The Geometry and Generation of NC Tool Paths

[+] Author and Article Information
R. Sarma, D. Dutta

Department of Mechanical Engineering, The University of Michigan, Ann Arbor, Michigan 48109

J. Mech. Des 119(2), 253-258 (Jun 01, 1997) (6 pages) doi:10.1115/1.2826244 History: Received August 01, 1995; Revised February 01, 1997; Online December 11, 2007


Numerically controlled milling is the primary method for generating complex die surfaces. These complex surfaces are generated by a milling cutter which removes material as it traces out pre-specified tool paths. The accuracy of tool paths directly affects the accuracy of the manufactured surface. The geometry and spacing of the tool paths impact the scallop height and time of manufacturing respectively. In this paper we propose a new method for generating NC tool paths. This method gives the part programmer direct control over the scallop height of the manufactured surface. The method also provides options to the part programmer for generating a variety of tool paths based on practical metrics such as tool path length, tool path curvature and number of tool retractions.

Copyright © 1997 by The American Society of Mechanical Engineers
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