Intersection Cylindrical Feature Recognition Algorithm for Counterbore and Countersink Geometry Application

This paper proposed an algorithm to recognize intersection cylindrical feature, especially counterbore and countersink geometry. The proposed algorithm analyzes 3D solid drawing in term STEP format to find intersection cylindrical feature based on a specific properties of counterbore and countersink geometry. The proposed algorithms was verified experimentally by implementing to holes inspector (HECTOR) software. A 3D product model with five different hole was designed to validate the proposed algorithm. according to the experiment result, counterbore and countersink on the 3D specimen product is properly recognized by the proposed algorithm.