Abstract: To realize the effective integration of CAD,CAPP,and CAM system,we present a manufacturability driven interacting machining feature recognition method for 3D CAD models.Firstly,the accessibility cone for each machining face is computed based on heuristic rules.Machining region subgraphs are then constructed by machining face clustering method considering manufacturing semantics.With the dimension semantic information,interacting machining features are finally recognized based on the machining region subgraph that is used as a feature hint.The approach proposed is implemented and tested by hundreds of mechanical parts.Preliminary results show that the method can effectively realize machining feature recognition for complex interacting machining features and complex parts,and the efficiency can meet the requirement of engineering application.