Merging and smoothing machining boundaries on cutter location surfaces

Authors:
Weishi Li;Ralph R. Martin;Frank C. Langbein
Affiliations:
Hefei University of Technology, China;Cardiff University, Wales, UK;Cardiff University, Wales, UK
Venue:
Proceedings of the 14th ACM Symposium on Solid and Physical Modeling
Year:
2010

Citing 6
Cited 0

Robust epsilon visibility

Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Morphological Image Analysis: Principles and Applications

Morphological Image Analysis: Principles and Applications
Energy-minimizing splines in manifolds

ACM SIGGRAPH 2004 Papers
Fairing point sets using curvature

Computer-Aided Design
A cutting-tool-dependent approach for partitioning of sculptured surface

Computer-Aided Design
Material side tracing and curve refinement for pencil-cut machining of complex polyhedral models

Computer-Aided Design

Quantified Score

Hi-index	0.00

Visualization

Abstract

In region machining, neighbouring regions may be close together, but disconnected. Boundary curves may also have unwanted geometric artifacts caused by approximation and discretisation. We present a strategy to improve the topology and geometry of such boundary curves, allowing the generation of better tool paths, and in turn, improved tool wear and surface quality of the machined part. We make such improvements in three steps: firstly, disconnected regions are merged where appropriate, using a method based on morphological operations from image processing. Secondly, boundary segments with undesirable geometric properties are identified and replaced by simpler segments, using a vertex deletion operation. Finally, flaws at a smaller geometric scale are removed, using a curve shortening algorithm. Experimental results are given to illustrate our algorithm.