| 选择性激光烧结制件冷等静压形变模拟与试验 |
| |
| 引用本文： | 史玉升,任丽花,魏青松,刘锦辉.选择性激光烧结制件冷等静压形变模拟与试验[J].华中科技大学学报(自然科学版),2007,35(12):91-94. |
| |
| 作者姓名： | 史玉升 任丽花 魏青松 刘锦辉 |
| |
| 作者单位： | 华中科技大学,材料成形及模具技术国家重点实验室,湖北,武汉,430074 |
| |
| 摘 要： | 将选择性激光烧结(selective laser sintering,SLS)和冷等静压(cold isostatic pressing,CIP)结合,快速制造复杂零件.采用修正的Cam-Clay模型,用ABAQUS软件实现了长方体和齿轮的SLS制件CIP过程的数值模拟,得到相对密度与压力的关系,预测了SLS制件CIP后的结构和尺寸.与试验对比表明:长方体Z向的收缩率误差比较大(34.9%),齿轮齿根处尺寸误差比较大(-47.97%).为复杂制件结构设计和压力选取提供了依据,并为SLS/CIP成形提供了有效的指导.
|
| 关 键 词： | 选择性激光烧结 冷等静压 数值模拟 Cam-Clay模型 |
| 文章编号： | 1671-4512(2007)12-0091-04 |
| 修稿时间： | 2006年10月10 |
Simulation of cold isostatic pressing of part by selective laser sintering |
| |
| Shi Yusheng,Ren Lihua,Wei Qingsong,Liu Jinhui.Simulation of cold isostatic pressing of part by selective laser sintering[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2007,35(12):91-94. |
| |
| Authors: | Shi Yusheng Ren Lihua Wei Qingsong Liu Jinhui |
| |
| Abstract: | Combined selective laser sintering with cold isostatic pressing to achieve complicated parts.Simulation of CIP of brick and gear after SLS achieved the relationship between relative densities with pressure and predicted the dimensions using modified Cam-Clay model and ABAQUS software.Comparing with experimental results,it was found that brick had greater error rate in Z direction(34.9%);gear in hole(-47.97%).Simulations provide the basis for the structure design and choose of pressure and effective guidance for SLS/CIP. |
| |
| Keywords: | selective laser sintering(SLS) cold isostatic pressing(CIP) simulation Cam-Clay model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
