0
Research Papers

Recognition of Freeform Surface Machining Features

[+] Author and Article Information
Jun Wang

Department of Mechanical and Aeronautical Engineering, University of California, Davis, CA 95616davis.wjun@gmail.com

Zhigang Wang

Department of Mechanical and Aeronautical Engineering, University of California, Davis, CA 95616zgwang@ucdavis.edu

Weidong Zhu

Department of Mechanical and Aeronautical Engineering, University of California, Davis, CA 95616wdzhu@ucdavis.edu

Yingfeng Ji

Department of Mechanical Engineering, University of Wisconsin, Milwaukee, WI 53211yfj@uwm.edu

J. Comput. Inf. Sci. Eng 10(4), 041006 (Dec 17, 2010) (7 pages) doi:10.1115/1.3527075 History: Received April 29, 2009; Revised June 28, 2010; Published December 17, 2010; Online December 17, 2010

This paper describes a method of machining feature recognition from a freeform surface based on the relationship between unique machining patches and critical points on a component’s surface. The method uses Morse theory to extract critical surface points by defining a scalar function on the freeform surface. Features are defined by region growing between the critical points using a tool path generation algorithm. Several examples demonstrate the efficiency of this approach. The recognized machining features can be directly utilized in a variety of downstream computer aided design/computer aided manufacturing (CAM) applications, such as the automated machining process planning.

FIGURES IN THIS ARTICLE
<>
Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Freeform surface recognition: (a) freeform surface, (b) isoplanar tool path generation without recognition, (c) iso-scallop height tool path generation without recognition, and (d) tool path generation after recognition

Grahic Jump Location
Figure 2

Flowchart of segmentation algorithm

Grahic Jump Location
Figure 3

The link of vertex

Grahic Jump Location
Figure 4

Critical point extraction with different Morse functions: (a) mean curvature function, (b) least-squares projection function, (c) geodesic distance function, and (d) height function

Grahic Jump Location
Figure 5

Region growing with (a) isoplanar method, (b) iso-scallop height method, and (c) iso-pick feed method

Grahic Jump Location
Figure 6

Freefrom surface recognition: (a) freeform surface, (b) critical point extraction, (c) region growing starting from a maximal point, (d) region growing from another maximal point, (e) region growing from a minimal point, and (f) recognized machining patches and their tool path

Grahic Jump Location
Figure 7

Freeform surface recognition: (a) freeform surface, (b) critical point extraction, (c) iso-scallop height based segmentation, and (d) isoplanar based segmentation

Grahic Jump Location
Figure 8

Freeform surface recognition and machining: (a) freeform surface of 3D industrial model, (b) recognized machining patches, (c) iso-pick feed tool path generation, (d) CAD industrial model, and (e) surface machining comparison between ESPRIT Modular CAM processor and this proposed algorithm

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In