OPTIMIZATION OF MQL PARAMETERS USING THE TAGUCHI METHOD IN MILLING OF WASPALOY

Authors : Çağrı Vakkas YILDIRIM, Turgay KIVAK, Fehmi ERZİNCANLI, İlyas UYGUR, Murat SARIKAYA

Pages : 173-186

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Publication Date : 2017-06-19

Article Type : Other Papers

Abstract :This study aimed to investigate the effect of the minimum quantity lubrication insert ignore into journalissuearticles values(MQL); parameters such as cutting oil type, flow rate, milling method, pulverization distance and nozzle type on average roughness insert ignore into journalissuearticles values(Ra); in milling of nickel based Waspaloy super alloy. During milling experiments, constant cutting speed insert ignore into journalissuearticles values(45 m/min);, constant feed rate insert ignore into journalissuearticles values(0.1 mm/rev); and constant depth of cut insert ignore into journalissuearticles values(0.5 mm); selected were as machining parameters. Four different types of oil insert ignore into journalissuearticles values(vegetable, synthetic, mineral and mineral-synthetic);, four different flow rates insert ignore into journalissuearticles values(25, 50, 75 and 100 ml/h);, two different milling methods insert ignore into journalissuearticles values(down milling and up milling); two pulverization distances insert ignore into journalissuearticles values(25 and 50 mm); and two different nozzle types were selected as MQL parameters. The results were analyzed using 3D surface graphs, signal-to-noise ratio insert ignore into journalissuearticles values(S/N); and main effect graphs of means. Optimal operating parameters were determined using the S/N ratio and desirability function analysis. Mathematical models have been created for surface roughness. The analysis results indicated that the feed rate was the dominant factors oil type and flow ratio on surface roughness.  In addition, confirmation test results showed that the Taguchi method was very successful in the optimization of MQL parameters in order to obtain minimum surface roughness in milling of Waspaloy super alloy.
Keywords : Waspaloy, Milling, MQL, Surface Roughness, Optimization