华铸CAE消失模铸造模拟软件的开发与应用  

Development and Application of Inte CAST Lost-Foam Casting Simulation Software

作　　者：周建新[1] 吴凯[1] 殷亚军[1] 沈旭[1] 廖敦明[1] 陈涛[1] 

机构地区：[1]华中科技大学材料成形与模具技术国家重点实验室,湖北武汉430074

出　　处：《铸造设备与工艺》2016年第2期37-41,共5页Foundry Equipment & Technology

基　　金：国家数控重大专项(2012ZX04012-011);材料成形与模具技术国家重点实验室自主课题的资助

摘　　要：本文针对消失模铸造特点,在分析已有界面推移模型的基础上,综合考虑金属流动时受到模样分解产生气体压力的阻碍作用,建立了将气隙压力作为流动前沿的边界条件进行计算的界面推移模型,并利用相应的数值求解方法,模拟消失模充型凝固过程。为验证模型的有效性,本文引入基本计算模型的模拟,并与砂型模拟结果的对比分析。同时,通过系统集成以及引入消失模特有的参数设置功能,开发了华铸CAE消失模铸造模拟软件。本文给出了消失模铸造CAE软件在铸铁合金上的应用实例。应用表明,该软件能够有效地预测铸件可能产生的卷气夹渣、孔松缺陷、裂纹和变形等,并且能够根据预测结果快速有效地提供优化的工艺方案,直接指导实际生产。According to characteristics of Lost Foam Casting （LFC） process and considering the gas pressure impediment to the metal flow caused by pattern decomposition, interface moving model is established and the gap pressure is as boundary eondation of meh flow fi＇ont. Con＇esponding numerical solution method is applied to simulate filling and solidification process of I,FC. To verify the validity of the model, computing of basic test model is introduced and compares the simulation resuhs between LFC and general gravity saud casting. By integrating the specific process parameter setting and corresponding functional system interface for LFC, InteCAST-Lost Foam simulation software is developed. The pracLieal easting design of grey iron in LFC is given. The application shows that the proposed models could effectively predict the possible defect, and provide useful guidance fiw designer to optimize casting process solutions to directly improve the actual production.

关 键 词：铸造CAE技术 消失模铸造 华铸CAE 

分 类 号：TG249.6[金属学及工艺—铸造] TP391.7[自动化与计算机技术—计算机应用技术]