Efficient milling part geometry computation via three-step update of frame-sliced voxel representation workpiece model

Efficient milling part geometry computation via three-step update of frame-sliced voxel... This paper presents an efficient method of computing machined part geometry in general multi-axis milling. The method is based on the frame-sliced voxel representation of the workpiece geometry and involves a three-step update process. Virtual prototyping of the machined part geometry is useful for tool path verification and demands fast computations for quick feedback. The frame-sliced voxel representation (FSV-rep) model retains the advantages of efficiency and robustness of voxel modeling in model update along with the accuracy and boundary representation quality comparable to that of triangle meshing. The multi-level FSV-rep model allows a three-step update process of the model, which enables batch processing of the voxels and minimal intersection calculations to achieve fast and accurate modeling results. In a series of test cases, the FSV-rep-based computation has shown up to 3.3 times faster performance compared to that of the existing tri-dexel-based method with similar modeling accuracy. The better performance of the present method is attributed to the bulk workpiece volume to be removed and the complex multi-axis motions of the cutting tool with tilted orientations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The International Journal of Advanced Manufacturing Technology Springer Journals

Efficient milling part geometry computation via three-step update of frame-sliced voxel representation workpiece model

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Publisher
Springer London
Copyright
Copyright © 2017 by Springer-Verlag London
Subject
Engineering; Industrial and Production Engineering; Media Management; Mechanical Engineering; Computer-Aided Engineering (CAD, CAE) and Design
ISSN
0268-3768
eISSN
1433-3015
D.O.I.
10.1007/s00170-017-0168-6
Publisher site
See Article on Publisher Site

Abstract

This paper presents an efficient method of computing machined part geometry in general multi-axis milling. The method is based on the frame-sliced voxel representation of the workpiece geometry and involves a three-step update process. Virtual prototyping of the machined part geometry is useful for tool path verification and demands fast computations for quick feedback. The frame-sliced voxel representation (FSV-rep) model retains the advantages of efficiency and robustness of voxel modeling in model update along with the accuracy and boundary representation quality comparable to that of triangle meshing. The multi-level FSV-rep model allows a three-step update process of the model, which enables batch processing of the voxels and minimal intersection calculations to achieve fast and accurate modeling results. In a series of test cases, the FSV-rep-based computation has shown up to 3.3 times faster performance compared to that of the existing tri-dexel-based method with similar modeling accuracy. The better performance of the present method is attributed to the bulk workpiece volume to be removed and the complex multi-axis motions of the cutting tool with tilted orientations.

Journal

The International Journal of Advanced Manufacturing TechnologySpringer Journals

Published: Apr 1, 2017

References

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