Multiple Criteria Optimization of Abrasive Water Jet Cutting Using Entropy-VIKOR Approach

The paper shows multiple performance optimisation of Hardox steel machining effects by the Abrasive Water Jet (AWJ). An innovative Entropy/VIKOR approach is implemented for the optimisation of parameters in cutting like pressure, feed rate, and abrasive flow rate over cutting depth, cut surface roughness, and angle of cut kerf was conducted. For determine the best set of the process control parameters VIKOR approach with entropy-based weights determining was done. To establish the weights of the initial parameters, it was proposed to calculate individual weights based on entropy. For the multiple criteria optimisation VIKOR approach was assumed.