| 空心铝型材"丁字位"表面印痕缺陷的模具结构优化 |
| |
| 引用本文： | 周漪,王孟君,李继林,潘学著,王迎新,梁松林.空心铝型材"丁字位"表面印痕缺陷的模具结构优化[J].矿冶工程,2019,39(2):111-114. |
| |
| 作者姓名： | 周漪 王孟君 李继林 潘学著 王迎新 梁松林 |
| |
| 作者单位： | 中南大学 材料科学与工程学院,湖南 长沙,410083;广东省材料与加工研究所,广东 广州,510650;广亚铝业有限公司,广东 佛山,528237 |
| |
| 基金项目： | 广东省省级科技计划项目(2016B090931004) |
| |
| 摘 要： | 对6063空心铝型材挤压过程进行数值模拟, 获得型材“丁字位”区域同方向的金属流速和位移, 分析型材产生印痕的原因和表面内凹量, 并在合理位置添加阻流块, 优化模具结构。模拟和验证实验均表明, 阻流块可以有效控制流速, 使“丁字位”上的流速更加均匀, 型材“丁字位”表面内凹量减小, 产品达到生产要求。
|
| 关 键 词： | 空心铝型材 丁字位 印痕 表面缺陷 挤压 数值模拟 |
| 收稿时间： | 2018-09-25 |
Optimization of Die Structure for Surface Indentation of T-cross Section of Aluminum Alloy with Hollow Profile |
| |
| ZHOU Yi,WANG Meng-jun,LI Ji-lin,PAN Xue-zhu,WANG Ying-xin,LIANG Song-lin.Optimization of Die Structure for Surface Indentation of T-cross Section of Aluminum Alloy with Hollow Profile[J].Mining and Metallurgical Engineering,2019,39(2):111-114. |
| |
| Authors: | ZHOU Yi WANG Meng-jun LI Ji-lin PAN Xue-zhu WANG Ying-xin LIANG Song-lin |
| |
| Affiliation: | 1.School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China;
2.Guangdong Institute of Materials and Processing, Guangzhou 510650, Guangdong, China;
3.Guangya Aluminum Co Ltd, Foshan 528237, Guangdong, China |
| |
| Abstract: | The numerical simulation of extrusion process for 6063 hollow aluminum profile was performed, and the metal flow velocity and displacement toward the same direction of the “T-cross section” of the aluminum profile were obtained. Then, based on the analysis of the causes for indentation and number of dimples on the surface, a baffle block was installed at the appropriate position to optimize the die structure. Both simulation and verification test results showed that the baffle-block could effectively control the metal flow rate, leading to the uniform flow velocity for the T-cross section. Besides, the number of dimples on the surface of T-cross section was reduced. It was concluded that with this method, the quality of profile can meet the requirements for the product. |
| |
| Keywords: | aluminum hollow profile T-cross section indentation surface defect extrusion numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《矿冶工程》浏览原始摘要信息 |
|
点击此处可从《矿冶工程》下载全文 |
|
