Imperial College London
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DrZhushengShi

Faculty of Engineering, Department of Mechanical Engineering

Advanced Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 1806zhusheng.shi

 
 
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Location

 

705City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wang:2023:10.1007/s00170-022-10607-3,
author = {Wang, X and Rong, Q and Shi, Z and Lin, J},
doi = {10.1007/s00170-022-10607-3},
journal = {The International Journal of Advanced Manufacturing Technology},
pages = {1115--1133},
title = {An efficient closed-form solution for springback prediction and compensation in elastic–plastic creep age forming},
url = {http://dx.doi.org/10.1007/s00170-022-10607-3},
volume = {125},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Accurately predicting the amount of springback has always been a prior focus in metal forming industry, particularly for creep age forming (CAF), for its significant effect on tool cost and forming accuracy. In this study, a closed-form solution for CAF springback prediction covering deformation from elastic to plastic loadings was developed by combining the beam theory and Winkler’s theory, based on which an efficient springback compensation method for CAF was proposed. This developed solution extends the application area beyond the traditional beam theory-based springback prediction methods, maintaining its validity with large loading deflection in plastic range. Finite element (FE) simulation and four-point bending CAF tests adopting a 3rd generation Al-Li alloy were conducted in both elastic and plastic forming regions and the results showed close agreement with the closed-form springback predictions. For the proposed compensation method, an adjustment factor was introduced for complex flexible tool CAF to consider its deviation from the uniform stress loading and can be obtained using the closed-form solution. The flexible tool CAF tests using the Al-Li alloy demonstrated the applicability of the proposed compensation method to obtain the target shape within reasonable iterations, which can be further reduced by combining FE simulation.
AU  - Wang,X
AU  - Rong,Q
AU  - Shi,Z
AU  - Lin,J
DO  - 10.1007/s00170-022-10607-3
EP  - 1133
PY  - 2023///
SN  - 0268-3768
SP  - 1115
TI  - An efficient closed-form solution for springback prediction and compensation in elastic–plastic creep age forming
T2  - The International Journal of Advanced Manufacturing Technology
UR  - http://dx.doi.org/10.1007/s00170-022-10607-3
UR  - http://hdl.handle.net/10044/1/102000
VL  - 125
ER  -
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