薄壁铝合金铸件低压铸造工艺优化及设计  

Design and Optimization of Low-pressure Casting Process for Al-alloy Thin-walled Casting

作　　者：闫庆斌[1] 王月琴[1] 李世嘉[1] 庞尔楠[1] 

机构地区：[1]山西机电职业技术学院,山西长治046011

出　　处：《铸造技术》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)

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.

关 键 词：低压铸造 数值模拟 工艺优化 薄壁铸件 

分 类 号：TG292[金属学及工艺—铸造]