NURBS Curve Design and CNC Machining Principle

Bao Ying Peng; Qiu Shi Han

doi:10.4028/www.scientific.net/AMM.141.392

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 141NURBS Curve Design and CNC Machining Principle

NURBS Curve Design and CNC Machining Principle

Abstract:

Used fixed equal step cubic spline interpolation in non-circular machining, the influence of acceleration may be too strong to cause burns and vibration. To suppress the acceleration influence of feed axis, take cam grinding as an illustration, first derived acceleration and its change from the cubic spline function, then adopting the method of off-line fuzzy model logical reasoning combined with five points of three power smooth, obtained the modified variable interpolation time steps. The experiment results that the feed axis acceleration stability used fuzzy step cubic spline interpolations is much better than equal step spline in cam grinding under the same processing efficiency.

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Periodical:

Applied Mechanics and Materials (Volume 141)

Pages:

392-396

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.141.392

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Online since:

November 2011

Authors:

Bao Ying Peng, Qiu Shi Han

Keywords:

Non-Uniform Rational B-Spline (NURBS), Spline Design, Spline Machining

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