基于仿真模拟的稀土镁合金铸造过程裂纹控制研究  

Cracking Control of Rare Earth Magnesium Alloys during Casting Process Based on Numerical Simulation

作　　者：姚斐[1] 刘颖卓[1] 王堃[1] 王先飞[1] 陈琦铭 张应平 袁勇[1] Yao Fei;Liu Yingzhuo;Wang Kun;Wang Xianfei;Chen Qiming;Zhang Yingping;Yuan Yong(Shanghai Spaceflight Precision Machinery Institute)

机构地区：[1]上海航天精密机械研究所

出　　处：《特种铸造及有色合金》2023年第3期342-344,共3页Special Casting & Nonferrous Alloys

摘　　要：针对稀土镁合金铸造过程中的开裂问题,采用ProCAST软件对某舱体铸造过程应力场进行仿真模拟。结果表明,在应力较大处改进铸造圆角,可有效降低该部位的应力。通过采取增大过渡圆角、添加工艺拉筋等措施,解决了铸造过程产生裂纹的问题,生产出了合格的铸件。Aiming at the crack occurred in the production of rare earth magnesium alloys,the ProCAST software was applied to simulate the stress distribution of the casting process.Numerical simulation results and casting process tests reveal that the stress can be reduced by modifying the fillet size of end frame.By increasing the transitional fillet size and adding reinforcing rib,the crack could be eliminated and the cabin was successfully produced.

关 键 词：舱体铸件 砂型铸造 仿真模拟 裂纹控制 

分 类 号：TG245[金属学及工艺—铸造] TG146.22[一般工业技术—材料科学与工程]