The paper presents a comparative study of linear and parametric interpolators used for command generation during CNC machining. For many decades, linear interpolators have been used in NC machines for command generation. Recently, a parametric interpolator has been developed that is designed for com
The speed-controlled interpolator for machining parametric curves
โ Scribed by S.-S. Yeh; P.-L. Hsu
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 242 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0010-4485
No coin nor oath required. For personal study only.
โฆ Synopsis
Modern CNC systems are designed with the function of machining arbitrary parametric curves to save massive data communication between CAD/CAM and CNC systems and improve their machining quality. Although available CNC interpolators for parametric curves generally achieve contouring position accuracy, the specified feedrate, which dominates the quality of the machining processes, is not guaranteed during motion. Recently, some approximation results concerning motion speed have been reported [Shpitalni M,
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## Abstract A method is presented for controlling the convexity of interpolant curves based on a rational cubic interpolating function with quadratic denominator. The key idea is that the uniqueness of the interpolating function for the given data is replaced by the uniqueness of the interpolating