Knowledge Based Automatic Extraction of the Machinable Surfaces for Automatic CAD-CAM (Computer Aided Design-Computer Aided Manufacturing) System

摘要

The goal of this work is to automate the CAD-CAM system for turning operations. Considering that the manufacturing process cycle has five computational steps: (1) Computer Aided Parts Design; (2) Recognition and Extraction of Surfaces (CAD-CAM Link); (3) Computer-Automated Process Planning (CAPP); (4) Programming; and (5) Plan Execution, this paper describes how to use the knowledge-based system concept to model the second and third steps. For the machining operation in these steps the production rules for knowledge representation were used. The interpretation of the geometric model (B-REPS system) gives the machinable surfaces and its associated process. The integration of manufacturing processes leads the sequence from turning operations to process planning.