Abstract
Influence of machining process parameters on the average surface roughness (Ra) and chip reduction coefficient (Z) was investigated and optimized during turning heat treated aluminium matrix composite (AMC) by multilayer TiN coated tungsten carbide inserts in dry environment. Analysis of Variance (ANOVA) revealed that feed was the only significant parameter; and the influence of spindle speed and depth of cut was insignificant both for Ra and Z. Linear regression models were developed for the responses; and their adequacy was verified. Morphology of chips formed during turning was also studied
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