Modelling material transfer in metal rolling using plasticine
نویسنده
چکیده
Plasticine strips are rolled between cylindrical rollers to model the phenomenon of material transfer in metal rolling. Strips of thin plastic film ‘clingfilm’) on the plasticine strip are used to model the oxide layer that covers the surface of aluminium. The effect of gaps opening up between he clingfilm strips is investigated. It is found that the percentage area of the exposed strip giving rise to transfer of material increases with the gap idth. The evidence strongly suggests that plasticine particles transferred to the rolls are able to pick off plasticine from the strip on successive asses. Larger plasticine particles are more likely to show this behaviour and consequently grow in size. The results confirm the usefulness of lasticine as a suitable material to investigate transfer layer formation in metal rolling, and help inform development of experimental procedures o study the evolution of real metal transfer layers. 2007 Elsevier B.V. All rights reserved.
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