摘要
通过对工艺系统的受力分析,考虑整个工艺系统的受力变形对表面加工误差的影响,提出了端铣加工表面误差的静态预报模型.该模型可以对复杂表面形状零件的端铣加工表面误差进行预报.针对通用有限元程序计算耗时较长的特点,设计了一种适用于本系统的有限元计算新方法,缩短了计算时间.同时开发了端铣加工表面误差预报的软件,可应用于CAD/CAM/CAE软件包.经实验验证,该模型预报结果和实测值有很好的一致性.
Presents a static model for the prediction of surface errors in face milling. Effects of the integrated workpiece fixture system's elastic deformation have been taken into account. The model can be used for the prediction of complex workpiece geometry in face milling. In order to obviate long computing involved in finite element analysis, a quick algorithm has been put forward. A software package has been developed to predict the machined surface errors, and can be used as a part of CAD/CAE/CAM packages. Good agreement has been found between predicted values and verification results.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2004年第1期31-34,39,共5页
Transactions of Beijing Institute of Technology
基金
国家部委预研项目(0441318.13.1)
关键词
端铣
表面误差
预报模型
有限元分析
工艺系统变形
face milling
surface error
prediction model
finite element analysis
workpiece-fixture system's deformation
