Abstract
To effectively improve the interfacial bonding strength of a Cu/Al-layered composite strip prepared by a short process forming method of solid‒liquid cast-rolling, a novel process of vibration cast-rolling composite was proposed in this study. To verify the effectiveness of the novel technology in improving the bonding strength and deeply analyse the mechanism of this effect, pilot-scale vibration cast-rolling equipment was built. A thermal mechanical coupling numerical simulation model with the same size was established. Experiments and simulations showed that this method can effectively control the bonding strength by affecting the thickness of the interface layer. The control mechanism uses reciprocating cross shear behaviour caused by the roll vibration to cause ‘dynamic impact’ and ‘repeated rolling’ on the interface layer in the process of plastic deformation. This results in the crushing and thinning of the brittle phase at the interface to improve the interface bonding strength.
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This work was supported by the National Natural Science Foundation of China (51975510), National Science Foundation for Young Scientists of China (52105336).
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Minghan Sun and Lingxiao Li designed the study. Minghan Sun, Lingxiao Li and Qiuyue Du performed most experiments in this work and collected important background information. M.H. Sun completed most numerical simulation calculations. Xiaotao Liu and Chao Zhao provided assistance for data acquisition and data analysis. Lingxiao Li and Qiuyue Du drafted the manuscript. Minghan Sun and Lingxiao Li funded the research. All the authors reviewed the manuscript.
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Li, L., Du, Q., Sun, M. et al. Study on the mechanism of strengthening the bonding strength of Cu/Al composite strip by cross shear behaviour from vibration cast-rolling process. Int J Adv Manuf Technol 121, 7413–7426 (2022). https://doi.org/10.1007/s00170-022-09851-4
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DOI: https://doi.org/10.1007/s00170-022-09851-4