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Micro Crack of Aluminum Sheet During Cold Rolling

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DOI: 10.4236/wjm.2011.14022    6,683 Downloads   15,341 Views   Citations

ABSTRACT

The micro crack of aluminum sheet during cold rolling lubricated with emulsions is investigated. Experi-ments show that micro cracks occur after cold rolling process and this is attributed to various parameters, for instance, the thin oxide film formed at the sheet surface. The micro crack spacing thus becomes an important parameter which deserves more concerns. The aspect ratio of these micro cracks is then analyzed theoreti-cally, which takes into consideration of the oxide fracture process. The good agreement between the obser-vations and the theoretical predictions validates the analysis. The approach can shed some new lights on the mechanical process of aluminium sheet during cold rolling.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

C. Zhang, S. Liu and C. Zhang, "Micro Crack of Aluminum Sheet During Cold Rolling," World Journal of Mechanics, Vol. 1 No. 4, 2011, pp. 169-175. doi: 10.4236/wjm.2011.14022.

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