数值模拟辅助设计小型外壳体铸造工艺  

Numerical Simulation Assisted Design of Small Housing Shell Casting Process

作　　者：邓高生 刘勇 牟宜华 乔兴华 杨旸 DENG Gao-sheng;LIU Yong;MOU Yi-hua;QIAO Xing-hua;YANG Yang(CSSC Hengyuan Technology Co.,Ltd.,Chongqing 404100,China)

机构地区：[1]中国船舶重工集团衡远科技有限公司,重庆404100

出　　处：《铸造》2024年第12期1761-1765,共5页Foundry

摘　　要：某小型外壳体作为动力装置外壳,铸件不允许有缩孔、渣孔及砂眼等缺陷存在,且组织致密。为降低铸件试制后的质量风险,设计了5种铸造工艺方案,利用计算机数值模拟分析技术,分析5种方案下外壳体的充型与凝固过程,确定最佳工艺方案并进行生产验证。结果表明,方案5为最佳工艺方案:外壳体内壁增加0~7 mm补贴余量和放满20 mm厚随形冷铁,获得了无疏松和组织致密的优质铸件。A small housing shell serves as the housing for a power device,and the castings are not allowed to have defects such as shrinkages,slag pores,and sand inclusions,and the organization is dense.In order to reduce the quality risks after the trial production,five casting process solutions were designed,and the filling and solidification processes of the housing shell were analyzed using computer numerical simulation technology.The optimal process solution was determined and validated through production.The results showed that scheme 5 was the optimal process solution.The inner wall of the housing shell was increased by 0-7 mm of allowance,and 20 mm thick conformal chill was placed to obtain a shrinkage-free,dense casting.

关 键 词：铝合金 壳体铸件 模拟分析 铸造工艺设计 

分 类 号：TG292[金属学及工艺—铸造] TP391.99[自动化与计算机技术—计算机应用技术]