INTEGRATION OF MULTI CRITERIA DECISION MAKING TECHNIQUES FOR SELECTION OF NON- CONVENTIONAL MACHINING PROCESSES

Mechanical Engineering

The role of non-conventional machining processes (NCMPs) in today’s manufacturing environment has been well acknowledged. For effective utilization of the capabilities and advantages of different NCMPs, selection of the most appropriate NCMP for a given machining application requires consideration of different conflicting criteria. The right choice of the NCMP is critical to the success and competitiveness of the company. As the NCMP selection problem involves consideration of different conflicting criteria, of different relative importance, the multi-criteria decision making (MCDM) methods are very useful in systematically selection of the most appropriate NCMP. This paper presents the application of a recent MCDM method, i.e., the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method to solve NCMP selection which has been defined considering different performance criteria of four most widely used NCMPs. In order to determine the relative significance of considered quality criteria a pair-wise comparison matrix of the analytic hierarchy process (AHP) was used. The results obtained by the technique for order preference by similarity to ideal solution (TOPSIS) method which proves the applicability and potentiality of this MCDM method for solving complex NCMP selection problems. By the help of combining TOPSIS an AHP method which is based on comparison between various attributes and secondly based on fact that best alternative has least geometric distance from ideal solution and worst alternative has more geometric distance from an ideal solution. After applying combine approach among the available NCMP processes are AFM, AJM, EBM, EDM, USM and WJM.

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