Modelling and Analysis of Surface Evolution on Turning of Hard-to-Cut CLARM 30NiCrMoV14 Steel Alloy

Industrial practitioners are working on predictive solutions for the precise evaluation of input parameters and processed surfaces engineering materials. To aid aeronautical industry, this study is an effort to develop mathematical modelling comprehensive surface analysis finish after dry machining CLARM HBR, a steel alloy with attractive mechanical properties wide applications in large caliber gun barrels high-pressure vessels. Feed rate, rotational speed, depth cut were taken as quantitative parameters, whereas time was considered categorical factor classification three levels. Response methodology (RSM) central component design has been used constitution experimental design, modelling, developed models. Eighteen samples prepared perform experimentation development prediction The adequacy models verified using variance (ANOVA), validated confirmatory trial experiments, which revealed results agreeing predictions. feed rate most significant parameter achieving desired finish. An increase speed at low resulted very fine texture, though it deteriorated higher rates. superior quality obtained 0.137 ?m parametric settings 0.19 mm/rev feed, 90 rpm 3 mm cut, 4 min time. Overall, values roughness frecorded third level process variable empirical expected manufacturers concerning different before experimentations.