Rule Based Process Planning System for Hole Feature Machining

Traditional mechanical design and manufacturing methods are being replaced by computer aided systems that automate the process. However, existing computer aided process planners do not generate optimal process plans and lack modeling ability. A rule based expert system is proposed in this thesis to implement a process planning system which produces efficient process plans for holemaking. The process planning system should integrate well with a geometric modeler, so that designers can model parts with manufacturing features. The system should also be able to select proper tools from tool library and recommend machining data for machine operations. The system implemented is described, as well as rules that make efficient and accurate process plans and NC codes.