| 端铣加工表面误差预报模型 |
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| 引用本文： | 张发平,孙厚芳,程光耀.端铣加工表面误差预报模型[J].北京理工大学学报,2004,24(1):31-34. |
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| 作者姓名： | 张发平 孙厚芳 程光耀 |
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| 作者单位： | 北京理工大学,机械与车辆工程学院,北京,100081;北京理工大学,机械与车辆工程学院,北京,100081;北京理工大学,机械与车辆工程学院,北京,100081 |
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| 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.
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| 关 键 词： | 端铣 表面误差 预报模型 有限元分析 工艺系统变形 |
| 文章编号： | 1001-0645(2004)01-0031-04 |
| 收稿时间： | 5/7/2003 12:00:00 AM |
A Prediction Model for Surface Errors in Face Milling |
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| ZHANG Fa-ping,SUN Hou-fang and CHENG Guang-yao.A Prediction Model for Surface Errors in Face Milling[J].Journal of Beijing Institute of Technology(Natural Science Edition),2004,24(1):31-34. |
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| Authors: | ZHANG Fa-ping SUN Hou-fang and CHENG Guang-yao |
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| Affiliation: | School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China;School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing100081, China |
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| Abstract: | 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. |
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| Keywords: | face milling surface error prediction model finite element analysis workpiece-fixture system's deformation |
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