基于正交试验的铝合金减速机壳体低压铸造工艺优化
Process Optimization of Low-Pressure Die Casting of Aluminum Alloy Reduction Gears Shell Based on Orthogonal Test
吴琪琪 1苏小平 1杨闯 1周大双 1康正阳1
作者信息
- 1. 南京工业大学 机械与动力工程学院, 江苏 南京 211816
- 折叠
摘要
利用数值模拟方法对铝合金蜗轮减速机壳体低压铸造过程进行分析,预测壳体中可能产生的缩松缩孔缺陷及位置分布,并分析其形成原因.在此基础上,通过改进冷却方案,并基于正交试验对工艺参数进行了多目标优化.得到的最优工艺参数为:浇注温度740℃、模具预热温度 240℃、冷却水温度 20℃.结果表明,优化后的壳体无缩松缩孔缺陷.通过生产试制和金相分析,验证了此优化工艺的可行性.
Abstract
The numerical simulation method was used to analyze the low-pressure die casting process of aluminum alloy worm wheel reduction gears shell,and the possible shrinkage cavity and porosity and their position distribution in the shell were predicted,and the reasons for their formation were analyzed.On this basis,by improving the cooling scheme and optimizing process parameters based on orthogonal experiments,a multi-objective optimization was carried out.The optimal process parameters are:pouring temperature of 740℃,die preheating temperature of 240℃,cooling water temperature of 20℃.The results show that the optimized shell has no shrinkage porosity defects.The feasibility of the optimization process is verified by production trial and metallographic analysis.
关键词
减速机壳体/低压铸造/工艺优化/金相分析Key words
reduction gears shell/low-pressure die casting/process optimization/metallographic analysis引用本文复制引用
基金项目
江苏省高等学校自然科学研究课题(19KJB460005)
出版年
2024
NETL
NSTL
万方数据