THE INFLUENCE OF INGOT GEOMETRY ON TEMPERATURE DISTRIBUTION IN HCSS316 DURING HOT ROLLING

Abstract

The effects of material geometry on rolling parameters such as yield stress, rolling load and torque have been studied. In this work, geometrical variation is intruded into the Reverse Sandwich Rolling Model (RSM) for high carbon stainless steel type 316 (HCSS316). The modification affords evaluation of the possible effect of geometry of the in-going strip of HCSS316 on temperature distribution in the material during hot rolling. Simulation of the model was carried out using FORTRAN 77. The computer code was validated with hot rolling experimental data from two high-reversing hot rolling mills with different roll diameter. Results of the simulation revealed a symmetrical temperature distribution from the rolling surfaces, to the mid-thickness of the specimen where in peaked. Thos pattern was consistent for specimens with different geometry. The results showed agreement with experimental inferences.