Share Email Print
cover

Proceedings Paper

Conformal interpolating algorithm based on B-spline for aspheric ultra-precision machining
Author(s): Chenggui Li; Dan Sun; Min Wang
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Numeric control machining and on-line compensation for aspheric surface are key techniques for ultra-precision machining. In this paper, conformal cubic B-spline interpolating curve is first applied to fit the character curve of aspheric surface. Its algorithm and process are also proposed and imitated by Matlab7.0 software. To evaluate the performance of the conformal B-spline interpolation, comparison was made between linear and circular interpolations. The result verifies this method can ensure smoothness of interpolating spline curve and preserve original shape characters. The surface quality interpolated by B-spline is higher than by line and by circle arc. The algorithm is benefit to increasing the surface form precision of workpiece during ultra-precision machining.

Paper Details

Date Published: 9 June 2006
PDF: 5 pages
Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 61493E (9 June 2006); doi: 10.1117/12.674350
Show Author Affiliations
Chenggui Li, Beihang Univ. (China)
Dan Sun, Beihang Univ. (China)
Min Wang, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 6149:
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Shangming Wen; Yaolong Chen; Ernst-Bernhard Kley, Editor(s)

© SPIE. Terms of Use
Back to Top