引用本文:杨长祺 QIN Datong.[en_title][J].Journal of Chongqing University (English Edition),2002,1(2):20~23
.Tool selection and collision-free in 5-axis numerical control machining of free-form surfaces[J].Journal of Chongqing University (English Edition),2002,1(2):20~23
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Tool selection and collision-free in 5-axis numerical control machining of free-form surfaces
杨长祺 QIN Datong
Author NameAffiliation
摘要:
The methodology of 5-axis cutter selection to avert collision for free-form surface machining by flat-end cutters is presented.The combination of different cutters is adopt aiming at short machining time and high precision.The optimal small cutter is dete
关键词:  5轴数控加工 自由曲面 最优工具选择 刀具路径规划
DOI:
分类号:TG659
基金项目:Funded by the Doctorate Degree Program Foundation of the Ministry of Education (No. 2000061120)
Tool selection and collision-free in 5-axis numerical control machining of free-form surfaces
YANG Changqi,QIN Datong,SHI Wankai State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400044,P. R. Chinna
Abstract:
The methodology of 5-axis cutter selection to avert collision for free-form surface machining by flat-end cutters is presented. The combination of different cutters is adopt aiming at short machining time and high precision. The optimal small cutter is determined based on the geometric information of the points where a cutter most probably collide with the machined surface. Several larger cutters are selected to machine the surface in order to find the interference-free area. The difference of machining time for this area between the optimal small cutter and the large cutters is calculated. The functional relationship between the machining time and the radius of a cutter is established, by which the optimal number of cutters is obtained. The combination of cutters, which possesses the minimum overall machining time, is selected as the optimal cutter sizes. A case study has demonstrated the validity of the proposed methodology and algorithms.
Key words:  optimal tool selection,collision-free,tool path generation,free-form surfaces,flat-end cutter
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