Attribute Adjacency Matrix Approach for Extracting and Recognizing Manufacturing Prismatic Features from CAD Models

This paper introduces Developed Attributes Adjacency Matrix (DAAM)approach for extracting and recognizing of part’s features, by deal with decouplingor isolated manufacturing features. The proposed algorithm consists of two stages,pre-processor stage which perform extraction of information from DesignExchange Format (DXF) file format in Computer Aided Design (CAD), and postprocessorstage which recognizes part’s features depending on attributesadjacency matrix.The main contributions of this research include building the adjacent relationsbetween faces of the part by geometrical characteristics in form of matrix, and useclustering operation to extract the exact faces of feature and use different classesof geometrical characteristics to assisting to recognize depression prismaticfeatures useful in machining and other application such as dimensional inspectionand assembly.