Optimization of external grooving operations with the defect elimination approach in the selection of machining strategy and parameters

The machining process was affected by different factors. The proper adjusting of these parameters plays an important role especially in terms of workpiece quality. The grooving process is one of the most challenging operations in turning. This paper covers experimental tests in order to improve tool life in the grooving process. The optimization process was applied through adjusting cutting parameters (Vc(Cutting speed ), ap(Depth of cut), fn(Feed rate per revolution)) which were suitable to workpiece material and machining specification. Besides that, machining strategy regards to tool path improved by using multiple-grooving methods both for roughing and finishing process. Also, some hints were used to make machining conditions better like pre-machining of oxidization layer and changes in the cooling system. Performance results have shown that the chosen strategy for grooving and other preparation can prevent insert breakage and led to improved tool life.