刘雅辉,刘淑梅,何文涛.发动机连杆热锻模具结构分析及优化设计[J].精密成形工程,2014,6(4):1-5,62.
LIU Ya-hui,LIU Shu-mei,HE Wen-tao.Die Structural Analysis and Design Optimization of Engine Conrods[J].Journal of Netshape Forming Engineering,2014,6(4):1-5,62. |
| 发动机连杆热锻模具结构分析及优化设计 |
| Die Structural Analysis and Design Optimization of Engine Conrods |
| 投稿时间：2014-05-07 修订日期：2014-07-01 |
| DOI：10.3969/j.issn.1674-6457.2014.04.001 |
| 中文关键词: 连杆 热锻成形 正交试验 数值模拟 模具优化设计 |
| 英文关键词: conrods hot forging orthogonal test numerical simulation die design optimization |
| 基金项目:国家自然科学基金资助项目(51301105) ;上海工程技术大学科研创新项目(13KY0516) |
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| 中文摘要: |
| 目的 以 1 KD 发动机连杆的热锻模具为研究对象,对其进行结构分析和优化设计。 方法 采用 DEFORM3 D 模拟 1 KD 连杆热锻成形过程,重点关注与模膛布局相关的中心飞边仓深度、模膛的中心距和旋转角度等 3 个参数,对成形载荷、锻件折叠和模具磨损的影响。 结果 采用两次预锻加终锻的生产工艺,可以达到分配坯料质量、降低载荷的目的;模膛中心距和模膛旋转角是影响成形载荷的主要因素,而中心飞边仓深度对模具磨损有显著的影响。 结论 最终获得了 3 个参数的优化组合:模膛中心距为 32 mm,模膛旋转角为 12 o ,中心飞边仓深度为 10 mm,对模具设计和实际生产有一定的参考价值。 |
| 英文摘要: |
| Objective In this paper, forging die of 1KD engine conrods was chosen as the study object, for which structural analysis and design optimization were performed. Methods Simulation of 1KD conrods hot forging process was carried out by using DEFORM 3D, focusing on the effects of the three parameters associated with the cavity layout: the center flash groove depth, die cavity centre distance and rotation angle on the forming load, folding and forging die wear. Results The purpose of allocating blank quality and reducing the load could be achieved by using the production processes with two preforgings and final forging. Die cavity centre distance and rotation angle were the main factors affecting the forming load,and the center flash groove depth significantly influenced the tool wear. Conclusion Eventually the optimal combination of three parameters was obtained: the die cavity centre distance, rotation angle and the center flash groove depth were 32 mm,12o and 10 mm, respectively, which has a certain reference value for the mold design and actual production. |
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