Abstract
In rolling, deformation is applied by a series of passes, which arenecessarily separated by holding periods between passes. The formation of thetemperature profile therefore has a complex history. Accurate information onthe time variation of temperature is essential for predicting microstructuraldevelopment during hot working conditions and for the design of anacceptable rolling pass schedule. In the present paper, the finite-elementmethod is employed to compute temperature changes under both laboratoryand industrial breakdown rolling conditions. The calculated results are thencompared with temperature records extracted from the literature. Thedifference between laboratory and industrial rolling is discussed. By usinginverse analysis methods, appropriate heat transfer coefficients can beascertained.
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