Abstract The thermal contact resistance created in the bite region during cold rolling depends on surface roughness, contact pressure, and the coolant or lubricant between the roll and strip. Therefore, to estimate temperatures of the roll and the strip accurately, the interface resistance in the contact region should be considered when modeling. The purpose of this study is to effectively analyze the thermal behavior of the steel cold rolling process by considering the interface resistance of the roll and strip in the contact region. Since the interface is very thin in comparison with its length, it is modeled as one dimensional heat transfer with friction heat generated along the interface. This model can be used to simulate the behavior of the interface resistance. For the estimation of the thermal contact resistance, different surface situations of cold rolling are considered. Also, a finite element method is adopted to evaluate the deformation and friction powers dissipated in the rolls and strip during rolling process. The roll and strip thermal properties, such as thermal conductivity and specific heat, are considered to be temperature dependent during the calculation of the rolls and strip temperatures.
Tseng et al. (Sun,) studied this question.