Paper Title:
Real-Time NURBS Interpolator with an Optimal Feed for High-Speed Machining
  Abstract

NURBS interpolation has many advantages over the traditional linear or circular interpolation in high-speed machining. The existing work in this regard focuses on adaptive feed interpolation considering the chord error constraints and tangent acceleration limits. However, regardless of the dynamic characteristics of individual axis, performance will inevitably suffer when the system is called upon to execute a complex trajectory beyond the range of its capabilities. The intent of the present work is to provide an optimal feed interpolation method respecting both the chord error constraint and the drive constraint of each axis. A look-ahead scheme is applied with a moving window to augment the calculation efficiency for real-time application. Simulations are performed to verify the resulting feedrate, acc/dec profiles and the real-time performance of the proposed interpolator.

  Info
Periodical
Advanced Materials Research (Volumes 69-70)
Edited by
Julong Yuan, Shiming Ji, Donghui Wen and Ming Chen
Pages
461-465
DOI
10.4028/www.scientific.net/AMR.69-70.461
Citation
J. C. Feng, Y. H. Wang, M. Chen, J. S. Wang, "Real-Time NURBS Interpolator with an Optimal Feed for High-Speed Machining", Advanced Materials Research, Vols. 69-70, pp. 461-465, 2009
Online since
May 2009
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Price
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