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Regular version of the site

Article

Numerical simulation laboratory hot rolling process of a round bars in flat rolls

Journal of Chemical Technology and Metallurgy. 2018. Vol. 53. No. 2. P. 380-385.
Dmitrii Demin, Ivan Zakhariev, Taisia Labutina, Levikina A.

In this study the process of a hot laboratory rolling of a round bar on the flat rolls was studied by laboratory

experiments and numerical modelling in order to evaluate the effect of boundary conditions and simulation techniques

on the model predictions. The computer simulations of rolling process were performed by two different techniques

based on Finite Element Method (FEM). The first technique solves three dimensional problems. The second one is

based on the sequential solution of a series of generalized plane problems. Each technique was used for solving of

isothermal forming task and non-isothermal one. The results were compared with laboratory rolling performed with

different reductions and at different temperatures. It was found that the difference of initial temperature is incon-

sequential to the prediction of strain and strain-rate distributions. This observation was confirmed experimentally.