Table of Contents
Textures and Microstructures
Volume 26–27

Effect of Crystal Rotation on Earing in Cup Drawing of Highly Textured Materials

Department of Manufacturing Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

Received 10 September 1995

Copyright © 1996 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In this paper, a numerical model taking into account of crystal rotation is presented to predict earing in cup drawing. The model is based on the Continuum Mechanics of Textured Polycrystals and the assumption of plane strain. Ear profiles have been predicted for some common crystallographic orientations in face-centered cubic metals and highly textured sheets. It was shown that the major trends of the predicted profiles for both the single crystals and highly textured sheets were consistent with experimental results. The effect of crystal rotation on earing was shown to be insignificant for the predicted ear profiles. However, a more sophisticated model with the consideration of the changes of both texture and stress states should be used for more accurate predictions.