铝合金发动机端盖压铸数值模拟与工艺优化
Numerical Simulation and Process Optimization of Die Casting for Aluminum Alloy Engine End Caps
卢信学 1邓益民 1束学道 1孙宝寿 1李光浩2
作者信息
- 1. 宁波大学机械工程与力学学院,宁波 315211;浙江省零件轧制成形技术研究重点实验室,宁波 315211
- 2. 宁波博大机械有限公司,宁波 315211
- 折叠
摘要
对铝合金发动机后端盖进行了压铸充型凝固过程数值模拟,对可能产生缩孔、缩松的部位进行预测.分析了充型、凝固过程,对冷却水道进行优化,采用正交试验优化了压铸工艺参数:浇注温度为680℃,压射速度为4 m/s,模具预热温度为220℃.用优化后的方案进行压铸生产和检测,结果表明压铸件品质得到显著提高.
Abstract
The numerical simulation of die casting mold filling and solidification process of the rear end cover of an alu-minum alloy engine was carried out,and the possible shrinkage cavity and porosity were predicted.The filling and solidification were analyzed,and the cooling channel was optimized.The optimal process parameters were determined by orthogonal test:pouring temperature of 680℃,injection velocity of 4 m/s,preheating temperature of 220℃.The optimized scheme was used for die casting production and inspection.The test results reveal that the quality of die cast-ing is significantly improved.
关键词
铝合金/压铸/数值模拟/正交试验Key words
Aluminium Alloy/Die-casting/Numerical Simulation/Orthogonal Test引用本文复制引用
基金项目
宁波市北仑区科技创新团队资助项目(2020BL0003)
出版年
2024
NETL
NSTL
万方数据