Knowledge Based Group Technology (GT) Classification and Coding System for the Casting Industry-Methodology and its Application

Abstract

An expert group technology(GT) classification and coding system for casting industry could provide a better integration of CAD/CAPP/CAM systems and streamline the design, process planning and manufacturing operations. This paper describes a methodology and a set of supporting knowledge based tools which could assist in developing tailor-made group technology(GT) classification and coding systems to fit the specific needs of casting industry. The methodologies suggested, is based on analysis of the difficulties inherent to development of an expert classification and coding system for casting components. The knowledge based expert system tools are centred around a code structure database, which can accommodate the needs of different system users, and allow for system change and expansion. The difficulties in developing an expert classification and coding scheme for casting industry is also enumerated. This methodology and tools were already implemented to develop a GT system to support the process planning operation of a company.