Multi- Criteria Optimization of PMEDM Process Parameters for MRR, SR and TWR Using TOPSIS Method

Multi-objective optimization in PMEDM remains a very complex problem, so it continues to cause the attention of many research. In this paper, the authors presented the results of each specific optimization and simultaneous 4 quality characteristics of electrical discharge machining using titanium powder mixed in the dielectric fluid (PMEDM). The methods is used to optimize the Taguchi method and TOPSIS. The process parameters are used to investigates: workpiece material, tool material, polarity, pulse-on time, intensity of discharge, pulse-off time, powder concentration. This approach proved successful method for improving the processing efficiency of the study subjects.