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

作　　者：卢信学 邓益民[1,2] 束学道 孙宝寿[1,2] 李光浩 Lu Xinxue;Deng Yimin;Shu Xuedao;Sun Baoshou;Li Guanghao(Faculty of Mechanical and Mechanics,Ningbo University,Ningbo 315211;Zhejiang Provincal Key Laboratory of Part Rolling Technology,Ningbo 315211;Ningbo Boda Machinery Co.,Ltd.,Ningbo 315211)

机构地区：[1]宁波大学机械工程与力学学院,宁波315211 [2]浙江省零件轧制成形技术研究重点实验室,宁波315211 [3]宁波博大机械有限公司,宁波315211

出　　处：《特种铸造及有色合金》2024年第3期424-427,共4页Special Casting & Nonferrous Alloys

基　　金：宁波市北仑区科技创新团队资助项目(2020BL0003)。

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。The numerical simulation of die casting mold filling and solidification process of the rear end cover of an aluminum 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 casting is significantly improved.

关 键 词：铝合金 压铸 数值模拟 正交试验 

分 类 号：TG249.2[金属学及工艺—铸造] TP311[自动化与计算机技术—计算机软件与理论]