@article{(Open Science Index):https://publications.waset.org/pdf/12852, title = {Development of Machinable Ellipses by NURBS Curves}, author = {Yuan L. Lai and Jian H. Chen and Jui P. Hung}, country = {}, institution = {}, abstract = {Owning to the high-speed feed rate and ultra spindle speed have been used in modern machine tools, the tool-path generation plays a key role in the successful application of a High-Speed Machining (HSM) system. Because of its importance in both high-speed machining and tool-path generation, approximating a contour by NURBS format is a potential function in CAD/CAM/CNC systems. It is much more convenient to represent an ellipse by parametric form than to connect points laboriously determined in a CNC system. A new approximating method based on optimum processes and NURBS curves of any degree to the ellipses is presented in this study. Such operations can be the foundation of tool-radius compensation interpolator of NURBS curves in CNC system. All operating processes for a CAD tool is presented and demonstrated by practical models.}, journal = {International Journal of Mechanical and Mechatronics Engineering}, volume = {2}, number = {2}, year = {2008}, pages = {162 - 169}, ee = {https://publications.waset.org/pdf/12852}, url = {https://publications.waset.org/vol/14}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 14, 2008}, }