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《Journal of Shanghai Jiaotong University》 2005-S1
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The Non-Uniform Rational B-Splines (NURBS) Feedrate Adaptation for 3-Axis Computer Numerical Control (CNC) Machining

WANG Yu-han, LIU Kang, LI Yu-hao(School of Mechanical Eng., Shanghai Jiaotong Univ., Shanghai 200030, China)  
The interpolator of constant feedrate is widely used in today's NURBS interpolator, which would cause big chord error and feedrate fluctuation. To solve this problem, this paper proposed two NURBS interpolator methods: the interpolator of controlling chord error and the interpolator for constant material removal rate. The former can confine the chord error in a lower range, which can improve the machining accuracy; the latter can confine the chord error in a much lower range. More important, it can make the material removal rate constant, which can improve the machining quality and increase the service life of the cutter.
【Fund】: 国家高技术研究发展计划(863)项目(2002AA424042-2)
【CateGory Index】: TG659
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【Co-references】
Chinese Journal Full-text Database 8 Hits
1 ZHANG Li-yan(College of Mechanical and Electrial Engineering, Beijing University of Chemical Technology, Beijing 100029, China);Control of acceleration and deceleration in data sampling interpolation[J];Journal of Beijing University of Chemical Technology;2002-03
2 DING Zhi zhong (Hefei University of Technology, Hefei 230009, China);Explanation about the Principle of Bilinear Transformation Method[J];Journal of Electrical & Electronic Engineering Education;2004-02
3 Guo Xingui,Li Congxin (National Die & Mold CAD Engineering Research Center, Shanghai Jiaotong University, Shanghai 200030);Studying S-shape Acceleration/Deceleration Algorithm[J];Machine Tool & Hydraulics;2002-05
4 Peng Fangyu He Ying Li Bin (National NC System Engineering Research Center, Huazhong University of Science & Technology, Wuhan 430074);Look-Ahead Control in High Feed Rate NURBS Curve Interpolation[J];Journal of Computer-Aided Design & Computer Graphics;2006-05
5 DU Dao-shan,YAN Cun-liang,LI Cong-xin(National Die & Mold CAD Eng.Research Center,Shanghai Jiaotong Univ.,Shanghai 200030,China);An Adaptive NURBS Interpolator with Real-Time Look-Ahead Function[J];Journal of Shanghai Jiaotong University;2006-05
6 YU Yi-fei,LUO Liang-ling,LI Rui,XIAO Zhong-yue(College of Mechanical and Electrical Engineering,Nanchang University,Nanchang 330029,China);Influence of Index Algorithm of Acceleration/Deceleration on CNC Machining Error[J];Mechanical Engineering & Automation;2005-05
7 Zhao Wei 1Wang Taiyong 2Wan Shumin 2 1.Tianjin University of Technology and Education, Tianjin, 300222 2.Tianjin University,Tianjin, 300072;Acceleration-deceleration Control Method Based on NURBS Curve[J];China Mechanical Engineering;2006-01
8 LI Hongsheng;Comprehensinve position error control for high-speed contour motion[J];Modular Machine Tool & Automatic Manufacturing Technique;2003-11
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