Publication

Abstract : Selection of most apposite machining method is very crucial in precision machining of micro parts. Micro machining has wideapplications in the fabrication of micro-electro-mechanical systems (MEMS), micro- fluidics and precision surgical instruments.The machining processes for these diverse applications have to be selected based on different accuracy attributes combined withleast operating cost. So formulation of an appropriate selection methodology is very decisive. The aim of this paper is to developa methodology for machining process selection by comparing the various attributes. An integrated approach combining techniquefor order preference by similarity to ideal solution (TOPSIS) analytic hierarchy process (AHP) have been proposed. A casestudy has been presented to select from the major nontraditional machining processes for the purpose of micro drilling of fuelinjector nozzle hole of specific diameter ranges by comparing their various attributes. The research shows that the methodologyTOPSIS integrated with AHP is a very effective technique in selection of machining process based on applications byconsidering different attributes.