Effects of tool paths and machining parameters on the performance in micro-milling of Ti6Al4V titanium with high-speed spindle attachment

The objective of the current work was to investigate the influence of tool path and micro-milling conditions on wear, surface roughness, and forces when micro-milling Ti6Al4V titanium material. The performances of raster (zigzag) and single-direction raster (zig) tool paths were evaluated. The micro-milling experiments were carried out by employing high-speed spindle attachment connected to main spindle of standard machine tool under various tool paths. The experimental studies consisted of two stages. In the first stage, the effect of spindle speed by employing high-speed spindle attachment was examined under various tool paths at low and high feed rates. In the second stage, the effect of feed rate on machining performance was investigated under various tool paths. Based on this study, the optimum cutting conditions could be determined when using high-speed spindle attachment under various tool paths.