| 粉末材料压制过程的DEM分析 |
| |
| 引用本文： | 温彤.粉末材料压制过程的DEM分析[J].重庆大学学报(自然科学版),2007,30(7):1-4. |
| |
| 作者姓名： | 温彤 |
| |
| 作者单位： | [1]重庆大学机械工程学院,重庆400030 [2]Department of Engineering Science, University of Oxford, Oxford OX1 3PJ |
| |
| 摘 要： | 应用离散单元法(DEM)研究了粉末材料在开口容器中受到刚性凸模压制时的流动特点,获得了压制过程中颗粒的运动轨迹、运动速度以及粉末密度分布等重要信息;总结了几种典型的粉末流动模式,并在相关实验中得到了印证,说明了应用DEM分析具有强剪切行为的粉末流动是可行的,结论可供粉末冶金工艺和模具设计人员参考.
|
| 关 键 词： | 粉末冶金 离散单元法 压制 成形 |
| 文章编号： | 1000-582X（2007）07-0001-04 |
| 修稿时间： | 2007-03-10 |
DEM Study of Flow Pattern of Powder Compacted |
| |
| COCKS Alan C F,WEN Tong,COCKS Alan C F.DEM Study of Flow Pattern of Powder Compacted[J].Journal of Chongqing University(Natural Science Edition),2007,30(7):1-4. |
| |
| Authors: | COCKS Alan C F WEN Tong COCKS Alan C F |
| |
| Institution: | 1. College of Mechanical Engineering, Chongqing University, Chongqing 400030, China; 2. Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, UK |
| |
| Abstract: | Discrete Element Method(DEM) is used to study the flow pattern of loose powder which is indented by a rigid punch in an open die.Information such as trajectories or velocity of the particles movement and density distribution of the granular material during compaction is obtained.Typical powder flow characters in given areas can be observed in the theoretical simulation and experiment.It demonstrates that DEM can capture the major features of the powder flow behavior under low-pressure compaction when there is intense shear,and the conclusion of the flow behavior of compacted powder is useful to the industrial designing. |
| |
| Keywords: | powder metallurgy discrete element method compaction deformation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《重庆大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《重庆大学学报(自然科学版)》下载免费的PDF全文 |
