| 半轴套管热挤压成形工艺数值模拟 |
| |
| 引用本文： | 陈文琳,朱玉生,聂会星,叶永旭,李伟,王世东.半轴套管热挤压成形工艺数值模拟[J].农业机械学报,2007,38(11):153-156. |
| |
| 作者姓名： | 陈文琳 朱玉生 聂会星 叶永旭 李伟 王世东 |
| |
| 作者单位： | 1. 合肥工业大学材料科学与工程学院,230009,合肥市
2. 安徽省合肥锻件厂,230031,合肥市 |
| |
| 摘 要： | 通过对半轴套管的工艺分析,基于体积不变原则,采用逆向法计算零件毛坯,确定了热挤压成形工艺方案;结合刚粘塑性有限元法基本原理,运用有限元软件对半轴套管的反挤压过程进行3-D热力耦合模拟。影响半轴套管热挤压成形的主要工艺参数有挤压温度、挤压速度、模具预热温度等。在其他条件相同情况下,分别设置不同的挤压温度、挤压速度、模具预热温度,通过对不同参数模拟结果的分析比较,得出工艺参数对半轴套管成形的影响状况,揭示热挤压成形过程中的金属流动规律。优化的成形参数,提高了半轴套管的成形性能和经济性能。
|
| 关 键 词： | 半轴套管 热挤压 成形 数值模拟 |
| 收稿时间： | 2006-08-07 |
| 修稿时间： | 2006年8月7日 |
Numerical Simulation on Hot Extrusion Process of Half Shaft Bushing |
| |
| Chen Wenlin,Zhu Yusheng,Nie Huixing,Ye Yongxu,Li Wei,Wang Shidong.Numerical Simulation on Hot Extrusion Process of Half Shaft Bushing[J].Transactions of the Chinese Society of Agricultural Machinery,2007,38(11):153-156. |
| |
| Authors: | Chen Wenlin Zhu Yusheng Nie Huixing Ye Yongxu Li Wei Wang Shidong |
| |
| Institution: | 1.Hefei University of Technology 2.Hefei Automobile Forging Factory |
| |
| Abstract: | According to the rule of volume constancy, forming process of half shaft bushing was analyzed, the roughcast was calculated conversely, and the hot extrusion process was established. By combining with the rigid-viscoplastic finite element method (FEM) theory and using FEM software, a 3-D thermodynamic coupling simulation was performed for the reverse extrusion process of half shaft bushing. The major processing parameters, which influence the hot extrusion of half shaft bushing, include extruding temperature, extruding velocity, warming-up temperature of dies and so on. The simulation results corresponding to different extruding temperatures, extruding velocities and warming-up temperatures of dies, were analyzed and compared with each other. Finally, the influence of processing parameters on the half shaft bushing was obtained, and the rules of metal flowing during the reverse extrusion process of half bushing were disclosed. The producing application of optimized forming parameters can enhance the half shaft bushing's forming property and economy performance. |
| |
| Keywords: | Half shaft bushing Hot extrusion Forming Numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《农业机械学报》浏览原始摘要信息 |
| 点击此处可从《农业机械学报》下载免费的PDF全文 |
|
