| 大型复杂铝合金汽车动力部件的压铸技术开发 |
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| 引用本文： | 张百在,万里,黄志垣,涂云松,常移迁,徐飞跃,黄明军,张孝水,廖伟平,陈亮.大型复杂铝合金汽车动力部件的压铸技术开发[J].特种铸造及有色合金,2009,29(11). |
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| 作者姓名： | 张百在 万里 黄志垣 涂云松 常移迁 徐飞跃 黄明军 张孝水 廖伟平 陈亮 |
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| 作者单位： | 1. 广东鸿图科技股份有限公司
2. 华中科技大学材料成形与模具技术国家重点实验室 |
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| 摘 要： | 针对某大型复杂铝合金动力部件的压铸成形,应用数值模拟和物理模拟方法,在准确把握铝合金液体流动充型状态的基础上,提出了改善铝液流动形态,优化真空排气结构的技术措施,大大减少了铸件内部的卷气缺陷.同时还采用活块、局部加压、模温精确控制等技术手段消除了内部缩孔/缩松缺陷,使铸件外观及内部品质均达到了设计要求,在短期内即实现了批量生产.
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| 关 键 词： | 气孔 数值模拟 物理模拟 大型复杂铝合金 真空压铸 |
Development of Aluminum Alloy Large Complicated Vehicle Power Parts by Die Casting |
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| Zhang Baizai,Wan Li,Huang Zhiyuan,Tu Yunsong,Chang Yiqian,Xu Feiyue,Huang Mingjun,Zhang Xiaoshui,Liao Weiping,Chen Liang.Development of Aluminum Alloy Large Complicated Vehicle Power Parts by Die Casting[J].Special Casting & Nonferrous Alloys,2009,29(11). |
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| Authors: | Zhang Baizai Wan Li Huang Zhiyuan Tu Yunsong Chang Yiqian Xu Feiyue Huang Mingjun Zhang Xiaoshui Liao Weiping Chen Liang |
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| Abstract: | Aiming at a die casting large complicated aluminum alloy power parts, some technological ways including improving flow types and optimizing vacuum exhausting structure are employed to significantly reduce the gas-entrapment defects in the parts on the basis of understanding flow and filling process of liquid aluminum alloy by numerical simulation and physical examination. Meanwhile, shrinkage porosity (hole) in the parts is eliminated by adopting movable insert, local pressurization and exact control for die temperature. Through above technological ways, both the appearance and quality of the parts can meet the designing requirements, realizing volumetric-production in a short time. |
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| Keywords: | Gas Hole Numerical Simulation Physical Examination Large Complicated Aluminum Alloy Parts Vacuum Die Casting |
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