Development of Residual Stresses and Texture in Drawn Copper Tubes

Abstract

The residual stress state and the texture in Cu-tubes, drawn without a plug under controlled laboratory conditions, are presented. Neutron stress determination confirms a stress gradient from the outer to the inner surface of the tube walls. High energy X-rays were used to analyze the texture gradient around the perimeter of the tubes as well as over the wall thickness. Anisotropic flow during tube processing results in texture variations described by ODF-analysis.