Abstract
In the strip-rolling process, inadequate work roll cooling often produces high roll temperature and temperature gradients. High thermal stresses resulting from high temperature gradients are responsible for roll surface cracking and spalling. An understanding of the thermal induced stresses is essential toward evaluating roll wear and designing a proper roll-cooling system for increasing roll life and securing better product quality. In this paper, a quasi-static thermal stress solution presented in integral form is developed for an arbitrary temperature distribution in the work roll. The importance of mechanical and thermal stresses in the work roll under cold rolling and hot rolling conditions is investigated.
Published Version
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