This paper presents a novel approach for generating efficient tool paths in machining free-form surfaces. Concept of iso-phote is used to facilitate tool-path generation. An iso-phote is defined as a region on a surface where the normal vector does not differ by more than a prescribed angle from a fixed reference vector. The boundary curves of the iso-phote, called iso-inclination curves, are numerically generated and are served as the initial master tool paths. These iso-inclination curves are then projected to a 2D plane which is perpendicular to the fixed reference vector. 2D curve offsetting of the projected iso-inclination curve is then performed. The resulted 2D offset curves are projected back to 3D surface to form final tool paths. The resulted tool paths can guarantee the satisfaction of machining tolerance requirements. A comparison study of this iso-phote based machining with the conventional iso-parametric machining and the iso-planar machining shows favorite result for the new approach.
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November 1999
Research Papers
Iso-phote Based Tool-path Generation for Machining Free-form Surfaces
Zhonglin Han,
Zhonglin Han
CAD/CAM Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA 90095
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Daniel C. H. Yang
Daniel C. H. Yang
CAD/CAM Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA 90095
Search for other works by this author on:
Zhonglin Han
CAD/CAM Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA 90095
Daniel C. H. Yang
CAD/CAM Laboratory, Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, Los Angeles, CA 90095
J. Manuf. Sci. Eng. Nov 1999, 121(4): 656-664 (9 pages)
Published Online: November 1, 1999
Article history
Received:
July 1, 1997
Revised:
July 1, 1998
Online:
January 17, 2008
Citation
Han, Z., and Yang, D. C. H. (November 1, 1999). "Iso-phote Based Tool-path Generation for Machining Free-form Surfaces." ASME. J. Manuf. Sci. Eng. November 1999; 121(4): 656–664. https://doi.org/10.1115/1.2833094
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