铝合金框架压铸工艺数值模拟及分析  

Numerical simulation and analysis of pressure casting technology on aluminium alloy frame

作　　者：朱广余[1] 薛克敏[1] 李萍[1] 薛传妹[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,合肥230009

出　　处：《浙江科技学院学报》2009年第3期220-223,共4页Journal of Zhejiang University of Science and Technology

基　　金：中电科技集团38所委托项目(070301D2)

摘　　要：通过应用多种软件交换和数据接口技术,设计了正交实验以完成压铸过程数值模拟。结果表明:通过设置合理浇注系统、控制压铸速度和提高模具预热温度,可以有效减少铸件缩松缩孔;各参数对铸件缩松缩孔发生概率影响程度从大到小依次为浇注系统方式、模具预热温度、压铸速度;理想工艺方案为浇注系统a、压铸速度1 m/s、模具预热温度450℃。By using the technology of software changing and data interface,the orthogonal test is designed,and the numerical simulation of pressure casting process is completed.The result shows that the shrinkage porocity in cast can be reduced effectively by setting reasonable gating system,controlling the speed of pressure casting and increasing the preheating temperature of mold.The influencing factors of the probability of shrinkage porosity in cast in turn are the patterns of gating system,the preheating temperature of mold and the pressure casting speed.The perfect plan includes the gating system a,the pressure casting 1 m/s and the preheating temperature of mold 450 ℃.

关 键 词：压力铸造 数值模拟 缩松缩孔 显现概率 

分 类 号：TG249.2[金属学及工艺—铸造]