en فرایندهای تولید و سیستم ها Manufacturing Process & Systems پژوهشي Research <em>In the Wire EDM of oil hardening die steel materials is a complicated machining process. Hence to find out the best set of process parameters is an important step in wire EDM process. Multi-response optimization of machining parameters was done by using analysis called desirability function analysis coupled with the dimensional analysis approach. In the present work, based on Taguchi&rsquo;s L₂₇ orthogonal array, number experiments were conducted for OHNS material. The WEDM process parameters such as, pulse on time , pulse off time, input current, wire feed rate and the servo voltage are optimized by multi-response considerations such as material removal rate and surface roughness. Based on desirability analysis, the most favorable levels of parameters have been known. The significant contribution of parameters is determined by dimensional analysis. </em><em>The experimental results show that the results obtain by using DA approach has a good agreement with the measured responses. The correlation up to &nbsp;99% has been achieved between the developed model and the measured responses by using dimensional analysis approach.&nbsp;</em><br> <em>In the Wire EDM of oil hardening die steel materials is a complicated machining process. Hence to find out the best set of process parameters is an important step in the wire EDM process. Multi-response optimization of machining parameters was done by using analysis called desirability function analysis coupled with the dimensional analysis approach. In the present work, based on Taguchi&rsquo;s L₂₇ orthogonal array, number experiments were conducted for OHNS material. The WEDM process parameters such as pulse on time, pulse off time, input current, wire feed rate, and the servo voltage are optimized by multi-response considerations such as material removal rate and surface roughness. Based on desirability analysis, the most favorable levels of parameters have been known. The significant contribution of parameters is determined by dimensional analysis. </em><em>The experimental results show that the results obtain by using DA approach has a good agreement with the measured responses. The correlation up to &nbsp;99% has been achieved between the developed model and the measured responses by using dimensional analysis approach.&nbsp;</em> Desirability function, Dimensional analysis, Multirespone Optimization OHNS Die Steel. 11 23 http://ijiepr.iust.ac.ir/browse.php?a_code=A-10-971-1&slc_lang=en&sid=1 Mangesh Phate mangeshphate03@gmail.com 180031947532846005595 180031947532846005595 Yes All India Shri Shivaji Memorial Society’s College of Engineering , Pune, Maharashtra,India -411001 Shraddha Toney toneyshraddha@gmail.com 180031947532846005596 180031947532846005596 No Sinhgad Institute of Technology & Science , Pune, Maharashtra, India -411041 Vikas Phate vikas.phate13@gmail.com 180031947532846005597 180031947532846005597 No Government Polytechnic, Murtizapur, Maharashtra, India -444107