Abstract
Large cylindrical shell rolling is an advanced plastic-forming technique that has unequal speed and radius of both its upper and lower rolls. A theoretical model for a large cylindrical shell rolling that is based on the slab method is proposed, in which the non-uniform normal and shear stresses that act on the vertical sides are considered. A mixed friction model of combined Coulomb and sticking friction is used to present interface friction, to improve the accuracy of the proposed model. The rolling pressure, rolling force, and torque as well as friction stress can be rapidly and easily calculated through the proposed model at different rolling conditions. The predicted rolling force is consistent with the experimental result. The research results provide valuable guidelines for both the design and optimization of rolling product, process, and equipment.
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Recommended by Associate Editor Dae-Cheol Ko
Liu Hongmin received his Doctor Degree in Metallurgical Machinery in Northeast Heavy Machinery Institute, China, on 1988. He is now a professor at Yanshan University, China. His research interests include rolling theory and profile control.
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Chen, S., Liu, H., Peng, Y. et al. Slab analysis of large cylindrical shell rolling considering mixed friction. J Mech Sci Technol 28, 4753–4760 (2014). https://doi.org/10.1007/s12206-014-1042-1
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DOI: https://doi.org/10.1007/s12206-014-1042-1