Abstract:

A strategy for representing the concurrent oriented product model is proposed. Traditional representing methods must be improved under the new design idea and integrating mode. The representation of concurrent oriented product model is feature based. Design features and manufacturing features exist in a same model and are interrelated. Manufacturing features are recognized from Design Feature Based Model. Furthermore, once a model is constructed successfully, all the integrating work is completed and needs no transition. The product models’ representing scheme is also designed. A product model is a reasonable combination of the representation of the following aspects: boundary geometry (BRep), design feature, manufacturing feature and the relationship among design features and manufacturing features. Feature Relation Graph is designed to completely describe the relationship among design features and machining features. Furthermore, Double Data String Matrix is proposed to represent Feature Relation Graph perfectly. The models represented by the proposed method can meet both the needs of design and manufacture.

Key words: concurrent collaborative CAD/CAM integration, design feature, manufacture feature