Infrared brazing of Ti–6Al–4V using two silver-based alloys is evaluated in the study. For the 72Ag–28Cu brazed specimen, Ag-rich matrix, eutectic Ag–Cu and Cu–Ti interfacial reaction layer(s) are observed in the experiment. In contrast, both Ag-rich matr

In this paper, computational modelling of 3D turning process in the presence of variable design cutting tool inserts is studied. Turning of alloy steel, AISI 4340, which utilized in high strength mechanical components for automotive and aerospace industry steel with uniform and variable edge design Polycrystalline cubic Boron Nitride (PcBN) inserts is performed. In the experiments chip geometry, forces and tool wear are measured. 3D computational modelling is utilized to predict chip formation, forces, stresses, temperatures and tool wear on uniform and variable edge design tools. Influence of variable edge tooling on resultant pressure-dependent friction has been investigated by utilizing 3D process simulations. Predicted forces are compared with experiments until pressure-dependent shear friction factor is solved. In general, a lower friction concentration is found for variable edge tooling. The temperature and stress distributions and tool wear contours reveal the advantages of variable edge micro-geometry design.