Feature-based machining precedence reasoning for prismatic parts in CNC process planning

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Proceedings titleIntelligent Manufacturing
Series titleThe proceedings of FAIM 2004 14th international conference on flexible automation and intellegent manufacturing
ConferenceInternational Conference on Flexible Automation and Intelligent Manufacturing, July 12-14, 2004, Toronto, Canada
AbstractPrecedence relations are crucial to operation sequence planning, and must be satisfied in determining an operation sequence. Most of the previous research work has focused on how to optimize operation sequence and assume that the precedence relations are given as input, or specified interactively by the users. However, to obtain precedence relations, especially to automatically generate precedence relations using knowledge of feature interactions imposes an interesting challenge for Computer Aided Process Planning (CAPP). This paper presents a definition for feature accessibility and a method to obtain its geometric precedence relations using the updated feature iMaginary face-Real face (M-R face) dependency and the accessibility of the cutting tool to the feature. This method allows the dynamic generation of geometric precedence relations based on the setup direction, updated topologies and interactions between the features. The geometric precedence relations could be influenced by the reference precedence form tolerance specifications and the machining expertise precedence relation input from matching experts. The precedence-reasoning module is currently being implemented within a CNC computer-aided process planning system for prismatic parts.
PublisherNational Research Council Canada. Research Press
AffiliationNRC Industrial Materials Institute; National Research Council Canada
Peer reviewedYes
NPARC number21272552
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Record identifier22f4811f-de34-4e44-8dc8-65a055e2864e
Record created2014-12-02
Record modified2016-10-04
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