Deformation analysis of surface defect on hot rolling by 3-DFEM simulation

Abstract

The major objective of this research is to develop a 3-D FEM simulationtechnique in order to analyze the deformation behavior of surfacedefects on hot rolling. The developed technique will be applied toquantify the relationship between rolling condition and the processparameters, and the rolling pattern will be tested to verify and validatethe simulation technique. This technique will allow us to quantify theshrinkage of slab width at the head and tail, width spread after thehorizontal rolling, dog-bone shape, position change of the slab corneras the slab is being rolled, strain distributions. And the shape changeof surface defects in hot rolling was investigated using the 3-D rollingsimulation technique. The proposed prediction method of surfacedefect can be utilized to make defect free products in rolling.