Effect of severe plastic deformation during slot milling on wear resistance and surface characteristics of nimonic 263 alloy

Abstract

The slot milling process has a profound effect on surface characteristics such as residual stress and wear resistance, owing to the introduction of severe plastic deformation over the machined surface. Because the establishment of enormous pressure during machining operation leads to enhance its surface characteristics such as hardness and wear resistance through a significant increment in residual stress This study aims to analyze the impact of machining conditions such as spindle speed, table feed and depth of cut on the quantifiable contributions of the enhancement in surface characteristics such as microcrystalline characteristics and residual stress on the machined surface using XRD spectra analysis. Furthermore, it is found that the table feed has a great impact on the surface characteristics followed by the spindle speed and depth of cut. Additionally, it confirmed that the decrement is table feed leads to declines the augmentation of compressive residual stress drastically, while the depth of cut and spindle speed are kept constant.