An AAG Based Method of Machining Feature Recognition

The recognition of machining features is the key technology in the integration of CAD/CAPP/CAM. How to decompose the interacted zone into different features is the core issue of the recognition of machining features. This paper extends the attributed adjacency graph(AAG) of the part with the connection of assistant face and extended face. We can get the exact type of the feature by matching the sub-graph divided from the NAAG. We also introduced united machining feature (UMF) to make the reasoning more reasonable.