• CN：11-2187/TH
• ISSN：0577-6686

• •

### 轴对称拉深成形中法兰变形区的解析方法

1. 1. 先进锻压成形技术与科学教育部重点实验室(燕山大学) 秦皇岛 066004；
2. 燕山大学机械工程学院 秦皇岛 066004
• 出版日期:2017-04-15 发布日期:2017-04-15
• 作者简介:

贾向东，男，1987年出生，博士研究生。主要研究方向为板材成形新工艺及其理论。

E-mail：jiaxd.good@163.com

赵长财(通信作者)，男，1964年出生，博士，教授，博士研究生导师。主要研究方向为现代液压机设计理论、管板材成形新工艺。

E-mail：zhao1964@ysu.edu.cn

• 基金资助:
* 国家自然科学基金(51305385)和河北省高等学校科学技术研究青年基金(QN20131080)资助项目; 20160328收到初稿，20160918收到修 改稿;

### Analytic Methods of Flange Deformation Region in Axisymmetrical Drawing Process

JIA Xiangdong1,2, ZHAO Changcai1,2, HE Liuyang1,2, LI Jianchao1,2, CAO Miaoyan2, MO Chen1,2

1. 1. Key Laboratory of Advanced Forging & Stamping Technology and Science(Yanshan University)，Ministry of Education of China， Qinhuangdao 066004;
2. College of Mechanical Engineering， Yanshan University， Qinhuangdao 066004
• Online:2017-04-15 Published:2017-04-15

Abstract:

Stress and strain analysis of flange deformation region are the basis of studying wrinkling, instability and forming limit of sheet metal in axisymmetrical drawing process. Two different kinds of analytical methods, the slab method and the method based on generalized Hooke’s law and deformation compatibility equations, are established for the stress and strain analysis of the flange deformation. Comparisons are made between experimental and numerical simulation results and calculated results for two proposed analytical methods respectively. The results show that, in slab method, the calculated radial strain are different from experimental and simulation results greatly for the thickness variation of flange is ignored; the calculated tangential stress has large deviation, while the calculated radial stress has a small deviation as compared to simulation with the average hardening model expressed by tangential strain. Thus the calculated results through slab method can meet engineering requirement for estimating drawing deformation force. In the method of generalized Hooke's law, the defects of slab method solution can be avoided, the calculated values of stress and strain are in good agreement with experimental and simulation results, and the relative deviation is less than 5%. The method based on generalized Hooke’s law is a relatively accurate theory analysis method for axisymmetrical drawing process.