摘要
利用viewcast软件模拟铸件的充型和凝固过程,从凝固过程模拟结果发现铸件局部厚大部位容易产生缩孔、缩松缺陷。根据模拟结果和理论分析,设计了合适的冷铁和工艺补贴,同时,将浇注温度从700℃降低至680℃;对改进后的方案再次进行凝固模拟,铸件缩孔和缩松缺陷消失。
The numerical simulation software Viewcast was used to simulate The mold-filling and solidification stages of AI-alloy thin-walled casting. The simulation result show that the shrinkage defects formed in the thick-walled part of the cast. The densener and the feeding channel were designed based on the simulation result and theoretical analysis and The pouring temperature decreased from 700℃ to 680℃. The improved process was re-simulated, and the result show that the shrinkage defects are eliminate.
出处
《铸造技术》
CAS
北大核心
2014年第1期206-208,共3页
Foundry Technology
基金
山西省高等学校教学改革(高职)(项目编号:JG2013027)
关键词
低压铸造
数值模拟
工艺优化
薄壁铸件
low-pressure casting
numerical simulation
optimization of process
thin-walled casting
