Application of desirability analysis for optimizing the micro wire electrical discharge machining (μWEDM) parameters

摘要

Close tolerance and precision requirements of biomedical components and miniaturization of sensors has given micro wire electrical discharge machining (μWEDM) a substantial amount of research attention. The process parameters like gap voltage, capacitance, wire feed rate and wire tension play an important role in influencing the quality characteristics of the machined parts. The challenge lies in selecting the optimal machining parameter combination to achieve the desired surface finish and metal removal rate in a multi input multi output process like μWEDM. The process parameters were varied at three levels and Taguchi's L9 orthogonal array was used to design and conduct the experiments. Desirability analysis was applied for predicting the optimal setting of machining parameters and ANOVA results had revealed the significant role of wire feed rate and gap voltage in affecting the quality characteristics of the process