Abstract
The examination of machinability in terms of surface roughness on duplex stainless steel under dry and wet machining conditions with a TiAlN coated solid carbide drill is presented in this paper. The experiments were carried out utilizing a CNCNC milling machine for drilling and a Taguchi design L8 set of orthogonal array(OA) for parametric optimization. Following the experimental optimization, it was discovered that dry machining produces a better surface quality than wet machining, with an R2 value of 0.990 for surface roughness. Finally, it was discovered that dry machining produces a superior surface finish than wet machining, and that the ideal process parameter for surface roughness (Ra) is a dry machining environment, a high spindle speed (900 RPM), and a low feed rate (0.03). After confirmation test were conducted for validation of experimental results and it was observed that experimental results and model results are close to each other.
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