Abstract
In this paper, we address the problem of optimizing the tool path plan for patchby-patch machining of parts having multiple surface patches. The tool path plan defines the sequence in which the patches are to be machined and the entry and exit points for the cutting-tool within each patch. Curent CAD/CAM systems require the user to select the tool path plan. When the number of surface patches increases and alternative machining strategies need to be evaluated, it is often difficult for the user to select the optimal tool path plan that minimizes the total time to machine the part. In this paper, we address three cases of this optimization problem, and present models that can be used to incorporate tool path plan evaluation and optimization capabilities in CAD/CAM systems.
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