Naseer Ahmed

TL;DR: In this article, an experimental study and computational (finite element) model of both CT and UAT forces acting on the cutting tool in UAT are studied, and their dependence on vibration amplitude, frequency and vibration direction as well as on cutting parameters, such as feed rate and cutting speed, are investigated.

TL;DR: In this article, the analysis of the surface layer formed on a workpiece treated with ultrasonically assisted turning (UAT) in comparison to conventional turning (CT) was performed.

TL;DR: In this paper, the authors further developed the finite element (FE) model of ultrasonically assisted turning discussed in Mitrofanov et al. This model is used to study the effect of cutting parameters (such as the cutting speed, depth of cut and feed rate) and influence of lubrication on various features of two turning techniques, including cutting forces and chip shapes.

TL;DR: The findings are helpful in characterization of functional abnormalities and may facilitate the understanding of molecular mechanisms and biological function of S-nitrosylation in AD pathology.

TL;DR: Mitrofanov et al. as mentioned in this paper presented a recently developed 3D model of UAT as an extension to their initial 2D model, which allows studying various 3D effects in turning, such as oblique chip formation, as well as to analyse the influence of tool geometry on process parameters, e.g. cutting forces and stresses generated in the workpiece material.