ENERGY AND COST CONSCIOUS PROCESS ROUTING
Keywords:Energy, Cost, Process Routing, Metal cutting, Sustainable Manufacturing
This paper presents the research work involved in development of an energy and cost conscious process routing system. Proposed system is based on total energy consumed by machine tools and manufacturing cost occurred during the manufacturing.Overall system is structured in the form of six different modules including modules for machine tool selection, cutting tool selection, time and cost estimation, energy estimation, impact assessment and process routing generation. Each module is designed by acquisition of technical information from different sources including published literature, catalogues, and consultation with domain experts. Artificial intelligence (AI) technique, state space search method is used to search all possible process routes and grey relational analysis is used to fix optimised process route in terms of energy and cost.Further a case study of a horizontal machining centre is demonstrated for developing the energy estimation models. Methodology followed in the present work for deriving energy estimation models are useful for any metal cutting industry and it does not require costly instruments. The usefulness of proposed system is tested in one medium scale industry having large variety of component and batch quantity manufacturing. The proposed system is helpful in reducing energy wastage and it provides a base for implementing potential energy saving strategies for sustainable manufacturing.
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