| 高功率密度发动机连杆热模锻工艺模拟与优化 |
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| 引用本文： | 高峰,林军.高功率密度发动机连杆热模锻工艺模拟与优化[J].精密成形工程,2015,7(4):66-70. |
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| 作者姓名： | 高峰 林军 |
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| 作者单位： | 1. 北方通用发动机有限公司,山西 大同,037036
2. 国防科技工业精密塑性成形技术研究应用中心，重庆400039; 西南技术工程研究所，重庆400039 |
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| 摘 要： | 目的研究某高功率密度发动机连杆的锻造工艺。方法首先采用传统设计方法设计了连杆模锻工艺,再通过有限元模拟分析优化工艺。结果根据有限元模型,分析了传统设计方法下的毛坯充型效果,直观地再现了终锻成形过程中的坯料外形演变和容易出现成形缺陷,在此基础上,优化了毛坯尺寸,满足了终锻充型要求。结论通过工艺试验进一步验证了模拟结果,获得的锻件没有出现缺肉、折叠等缺陷,微观组织较均匀,能够满足技术要求。
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| 关 键 词： | 连杆 缺陷 数值模拟 工艺优化 |
| 收稿时间： | 2015/4/13 0:00:00 |
| 修稿时间： | 2015/7/10 0:00:00 |
Hammer Forging Process Simulation and Optimization of Connecting Rod of High-Power-Density Engine |
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| GAO Feng and LIN Jun.Hammer Forging Process Simulation and Optimization of Connecting Rod of High-Power-Density Engine[J].Journal of Netshape Forming Engineering,2015,7(4):66-70. |
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| Authors: | GAO Feng and LIN Jun |
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| Affiliation: | Norththern General Dynamic Group Ltd. , Datong 037036, China and 1. National Research and Application Center of Precise Forming, Chongqing 400039, China;2. Southwest Technology and Engineering Research Institute of China, Chongqing 400039, China |
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| Abstract: | The aim of this study was to investigate the hammer forging process of connecting rod of one high-power-den-sity engine. The classical process design method was employed to design the hammer forging process, and the finite element method was used to analyze the process. By using numerical simulation, the filled effect was analyzed, the geometrical evolution of preform and defect were shown in numerical simulation results, and the geometry of preform and hammer process were optimized. Experimental work verified the accuracy of numerical simulation results. The obtained forging of connecting rod has homogeneous microstructure without any defects, which can satisfy all the technical requirements. |
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| Keywords: | connecting rod defect numerical simulation process optimization |
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