Structure parameter selection in rolls during hot rolling

Roll that bears large rolling load during the hot rolling process is one of the important components of rolling mill. This paper describes an investigation into the stress level of roll using ANSYS software to model rolling process. Two FEM model involving in three-dimensional and nonlinear contact have been established successfully to evaluate the working stress of the roll barrel and roll end. The influence factors that include roll body diameter, roll neck dimension and root fillet of keyway in the roll end are also discussed to reduce roll stress. Some structural parameters of the roll have been suggested to reduce roll stress and ensure production safety. The study results provide new ideas for designing roll.