Abstract
In this research investigation, input parameters—cutting speed (CS), feed rate (f) and depth of cut (doc)—were selected for process capability evaluation in milling process using CNC VMC. The process capability index of surface finish was calculated using two types of tools (titanium nitride coated carbide tool and solid carbide tool) during CNC milling operation of EN 19 alloy steel. The optimal process parametric setting was evaluated using single response optimization through Taguchi’s robust design. The single response optimization was done for process capability index so that manufactured component could not fall beyond the criteria set for surface finish by customer in case of using both tools. Confirmatory experiments were conducted finally to validate the results.
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