| 有限元模拟在后轴支架锻造设计中的应用 |
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| 引用本文： | 程联军,赵国群,杨建华,赵新海.有限元模拟在后轴支架锻造设计中的应用[J].塑性工程学报,2008,15(1):14-17,40. |
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| 作者姓名： | 程联军 赵国群 杨建华 赵新海 |
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| 作者单位： | 1. 山东大学模具工程技术研究中心,济南,250061
2. 山东光岳转向节总厂,聊城,252000 |
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| 基金项目： | 山东省科技攻关项目
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山东省自然科学基金 |
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| 摘 要： | 针对汽车后轴支架,进行锻造过程三维有限元模拟和工艺、模具设计。采用刚粘塑性有限元模拟技术,得到锻件内部应力场、应变场等参数,分析了这些参数对锻件塑性变形的影响。在此基础上,对此类锻件传统的锻造工艺进行了改进,将预锻工序由开式模锻改进为封闭飞边闭式模锻。同时,模具设计重点从预成形设计考虑,给出了合理的制坯模具设计。在40MN热模锻压力机上进行了试验,试验表明,模拟结果和实际成形过程吻合良好。
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| 关 键 词： | 有限元模拟 闭式模锻 预成形设计 |
| 文章编号： | 1007-2012（2008）01-0014-04 |
| 收稿时间： | 2007-07-03 |
| 修稿时间： | 2007年7月3日 |
FEM simulation of forging process for the design of a rear axle bracket |
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| CHENG Lian-jun,ZHAO Guo-qun,YANG Jian-hua,ZHAO Xin-hai.FEM simulation of forging process for the design of a rear axle bracket[J].Journal of Plasticity Engineering,2008,15(1):14-17,40. |
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| Authors: | CHENG Lian-jun ZHAO Guo-qun YANG Jian-hua ZHAO Xin-hai |
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| Abstract: | The 3D finite element method(FEM)simulation of forging process for a rear axle bracket for automobile is presented,and the forging process and the molds are designed.Using the rigid visco-plastic FEM simulation technology,the distributions of stress and strain are obtained,and the influences of parameters to plastic deformation of the workpiece are analyzed.Based on the analyses,traditional open forging process is changed,and closed-die forging with closed-flash process for the preforging is proposed.Meanwhile,the main attention is focused on preform design,and the proper preforming mold is designed.Through the results of the experiment performed on the 40MN hot die-forging press,it is founded that the simulation results fit the actual forming process well. |
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| Keywords: | FEM simulation closed-die forging preform |
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