A Practical Approach to Generating Accurate NURBS Tool Paths for CNC Machining of Sculptured Surface Parts

Abstract:

This work proposes a practical approach to generating NURBS tool paths by accurately fitting ideal paths. A two-stage fitting process is included in this approach. Since NURBS paths can make accurate, smooth sculpture surfaces, this approach can promote the use of these paths in the manufacturing industry.

• Periodical: Materials Science Forum (Volumes 532-533)
• Pages: 500-503
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.532-533.500
• Online since: December 2006
• Authors: Ze Zhong Chevy Chen, Xu Jing Yang
• Keywords: CNC Machining, High Precision Machining, NURBS Curve Fitting, NURBS Tool Path, Sculptured Part Machining

References

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DOI: 10.1016/s0010-4485(00)00090-7

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20 40 60 80 100.

[40] [45] [50] [10] [15] [20] x (mm) y (mm) z (mm) Cutter locations Control points (a).

50 100 150 200.

[1] [2] [3] Number of Cutter locations Fitting error (×0. 001mm) Mean error = 0. 0013mm Maximum error = 0. 0027mm Number of cutter locations (b).