中文摘要：

板材在冲深过程中由于材料本身的各向异性而引起制耳，这种情况使得材料加工中多一道工序，而且造成材料的浪费，增加成品的造价。引入取向分布函数和织构系数，说明正交板材的各向异性仅与织构系数c400、c420、c440。有关，建立正交板材冲深过程中相对径向应变与织构系数的关系式，定量说明制耳与织构间的关系。计算了几种典型织构的相对径向应变，并通过调整各织构组分的比例，达到最小制耳的比例。

英文摘要：

With deep drawing in the orthogonal sheet, there are many ear of material texture. As a result, this makes the material more complex in the process, for example, increase one process in deep drawing, and at the same time, result in material waste and increase the cost of the finished product. Orientation distribution function（ODF） and texture coefficients of material were introduced, indicating the texture of orthogonal sheet relate to texture coeffi- cients Cgo .c40 .c40. A formula between the relative radial strain and texture coefficients was built in the process of or- thogonal sheet deep drawing. The relative radial strain with some typical texture component was calculated, for Cube （ { 100} C001）） Goss（ { 110} 〈 001）） Copper（ { 112 } （111） and so on. Minimization of ear formation was got by mixing the S and Cube texture component by adjusting the ratio of the texture component.