Changing worn tools is a major concern in planning operations on machining systems. Strategies for replacing tools range from changing each tool as it reaches its projected tool life, to changing all tools when the tool with the shortest life on the machining system is expended. Intermediate strategies involve changing tools in groups. Each of these strategies has two cost components associated with it: (1) the cost of lost production due to machine tool stoppage, and (2) the cost of unused tool life. The best tool grouping strategy minimizes the combined cost of lost production. In this paper we present an approach for finding good tool grouping strategies from inputs that include the tool utilization for a given machining application, and the tooling and machining system costs. A genetic algorithm is used as the underlying optimization paradigm for finding the minimum cost strategy. An example is presented for a part produced on a machining center. [S1087-1357(00)00303-8]
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e-mail: yiphoi@engin.umich.edu
e-mail: dutta@engin.umich.edu
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August 2000
Technical Papers
Finding Minimum Cost Tool Grouping Schemes on Machining Systems
Derek Yip-Hoi,
e-mail: yiphoi@engin.umich.edu
Derek Yip-Hoi
CAD/CAM Group, Design Laboratory, Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, MI 48109-2125
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Debasish Dutta
e-mail: dutta@engin.umich.edu
Debasish Dutta
CAD/CAM Group, Design Laboratory, Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, MI 48109-2125
Search for other works by this author on:
Derek Yip-Hoi
CAD/CAM Group, Design Laboratory, Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, MI 48109-2125
e-mail: yiphoi@engin.umich.edu
Debasish Dutta
CAD/CAM Group, Design Laboratory, Department of Mechanical Engineering and Applied Mechanics, University of Michigan, Ann Arbor, MI 48109-2125
e-mail: dutta@engin.umich.edu
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received July 1997; revised May 1999. Associate Technical Editor: J. Sutherland.
J. Manuf. Sci. Eng. Aug 2000, 122(3): 543-548 (6 pages)
Published Online: May 1, 1999
Article history
Received:
July 1, 1997
Revised:
May 1, 1999
Citation
Yip-Hoi, D., and Dutta, D. (May 1, 1999). "Finding Minimum Cost Tool Grouping Schemes on Machining Systems ." ASME. J. Manuf. Sci. Eng. August 2000; 122(3): 543–548. https://doi.org/10.1115/1.1286086
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