标题：Experiments and Simulation of Elastic-plastic Deformation in Thin Wall Part Milling
作者：Tang, Aijun; Liu, Zhanqiang
作者机构：[Tang, Aijun] Shandong Jianzhu Univ, Coll Mech & Elect Engn, Jinan, Peoples R China.; [Tang, Aijun] Shandong Univ, Sch Mat Sci & Engn, Jinan, Shando 更多
会议名称：International Conference on Advanced Design and Manufacturing Engineering (ADME 2011)
会议日期：SEP 16-18, 2011
来源：ADVANCED MANUFACTURING TECHNOLOGY, PTS 1-3
关键词：Elastic-plastic deformation; Thin wall part; Bending springback
摘要：Aircraft components are mostly made by aluminum alloy as thin wall types. These parts are usually end milled to required thicknesses and tight tolerances in specific areas. The thin wall parts are difficult to machine because they are easy to vibrate and deformed due to their lower rigidity. This paper proposes a new elastic-plastic deformation model which is suitable for prediction of machining deformations of end milled thin wall parts. The theoretical deformation model is established on the basis of the equations of Von Karman. The effect of bending springback is also taken into account. The part deformations are simulated using FE analysis and Matlab. Milling experiments on a CNC machining center are performed. The experimental results show that the deformations for the peripheral milling of thin wall parts can be captured with very high accuracy using the proposed elastic-plastic deformation prediction model.