An efficient methodology for slicing NURBS surfaces using multi-step methods

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Abstract

Slicing the geometric models has been a crucial computational task for various manufacturing processes in which significant academic research has been dedicated for its efficiency, accuracy, and generalizability. Meanwhile, the feasibility of direct slicing of the modeled geometric surfaces needs more investigation due to the demands for precise geometrical information in applications such as multi-axis machining, layer-based manufacturing and 3D printing, coordinate metrology, and robotics. The purpose of this study is to introduce a method to find the best patches of a non-uniform rational B-spline (NURBS) surface for a direct slicing procedure. Formulating the relation between the spatial coordinates on the surface and the surface parameters is created by a parameterization process. Adams–Bashforth multi-step method is used in this methodology to calculate the most accurate series of the slicing parameters. This paper provides the conception, implementation, and verification of the developed methodology. The resulting solution is very practical and beneficial for direct slicing of CAD models in additive manufacturing systems.

Keywords

NURBS surface Additive manufacturing Slicing Multi-step methods Adams–Bashforth 

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Notes

Acknowledgements

The authors would like to thank the Natural Sciences and Engineering Research Council (NSERC) of Canada for partial funding of this research work.

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Copyright information

© Springer-Verlag London Ltd. 2017

Authors and Affiliations

  1. 1.Faculty of Engineering and Applied ScienceUniversity of Ontario Institute of Technology (UOIT)OshawaCanada

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