Roll pass design software9/6/2023 ![]() The dependences of maximum local plastic deformation on geometrical parameters of the calibres have been obtained and analysed during this study. This fact can leads to extension of surface defects. The computer simulation of the process shows that the local plastic deformations which appear in the material are extremely large. ![]() The process considered is a rolling of round bar in roughing mill group which consist of four passes. The subject of the paper is a study of the material behaviour during hot rolling.
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