Prediction of Surface Roughness on Rolled Sheet by Texture Roll

AbstractThe surface roughness, which is one of the important characteristics of a strip on texture rolling was predicted. The texture rolling is to transfer the roughness on the strip by rolling with a roll that is applied to the textured surface. For the prediction of surface roughness, up to now the roughness prediction method has mainly been studied by experimental approaches. Aims of this paper is establishment of a prediction method for the surface roughness by means of numerical simulation. For prediction of the profile of the printed texture on a strip by rolling, it is important to understand the microscopic metal flow on the surface during the rolling. However, it is difficult to clarify a 3D metal flow on the surface. Therefore, as a first step, an experimental study was carried out on a patterned 2D textured surface, in order to compare with the numerical simulation. These experimental results and predicted results for the transcribed profiles are in good agreement with each other. Moreover, these printed textures by rolling process are similar to those by simple compression process. From these results, the 2D printed texture is mainly caused by simple compression mode. Moreover, there is a minor effect caused by the rolling process, and the height of the transcribed profile at the delivery side is higher than at the entry side for the 2D printed texture