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Tool path generation for machining free-form pockets using Voronoi diagrams

  • J. Jeong
  • K. Kim
Article

Abstract

Voronoi diagrams for closed shapes have many practical applications, ranging from numerical control machining to mesh generation. Curve offsetting based on Voronoi diagrams avoids the topological problems encountered in the traditional offsetting algorithms. In this paper, we propose a procedure using Voronoi diagram-based tool-path generation for machining pockets with free-form boundaries. A pocket can be bounded by 2D free-form curve elements that are differentiable twice. The procedure consists of three steps:
  1. 1.

    Segmentation of a free-form pocket boundary.

     
  2. 2.

    Construction of the Voronoi diagram for the pocket boundary.

     
  3. 3.

    Generation of the tool path for machining the pocket using the Voronoi diagram.

     

Keywords

Bezier curve Contour machining Pocket machining Voronoi diagram 

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Copyright information

© Springer-Verlag London Limited 1998

Authors and Affiliations

  1. 1.Industrial Engineering DepartmentPohang University of Science and TechnologyPohangSouth Korea

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