| 七档自动变速箱前壳体压铸工艺优化 |
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| 引用本文： | 张伟,方健儒,熊守美.七档自动变速箱前壳体压铸工艺优化[J].铸造,2012,61(5):480-484. |
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| 作者姓名： | 张伟 方健儒 熊守美 |
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| 作者单位： | 1. 教育部重点实验室,清华大学机械工程系,北京100084
2. 一汽铸造有限公司,吉林长春,130062 |
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| 基金项目： | “高档数控机床与基础制造装备”科技重大专项(2011ZX04001-071,2011ZX04014-052);国家科技支撑计划项目(2011BAE21B02) |
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| 摘 要： | 采用铸造过程数值模拟分析技术,对七档自动变速箱前壳体的三种流道设计方案条件下流场分布进行对比分析,获得了最优浇注系统设计方案:即三个主浇道、一个辅助浇道的设计方案；并对最优浇注系统方案下铸件凝固收缩缺陷进行分析,确定模具冷却系统的最佳分布方案.通过优化工艺方案的实际产品气密性的检测和外观检测的结果表明:这种经过压铸工艺优化后的浇注系统和冷却系统设计方案较为合理,可为类似大型、复杂变速箱壳体高压铸造工艺方案的开发提供参考依据.
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| 关 键 词： | 数值模拟 高压铸造 变速箱壳体 工艺优化 |
Optimization of the Die Casting Process of Seven-Gear Auto Transmission Front Case |
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| ZHANG Wei
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FANG Jian-ru
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XIONG Shou-mei.Optimization of the Die Casting Process of Seven-Gear Auto Transmission Front Case[J].Foundry,2012,61(5):480-484. |
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| Authors: | ZHANG Wei FANG Jian-ru XIONG Shou-mei |
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| Affiliation: | 1 (1.The Key Laboratory for Advanced Materials Processing Technology,Ministry of Education of China,Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China; 2.FAWFoundry Co.,Ltd.,Changchun 130062,Jilin,China) |
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| Abstract: | After a detailed comparison of the mold filling simulation results of three different runner systems in the die design of a seven-gear auto transmission case casting,the optimal scheme of the runner system was obtained.Through the evaluation of the solidification simulation results on locations of hot spots and shrinkage porosities,the cooling design for the die was determined.The optimal die design of the casting was successfully used in practical application and the results for air-leakage test and the appearance observation of the castings show that numerical simulation could be used as a tool for the die design of large and complex die design and this optimal die design of the seven-gear auto transmission case could be used as a reference for the die design of similar products. |
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| Keywords: | numerical simulation high pressure die casting process transmission case process optimization |
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