Abstract
To reduce the springback after sheet stamping, two forming processes which include electromagnetic forming (EMF) were designed. Compared with traditional electromagnetic-assisted stamping (EMAS), the new methods use the same mold structure and control springback without obvious plastic deformation. The ANSYS and ABAQUS software were used to analyze the influence of different discharge voltages on springback in the two forming processes. The simulation results accurately predict the deformation and springback of sheet metal after quasi-static stamping and subsequent EMF. After coil discharge, the sheet oscillates with high frequency and small amplitude and only exhibits insignificant deformation. With the increase of the discharge voltage, the sheet springback angle decreases. The springback inhibition effect of process 1, in which the sheet corners merely touch the coil surface, is greater than that of process 2, where the sheet was pressed close to the coil surface.
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Funding
This work was supported by the National Natural Science Foundation of China (Grant Number: 51775563 and 51405173), Innovation Driven Program of Central South University (Grant Number: 2019CX006), the Project of State Key Laboratory of High Performance Complex Manufacturing, Central South University (ZZYJKT2020-02).
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Wenzhen Xia: Conceptualization, Simulation, experiments, Writing—original draft.
Xiaohui Cui: Conceptualization, Validation, Writing—review and editing, Funding acquisition.
Zhihao Du: Investigation, Formal analysis.
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Xia, W., Cui, X., Du, Z. et al. Springback control with small vibration using electromagnetic forming. Int J Adv Manuf Technol 118, 3133–3145 (2022). https://doi.org/10.1007/s00170-021-08152-6
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DOI: https://doi.org/10.1007/s00170-021-08152-6