Anisotropy in Cold Deep Drawing of CP-Ti Sheet

Abstract

Anisotropy of CP-Ti sheet in cold deep drawing was investigated by means of experiments. The as-received blank showed remarkable anisotropy due to the existence of the spilt basal texture. Deformation intensified the anisotropy in the distributions of wall thickness and ears, and mechanical properties after drawing. The micro-mechanism causing anisotropy of CP-Ti was analyzed. Then, methods for the improvements of anisotropy were brought out as profile optimization of the initial blank and heat treatment on the finished part at 650 °C for 1 hour.