基于Dynaform的印涂铝盖冲压拉深摩擦条件的数字化设计技术

发布时间：2018-10-05 17:58

【摘要】：以非线性有限元软件Dynaform为平台,保持凸模与坯料间的摩擦系数不变,分别将凹模与坯料间的摩擦系数取值为0.01,0.02,0.04,0.08和0.1,研究凹模与坯料间的摩擦系数对1716印涂铝盖冲压拉深过程中壁厚分布的影响;再将凹模与坯料间的摩擦系数保持不变,分别将凸模与坯料间的摩擦系数取值为0.1,0.125,0.15,0.17和0.18,研究凸模与坯料间的摩擦系数对1716印涂铝盖冲压拉深过程中壁厚分布的影响。结果表明:1716印涂铝盖末次拉深的相对合理摩擦条件是凸模与坯料间静摩擦系数取0.17,凹模与坯料间动摩擦系数取0.020。同时,生产试验表明,采用静摩擦系数为0.17、动摩擦系数为0.020的摩擦条件可以生产出质量合格的产品。
[Abstract]:Based on the nonlinear finite element software Dynaform, the friction coefficient between the punch and the blank is kept unchanged. The friction coefficient between the die and the blank is 0.01 / 0. 02 / 0. 04 / 0. 08 and 0. 1 respectively. The influence of the friction coefficient between the die and the blank on the distribution of the wall thickness in the drawing process of the 1716 coated aluminum cover is studied, and the friction coefficient between the die and the blank is kept unchanged. The friction coefficient between the punch and the blank is 0.1250.150.17 and 0.18, respectively. The influence of the friction coefficient between the punch and the blank on the distribution of the wall thickness during the stamping and drawing of 1716 coated aluminum cover is studied. The results show that the relative reasonable friction conditions for the final drawing of the overcast aluminum cover are as follows: the static friction coefficient between the punch and the blank is 0.17, and the dynamic friction coefficient between the die and the blank is 0.020. At the same time, the production test shows that the product of qualified quality can be produced under the friction condition of static friction coefficient of 0.17 and dynamic friction coefficient of 0.020.
【作者单位】：四川大学制造科学与工程学院;四川职业技术学院机械工程系;
【基金】：四川省教育厅自然科学重点科研项目(15ZA0347)
【分类号】：TG386.32

【相似文献】