| 阻流环及模具结构对大扩展比连续挤压成形的影响 |
| |
| 引用本文： | 运新兵,姚明亮,赵颖,杨俊英,李冰,宋宝韫.阻流环及模具结构对大扩展比连续挤压成形的影响[J].塑性工程学报,2011,18(4). |
| |
| 作者姓名： | 运新兵 姚明亮 赵颖 杨俊英 李冰 宋宝韫 |
| |
| 作者单位： | 大连交通大学连续挤压教育部工程研究中心,大连,116028 |
| |
| 基金项目： | 国家自然科学基金资助项目(50635020); 辽宁省百千万人才工程资助项目(2009921085) |
| |
| 摘 要： | 大扩展比连续挤压是制造铜带的一种新技术,阻流环及模具结构是影响扩展成形的重要因素。根据大扩展比连续挤压扩展成形特点,建立基于DEFORM-3D刚塑性有限元模型,通过对铜带连续挤压过程的数值模拟,分析不同阻流环及模具结构下的金属流动规律、流速均方差。实验与数值模拟结果均表明,使用有促流角的圆鼓形阻流环及变定径带模具时,金属流动速度差最小;流速均方差为0.58时,变形最均匀。为连续挤压成形模具优化设计提供了重要的依据。
|
| 关 键 词： | 铜带 连续挤压扩展成形 阻流环 模具 数值模拟 |
Effect of the preventing mould and die structure on continuous extrusion deforming under large expansion ratio |
| |
| YUN Xin-bing,YAO Ming-liang,ZHAO Ying,YANG Jun-ying,LI Bing,SONG Bao-yun.Effect of the preventing mould and die structure on continuous extrusion deforming under large expansion ratio[J].Journal of Plasticity Engineering,2011,18(4). |
| |
| Authors: | YUN Xin-bing YAO Ming-liang ZHAO Ying YANG Jun-ying LI Bing SONG Bao-yun |
| |
| Affiliation: | YUN Xin-bing YAO Ming-liang ZHAO Ying YANG Jun-ying LI Bing SONG Bao-yun(Engineering Research Center of Continuous Extrusion,Ministry of Education,Dalian Jiaotong University,Dalian 116028 China) |
| |
| Abstract: | Continuous extrusion under large expansion ratio is a new technology for manufacturing copper strip.Preventing mould and die structure are important effecting factor of deformation.Based on the characteristic of the forming process,the model of rigid-plastic FEM on DEFORM-3D was established and the numerical simulation of continuous extrusion forming process of the copper strip was carried out.The metal flow regularity and the mean-square deviation of velocity with different structures of preventing mould a... |
| |
| Keywords: | copper strip continuous extrusion deforming preventing mould die numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
