Abstract
The 3D curved parts rolling based on rigid arc-shaped rollers is a novel plastic forming process for rapidly manufacturing curved parts with double curvature. This work proved that the method can form different types of 3D curved parts through small adjustments of the rolling reduction without replacing the rollers. The study found that when the generatrix radius of the convex roller is smaller than that of the concave roller, the distribution rule of uneven roll gap could vary with the change of the rolling reduction. Therefore, the forming method can change the distribution rule of uneven roll gaps by adjusting the rolling reduction to form different types of curved parts (spherical parts, saddle-shaped parts, or cylindrical parts). The relationship between the rolling reduction and the distribution rule of roll gaps is studied by analytical, finite element, and experiment method. And the influence of the rolling reduction on the bending deformation of different types of curved parts is studied. The research results show that the longitudinal bending deformation of formed curved parts is greatly affected by the rolling reduction. The longitudinal curvature of formed saddle-shaped parts decreases with the increase of the rolling reduction, and the longitudinal curvature of formed spherical parts increases with the increases of the rolling reduction. The transverse bending deformation of formed curved parts is little affected by the rolling reduction.
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This work was financially supported by the Project of Jilin Provincial Scientific and Technological Department (20150201005GX).
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Xiang Chang wrote this article, conducted the experiments, established the finite element model, processed the numerical and experimental data, and analyzed the results. Wenzhi Fu provided valuable suggestions on the study, and was responsible for guiding the work. Mingzhe Li proposed the new forming method, theoretically demonstrated the feasibility of this method, provided valuable suggestions on the study, and was responsible for guiding the work. Xintong Wang provided valuable suggestions, and helped to complete the experiments. Weifeng Yang helped to complete the experiments. Yushan Deng provided valuable suggestions on the study and was responsible for guiding the work. All authors read and approved the final manuscript.
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Chang, X., Fu, W., Li, M. et al. Research on rolling different types of 3D curved parts by small adjustments in rolling reduction. Int J Adv Manuf Technol 119, 6235–6244 (2022). https://doi.org/10.1007/s00170-021-08519-9
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DOI: https://doi.org/10.1007/s00170-021-08519-9