基于响应面法的A356铝合金转向器阀壳体低压铸造参数优化
Optimization for Low-Pressure Casting Parameters of A356 Aluminum Alloy Steering Valve Shell Based on Response Surface Method
陶健 1苏小平 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
为了提高A356 铝合金转向器阀壳体低压铸造的综合质量,通过Box-Behnken方法建立以浇注温度、模具预热温度、浇注时间为研究因素,缩松缩孔率、二次枝晶臂间距为响应目标的响应面试验设计并进行数值模拟.运用遗传算法进行了多目标优化,并以优化后的参数进行试验验证.结果表明,当浇注温度 700℃、模具预热温度 300℃、浇注时间 9.5 s时,铸件无明显缩松缩孔缺陷,且力学性能较好.
Abstract
In order to improve the comprehensive quality of low-pressure casting of A356 aluminum alloy steering valve shell,the Box-Behnken method was used to establish the response surface experimental design with pouring temperature,die preheating temperature and pouring time as the research factors,shrinkage porosity and secondary dendrite arm spacing as the response objectives.And the numerical simulation was carried out.The multi-objective optimization was performed using a genetic algorithm,and the experimental verification was carried out using optimized parameters.The results show that when the pouring temperature is 700℃,the die preheating temperature is 300℃and the pouring time is 9.5 s,the casting has no obvious shrinkage defects and good mechanical properties.
关键词
响应面法/数值模拟/多目标优化Key words
response surface method/numerical simulation/multi-objective optimization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