NUMERICAL MODELING OF THE MICROSTRUCTURE DURING 50X20 MM FLAT BARS ROLLING PROCESS

摘要

In this work theoretical analysis of the microstructure change in the material during normalizing rolling of the 50x20 mm flat bars was presented. Theoretical analysis was made with computer program Forge 2007, based on the finite-element method. An analysis was made for two cases of accelerated cooling during rolling process. Based on the numerical results of 50x20 flat bars rolling process the average recrystallized austenite diameter and basic energy and force parameters. Proposed modification of the 50x20 mm flat bars rolling technology involving accelerated cooling, results in the reduction of average austenite diameter, which could cause improving strength of the final product.