J. Satheesh , Tajamul Pasha, Harish , T. Madhusudhan
Metal matrix composite (MMC) is an advanced engineering material possessing numerous favourable characteristics like light weight, high strength, high stiffness , ability to be operated at elevated temperatures etc. However, it is very difficult to machine these materials as they contain very hard abrasive ceramic as a dispersed phase in a ductile material matrix phase. Our study aims at casting of AlSiC composite rods with 25% w/w SiC as a composition. The study employs CNC turning operation and Taguchi's L8 orthogonal array is used for experimental design. An attempt is made to optimise the effects of the three parameters viz. Cutting Velocity, Feed Rate and Depth of Cut on the Surface Roughness values (Ra and Rz). Analysis of Variance (ANOVA) has been performed to know the effects of these three factors on the responses using statistical software MINTAB 16.
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