| 马鞍面件多道次多点模具成形数值模拟 |
| |
| 引用本文： | 刘伟,李海平,李明哲. 马鞍面件多道次多点模具成形数值模拟[J]. 机械设计与制造, 2009, 0(2) |
| |
| 作者姓名： | 刘伟 李海平 李明哲 |
| |
| 作者单位： | 1. 河南工业大学,机电工程学院,郑州450007
2. 吉林大学,辊锻工艺研究所,长春,130022 |
| |
| 基金项目： | 国家自然科学基会资助项目 |
| |
| 摘 要： | 通过对马鞍面件多道次多点模具成形的有限元数值模拟,阐述了多道次多点模具成形数值模拟的关键技术,并与单工步多点模具成形进行比较,分析了马鞍面件的成形过程,研究了不同曲率半径步长对成形结果的影响.结果表明:多道次多点模具成形与单工步多点模具成形相比改善了板材的受力状况,达到了消除变形集中的目的;多道次多点模具成形时,随着曲率半径步长的减小,板料厚度分布越来越均匀,不易形成集中失稳.
|
| 关 键 词： | 多道次多点模具成形 数值模拟 起皱 单工步 曲率半径步长 |
Numerical simulation on the process of saddle surface multi-step multi-point die forming |
| |
| LIU Wei,LI Hai-ping,LI Ming-zhe. Numerical simulation on the process of saddle surface multi-step multi-point die forming[J]. Machinery Design & Manufacture, 2009, 0(2) |
| |
| Authors: | LIU Wei LI Hai-ping LI Ming-zhe |
| |
| Affiliation: | 1School of Electromechanical Engineering;He'nan University of Technology;Zhengzhou 450007;China;2Roll Forging Institute;Jilin University;Changchun 130022;China |
| |
| Abstract: | By the finite element numerical simulation of multi-step multi-point die forming for saddle surface,its key technology was represented,and by comparing with single-step forming,the forming process was analyzed.In addition,it was studied that influence of different curvature radius step length upon forming result.The simulation results show that the multi-step forming can improve the stress of sheet metal and avoid stress concentration;in multi-step forming,smaller the curvature radius step length is,more un... |
| |
| Keywords: | Multi-step multi-point die forming Numerical simulation Wrinkling Single-step Curvature radius step length |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
