Corner-milling of Thin Walled Cavities on Aeronautical Components
This article presents a mathematical model of helical end-milling forces through experimental identification of the cutting co-efficients and analyzes the changes of corner-milling forces under different conditions. In allusion to the corner-milling process, the relationship between working parameters and the corner coordinates is investigated by way of combination of tool tracing and cutting geometrodynamics. The milling parameters are optimized by changing the coordinates of tool center and working parameters without altering cutting forces. By applying the optimized parameters to milling practice, a comparison is made to show the improved product quality. Based on these optimized parameters, a finite element method (FEM) program is used to compute deformation values of a workpiece's corner, which evidences few effects that optimized parameters can exert on the comer deformation.
作 者： Wu Qiong Zhang Yidu Zhang Hongwei 作者单位： State Key Laboratory of Virtual Reality Technology and Systems, School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China 刊 名： 中国航空学报（英文版） ISTIC 英文刊名： CHINESE JOURNAL OF AERONAUTICS 年，卷(期)： 2009 22(6) 分类号： V2 关键词： machining mathematical models trace analysis milling cutters parameter estimation optimization deformation finite element method