LOOK-AHEAD NURBS-PH INTERPOLATORS FOR HIGH SPEED CNC MILLING

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MOETAKEF IMANI B.; GHANDEHARIUN A.

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Paper Information

Journal: Journal of Applied and Computational Sciences in Mechanics Year:2011 | Volume:23 | Issue:1 (5) Page(s): 83-95

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Title

LOOK-AHEAD NURBS-PH INTERPOLATORS FOR HIGH SPEED CNC MILLING

Author(s)

MOETAKEF IMANI B. | GHANDEHARIUN A. | Issue Writer Certificate

Keywords

NUMERICAL CONTROLQ2

CNC PARAMETRIC INTERPOLATIONQ2

PH CURVEQ2

Abstract

Various methods for parametric interpolation of NURBS curves have been proposed in the past. However, the errors caused by the approximate nature of the NURBS interpolator were rarely taken into account. This paper proposes an integrated look-ahead algorithm for parametric interpolation along NURBS curves. The algorithm interpolates the sharp corners on the curve with the Pythagorean-hodograph (PH) interpolation. This will minimize the geometric and interpolator approximation errors simultaneously. The algorithm consists of four different modules: a sharp corner detection module, a PH construction module, a feedrate planning module, and a dynamics module. Simulations are performed to show correctness of the proposed algorithm. Experiments on an X-Y table confirm that the developed method improves contour accuracy significantly compared to previously proposed adaptive-feedrate and curvature-feedrate algorithms.

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APA: Copy

MOETAKEF IMANI, B., & GHANDEHARIUN, A.. (2011). LOOK-AHEAD NURBS-PH INTERPOLATORS FOR HIGH SPEED CNC MILLING. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), 23(1 (5)), 83-95. SID. https://sid.ir/paper/196299/en

Vancouver: Copy

MOETAKEF IMANI B., GHANDEHARIUN A.. LOOK-AHEAD NURBS-PH INTERPOLATORS FOR HIGH SPEED CNC MILLING. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2011;23(1 (5)):83-95. Available from: https://sid.ir/paper/196299/en

IEEE: Copy

B. MOETAKEF IMANI, and A. GHANDEHARIUN, “LOOK-AHEAD NURBS-PH INTERPOLATORS FOR HIGH SPEED CNC MILLING,” JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), vol. 23, no. 1 (5), pp. 83–95, 2011, [Online]. Available: https://sid.ir/paper/196299/en

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