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3차 B-스플라인 곡선 기반의 5축 공구 경로 스무딩

Five-Axis Tool Path Smoothing based on Cubic B-Spline Curves

Journal of the Korean Society for Precision Engineering 2020;37(3):217-224.
Published online: March 1, 2020

1 단국대학교 기계공학과

1 Department of Mechanical Engineering, Dankook University

#E-mail: scjee@dku.edu, TEL: +82-31-8005-3504
• Received: September 23, 2019   • Accepted: January 16, 2020

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Research on three-section type tool path planning algorithm for tooth hot pressing model cutting
    Lijun Zhang, Shaowei Fang, Jiayi Xu, Ning Yang, Weijian Guo, Hang Wang, Changliang Li
    Computers & Industrial Engineering.2022; 163: 107817.     CrossRef

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Five-Axis Tool Path Smoothing based on Cubic B-Spline Curves
J. Korean Soc. Precis. Eng.. 2020;37(3):217-224.   Published online March 1, 2020
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Five-Axis Tool Path Smoothing based on Cubic B-Spline Curves
J. Korean Soc. Precis. Eng.. 2020;37(3):217-224.   Published online March 1, 2020
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Five-Axis Tool Path Smoothing based on Cubic B-Spline Curves
Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Flow chart of the proposed smoothing method
Fig. 2 Adjustment of tool orientation
Fig. 3 Schematic of the proposed smoothing curves
Fig. 4 Basis functions of a non-uniform B-spline
Fig. 5 Control points generation
Fig. 6 Geometric relation between control points and a B-spline curve
Fig. 7 Modification of internal division points for NC blocks
Fig. 8 Schematic of the smoothing error tolerance
Fig. 9 Simultaneous 5-axis control system
Fig. 10 Generation of tool path used in experiment
Fig. 11 Comparison of tool path interpolations
Fig. 12 Comparison of contour errors in experiment
Fig. 13 Comparison of dynamic motion performance
Five-Axis Tool Path Smoothing based on Cubic B-Spline Curves

Comparison of experimental results

Contour error [mm] Acceleration [m/s2] Jerk [× 103 m/s3]
RMS Max RMS Max RMS Max
Linear interpolation 1.97 5.91 0.31 3.04 0.45 2.85
Proposed method 0.42 1.63 0.22 0.89 0.39 1.58
Reduction ratio [%] 78.8 72.4 30.3 70.8 13.8 44.6
Table 1 Comparison of experimental results