Abstract
Longitude profiled cladded sheet is obtained by rolling bimetal cladded sheet with variable gauge rolling technology. The longitude profiled rolling process of Cu/Al cladded sheets was studied by finite element method and experiments. The rolling force rises with the increase in reduction, and a sudden change appears at the end of the thickness variation zone. The thickness ratio of copper layer is enlarged after rolling owing to its relatively large deformation resistance and continues to rise with the increase in reduction rate. Lower elongation of copper side leads to the warpage of exit metal to copper side, which further hinders the deformation of copper. The influence of asymmetric rolling parameters indicates that increasing the work roll diameter ratio, speed radio, and friction coefficient on Al side can reduce the warpage when the reduction rate is below a certain value depending on the thickness ratio and other rolling parameters. Comparison of experiments and simulation results showed good agreement and verified the finite element model.
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The research was financially supported by the National Natural Science Foundation of China (Grant Nos. 51674222 and 51974278) and Yanshan University (15LGA003).
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Sun, Jn., Chen, C., Wang, S. et al. Analysis of longitude profiled rolling process of Cu/Al cladded sheet and evaluation of outlet warpage. J. Iron Steel Res. Int. 29, 973–982 (2022). https://doi.org/10.1007/s42243-022-00759-7
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DOI: https://doi.org/10.1007/s42243-022-00759-7