变速器主壳体高压铸造工艺中压射高低速切换点优化
Optimization of High and Low Speed Switching Position of Injection in High Pressure Casting Main Housing of the Gearbox
范寅生 1李亨 1鲁超 2李明 3赵永征 3吴玉程1
作者信息
- 1. 合肥工业大学材料科学与工程学院,合肥 230009
- 2. 合肥亚明汽车部件有限公司,合肥 231131
- 3. 合肥江淮铸造有限责任公司,合肥 231131
- 折叠
摘要
对9AT汽车变速箱主壳体的压铸成形过程进行充型仿真,分析了不同压射高低速切换点对金属液流动和充型的影响.结果表明,当压射低速值为0.2 m/s,高速值为3.5 m/s,高低速切换点为560 mm时,模流平稳,卷气概率最低.采用该工艺参数进行试生产,铸件组织致密,力学性能较好.
Abstract
Based on 9AT transmission housing,filling simulation was carried out for the die-casting process of the main housing and the influence of high and low speed switching positions on the flow and filling of the metal fluid was analyzed.The results reveal that with the low speed of 0.2 m/s,the high speed of 3.5 m/s and the switching position of 560 mm,the filling flow is smooth and the probability of gas-entrapment is the lowest.The optimized process parameters were adopted for the trial production,and products are dense with the satisfied mechanical properties.
关键词
压铸/变速器壳体/模拟/力学性能Key words
Die Casting/Transmission Housing/Simulation/Mechanical Properties引用本文复制引用
基金项目
新能源汽车用低成本铝合金及成形关键技术开发与产业化应用项目(JZ2022AFKJ0032)
中央高校基本科研业务费专项资金资助项目(JZ2021HGTB0100)
合肥市科技重大专项资助项目(2022-SED-0029)
出版年
2024
NETL
NSTL
维普
万方数据