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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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Chinese Journal Full-text Database 8 Hits
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