航空腔型薄壁件铣削变形的预测

吉林大学学报(工学版)

航空腔型薄壁件铣削变形的预测

郭魂^1,2，左敦稳¹ ，刘远伟³，王珉¹，童国权¹

1．南京航空航天大学机电学院　南京，210016；2.常州工学院机电工程学院江苏常州，213002； 3.江苏省数字化制造技术重点(建设)实验室，江苏淮安，223001

收稿日期:2007-02-14 修回日期:2007-09-06 出版日期:2008-01-01 发布日期:2008-01-01
通讯作者: 左敦稳

Prediction of milling distortion for aero-thin-walled components

Guo Hun^1,2, Zuo Dun-wen¹, Liu Yuan-wei³, Wang Min¹, Tong Guo-quan¹

1.College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2. School of Mechanical and Electrical Engineering, Changzhou Institute of Technology, Changzhou 213002, China; 3.Digital Manufacturing Technology Lab of Jiangsu Province, Huai′an, 223001, China

Received:2007-02-14 Revised:2007-09-06 Online:2008-01-01 Published:2008-01-01
Contact: Zuo Dun-wen

摘要/Abstract

摘要： 针对应用在飞机中的腔薄壁件刚性差、极易产生加工变形，从而导致加工精度难以保证的问题，采用三维有限元方法，对在铣削力和初始残余应力场作用下的航空薄壁框类零件的加工变形进行了分析计算，得到了其加工变形规律。最后通过铣削试验验证了得到的变形规律的正确性，本研究可为预测和控制航空腔薄壁零件的加工变形提供方法和依据。

关键词: 刀具技术, 有限元方法, 加工变形, 薄壁件, 铣削力

Abstract:

The aero-thin-walled components are characterized by the thinness and its variability of the wall and low rigidity, they are liable to distortion during the machining process, so it is difficult to guarantee their machining precision. In view of the fact, to predict and control effectively their machining distortion, calculations of the milling distortion were performed for the aerothinwalled components by the 3-D finite element method considering the milling forces, the clamping forces and the initial residual stress field, and the behaviors of the milling distortion were revealed. The predicted distortion behavior was verified by the milling test and the positive result was obtained. The study is helpful to the prediction and the control of the machining distortion for the thin-walled components.

Key words: cutting tool technology, finite element method, machining distortion, thin-walled component, milling force

中图分类号:

TH123.2

郭魂，左敦稳，刘远伟，王珉，童国权 . 航空腔型薄壁件铣削变形的预测[J]. 吉林大学学报(工学版), 2008, 38(01): 84-88.

Guo Hun, Zuo Dun-wen, Liu Yuan-wei, Wang Min, Tong Guo-quan . Prediction of milling distortion for aero-thin-walled components[J]. 吉林大学学报(工学版), 2008, 38(01): 84-88.

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