizontal forces increased with welding speed,whereas their amplitudes remained the same.The proposed force model showed that the traverse and lateral forces con-formed to an elliptical curve,and this result was consist-ent with the behavior of the measured data.The variational mode decomposition was used to process the plunge force.The intrinsic mode function that represented the real fluc-tuation in the plunge force varied at the same frequency as the spindle rotational speed.When tunnel defects occurred,the fluctuation period features were consistent with those obtained during normal welding,whereas the ratio param-eter defined in this study increased significantly.

Friction stir welding(FSW)Three-dimensional force modelVariational mode decompositionTunnel defect

Ji-Hong Dong、Yi-Ming Huang、Jia-Lei Zhu、Wei Guan、Xu-Kai Ren、Huan-Wei Yu、Lei Cui

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Beijing Institute of Petrochemical Technology,Beijing 102617,People's Republic of China

Beijing Academy of Safety Engineering and Technology,Beijing 102617,People's Republic of China

AVIC Manufacturing Technology Institute,Beijing 100024,People's Republic of China

Tianjin Key Laboratory of Advanced Joining Technology,School of Materials Science and Engineering,Tianjin University,Tianjin 300350,People's Republic of China

Shaoxing Special Equipment Testing Institute,Shaoxing Key Laboratory of Special Equipment Intelligent Testing and Evaluation,Shaoxing 312071,Zhejiang,People's Republic of China

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国家自然科学基金中国博士后科学基金国家自然科学基金

522010482020M67065152075376

2024

10.1007/s40436-023-00452-2

先进制造进展(英文版)

先进制造进展(英文版)

ISSN：
年,卷(期)：2024.12(1)
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