| 汽车镁合金控制臂挤压铸造缺陷的预测分析 |
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| 引用本文： | 曹韩学,赵东林,郝婷婷,刘榆. 汽车镁合金控制臂挤压铸造缺陷的预测分析[J]. 特种铸造及有色合金, 2012, 32(1): 52-54 |
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| 作者姓名： | 曹韩学 赵东林 郝婷婷 刘榆 |
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| 作者单位： | 1. 重庆大学材料科学与工程学院;国家镁合金材料工程技术研究中心
2. 重庆大学材料科学与工程学院 |
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| 基金项目： | 重庆市科技攻关项目，广东省科技计划项目 |
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| 摘 要： | 结合数值模拟,研究了镁合金汽车控制臂挤压铸造过程中的温度场和速度矢量场,分析了在挤压铸造过程中可能出现的缺陷。结合后期试验,对零件缺陷出现的位置、尺寸以及是否符合产品安全性能指标要求进行验证分析。结果表明,在浇注温度为680℃,挤压速度为1m/s,增压压力为70MPa时生产的镁合金汽车控制臂,其缺陷的分布和尺寸均在安全指标范围之内,零件结构设计和成形工艺方案符合性能要求。
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| 关 键 词： | 镁合金 挤压铸造 数值模拟 缺陷预测 |
Defect Prediction Analysis of Squeeze Casting Magnesium Alloy Automobile Control Arm |
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| Cao Hanxue , Zhao Donglin , Hao Tingting , Liu Yu. Defect Prediction Analysis of Squeeze Casting Magnesium Alloy Automobile Control Arm[J]. Special Casting & Nonferrous Alloys, 2012, 32(1): 52-54 |
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| Authors: | Cao Hanxue Zhao Donglin Hao Tingting Liu Yu |
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| Affiliation: | 1(1.College of Materials Science and Engineering,Chongqing University;2.National Engineering Research Center for Magnesium Alloy Materials) |
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| Abstract: | Temperature field and velocity vector field in squeezing casting magnesium alloy automobile control arm were simulated by numerical simulation software to predict the possible defects in the control arm during squeezing casting process.Combining with experiments,the position and size of defects occurred in the squeezing casting control arm were analyzed,and the safety performance of the control arm was verified.The results show that the distribution and size of defects are located in range of safety index for produced magnesium alloy control arm with pouring at 680 ℃ and squeezing at 1 m/s as well as holding pressure of 42 MPa,and structure design and forming process meet the performance requirements. |
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| Keywords: | Magnesium Alloy Squeezing Casting Numerical Simulation Defect Prediction |
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