铝合金制动钳金属型重力铸造工艺的多目标优化
Multi-Objective Optimization of Permanent Mold Gravity Casting Process of Aluminum Alloy Brake Calipers
张涛 1苏小平 1毛旭海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
利用数值模拟对铝合金制动钳金属型重力铸造过程进行分析,预测了钳体中缩松缩孔缺陷的分布情况,并分析其形成原因,改进了冷却方案,基于正交试验对工艺参数进行了多目标优化.得到最优工艺参数为:浇注时间28 s、浇注温度700℃、模具预热温度300℃、冷却水温度35℃.结果表明,优化后的制动钳铸件无缩松缩孔缺陷.通过生产试制验证了此优化工艺的可行性.
Abstract
The permanent mold gravity casting process of aluminum alloy brake calipers was analyzed by numerical simulation.The shrinkage porosity defects distribution of the brake caliper was predicted.An improved cooling scheme was added by analyzing the causes.Based on this,the multi-objective optimization of the process parameters was performed by using orthogonal tests.The optimal process parameters were:pouring time of 28 seconds,pouring temperature of 700℃,die preheating temperature of 300℃,cooling water temperature of 35℃.The results showed that the optimized brake caliper casting had no shrinkage porosity defects.The feasibility of this optimization process was verified by production trial.
关键词
制动钳/铝合金/金属型重力铸造/数值模拟/工艺优化Key words
aluminum alloy/permanent mold gravity casting/uumerical simulation/Process optimization引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据