Fuzzy AHP decision making method for insert grade selection

Recent developments in cutting tool materials of CNC maching have brought many exciting changes in the field of metal cutting . Machine operators can benefit from wider selection of insert grade in cutting process. On the other hand, selecting the optium insert grade from its increasing number of existing alternatives in workshop is multiple-criteria decision making (MCDM) problem in the presence of many quantitative and qualitative attributes. Therefore,in this paper, a fuzzy AHP (analytic hierarchy process) is used for machine tool selection problem. Due to the crisp pairwise comparison in the conventional AHP seems to be imprecise to capture the right judgments on vagueness and uncertainty machine tool selection decision-maker, fuzzy logic is introduced in the pairwise comparison of AHP to improve this conventional AHP deficiency. Finally a selected optium grade coincides with practical application in workshop.