复合金属型模具群铸磨球工艺早期失圆机理的数值分析  

The numerical analysis on early lose round reason of grinding ball by compound metal mould group casting technology

作　　者：刘剑[1] 张晓博[2] 秦莉 何晓东[1] 

机构地区：[1]河北工业大学机械工程学院,天津300132 [2]河北工业大学材料工程学院,天津300132 [3]天津成套设备局工程监理有限公司,天津300129

出　　处：《机械设计与制造》2007年第8期180-182,共3页Machinery Design & Manufacture

摘　　要：在对铸造磨球凝固过程进行理论分析的基础上,利用华铸CAE软件对复合金属型模具群铸磨球工艺进行充型凝固特性三维数值模拟研究,确定了造成磨球出现早期失圆和缩松缩孔缺陷的主要原因,为进一步改进复合金属型模具群铸磨球工艺奠定了理论基础。After the theoretical analysis of the casting grinding balls solidification process with the Finite difference Method （ FDM ）, the3-D numerical calculation is proceeding for simulating the metal mould flowing and the group casting balls s ation based on the FDM computer aided s The main reasons cruising the failures have been found through the numerical simulation. Simultaneously; this paper also puts forward measures for improving the casting process of this kind of grinding balls. So the numerical simulation has established the strong foundation for improving the compound metal mould group casting technology.

关 键 词：磨球 复合金属型 群铸工艺 早期失圆 数值分析 

分 类 号：TH16[机械工程—机械制造及自动化] TP115[自动化与计算机技术—控制理论与控制工程]