Application of WASPAS Method for Determining Best Process Factors in External Grinding

This paper describes the results of a study on multi-criteria decision-making (MCDM) in cylindrical external grinding SKD11 tool steel to identify the best input process parameters for dressing process in external grinding in order to achieve minimal roundness (R) and maximum wheel life (T) at the same time. To accomplish this, the MCDM problem was solved using the WASPAS (Weighted Aggregates Sum Product Assessment) method, and the weights of criteria were calculated using the Entropy method. In addition, an experiment was conducted with six input process factors: fine dressing depth, fine dressing passes, coarse dressing depth, coarse dressing passes, non-feeding dressing, and dressing feed rate. The Taguchi method and an L16 orthogonal array were also used to design the experiment. The experimental output results were measured and fed into the MCDM problem, including the roundness and wheel life. The best dressing mode for external cylindrical grinding has been proposed based on the findings of this study.