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The International Journal of Advanced Manufacturing Technology

Erschienen in:

11.02.2020 | ORIGINAL ARTICLE

The effect of temperature alternating load on residual stresses for Al-Li alloy T-joints welded by dual laser beam bilateral synchronous welding

verfasst von: Shuhao Tian, Wenhua Chen, Youfa Wu, Yanqiu Zhao, Xiaohong Zhan

Erschienen in: The International Journal of Advanced Manufacturing Technology | Ausgabe 1-2/2020

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Abstract

The finite element (FE) simulation is employed to predict the residual stresses, which is induced by the welding and the temperature alternating load. The simulation of 5A90 Al-Li alloy T-joint welded by the dual laser beam bilateral synchronous welding (DLBSW) is carried out. Then the evolution of the residual stresses is obtained under the temperature alternating load which is achieved by changing the ambient temperature on T-joint. In addition, the accuracy of simulation model has been verified by comparing the experimental results with the simulation results. According to the comparison, the simulation results are consistent with the experimental results, which shows that the residual stresses of 5A90 T-joints decrease under the temperature alternating load. Besides, the FE simulation is a relatively efficient and accurate method to predict the change of residual stresses under the temperature alternating load.

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Titel: The effect of temperature alternating load on residual stresses for Al-Li alloy T-joints welded by dual laser beam bilateral synchronous welding
verfasst von: Shuhao Tian
Wenhua Chen
Youfa Wu
Yanqiu Zhao
Xiaohong Zhan
Publikationsdatum: 11.02.2020
Verlag: Springer London
Erschienen in: The International Journal of Advanced Manufacturing Technology / Ausgabe 1-2/2020
Print ISSN: 0268-3768
Elektronische ISSN: 1433-3015
DOI: https://doi.org/10.1007/s00170-020-04955-1

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