Qualitative study on texture evolution in rolled sheet metals using homogenization methods

Abstract

The estimation of the texture in a sheet metal induced by rolling is an important issue for the accurate description of forming operations as, e.g., deep drawing. This work deals with comparing the prediction of the development of rolling textures in aluminum sheets based on different homogenization schemes. The crystallite orientation distribution function (codf) is evaluated by a class of homogenization methods based on a so‐called comparison material and is compared to the widely used Taylor‐type prediction. It is demonstrated that using the model based on the comparison material, the particular choice of the latter strongly influences the intensity distribution of the codf and also the location of the obtained β‐fiber. The proposed homogenization method gives much better results for the reproduction of the codf than the Taylor‐type model. When qualitatively comparing the computational results to experimental data, the location of the maxima in the codf generated by the rolling process are satisfactorily reproduced.