Lateral Spread in Industrial Hot Rolling Processes

The chapter delves into the critical role of lateral spread in industrial hot rolling processes, highlighting its impact on workpiece geometry, caliber filling, and reduction ratio. Traditionally calculated using empirical or analytical equations, lateral spread is now predicted using the finite element method (FEM), offering a more precise and efficient approach. The study evaluates the influence of various factors such as alloy types, temperature distributions, billet sizes, and shapes on lateral spread. Notably, it demonstrates how FEM can reduce time and material costs associated with industrial trials and laboratory tests. The chapter also explores the effects of anisotropic flow behaviors and interstand tension in continuous rolling on lateral spread, providing practical insights into optimizing rolling processes. By comparing the results from laboratory tests and FEM simulations, the authors underscore the advantages of using FEM for predicting and controlling lateral spread, making this chapter a valuable resource for professionals seeking to enhance the efficiency and accuracy of hot rolling processes.