Abstract
Since a manufacturing feature, in computer aided process planning (CAPP), is the medium of information communication in the data sharing between design and manufacturing, i.e. CAD and CAM, it has an important role to complete optimum process planning in its correct capture and communication capability. For the purpose of improving this communication, an approach of using a feature dependency of manufacturing feature based on a base plane was proposed and verified for smooth integration between CAD, CAPP and CAM in the previous paper. According to successive trial and usage by real machining parts in some industries, it becomes clear that a certain feature such as a chamfer element causes effects of annoyance for other feature recognition, and multiple feature definition for a single feature is required under interactions by the others. To solve these requirements for applying more sophisticated parts, filtering method for undesired features to complete correct feature recognition and multiple feature definitions for features in interactions are proposed in this paper. Finally the representation schema of feature dependency including these results is proposed, and the approach is verified by a developed prototype SCAPP system.
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