Electrode Selection for Wire-Cut Electrical Discharge Machining Process

The electrode is a very important component of the wire-cut electrical discharge machining (WEDM) process. The selection of electrodes will greatly influence both economic and technical indicators of the machining process. This study was conducted to select the best electrode among six available types. To choose the best option among available options, ranking the options is necessary. Four different methods were used to rank the options including the TOPSIS method, the PIV method, the COCOSO method, and the CURLI method. Six criteria were used to describe each electrode type including wire diameter, breaking load, maximum tension, elongation, conductivity, and price. The MEREC method was used to calculate the weights for the criteria. Although the ranking of electrode types were performed by using four different methods (TOPSIS, PIV, COCOSO, and CURLI), in all four cases, the same good electrode was identified.