Investigation of Chip Formation and Surface Integrity when Micro-cutting cp-Titanium with Ultra-fine Grain Cemented Carbide

The microstructuring of component surfaces via micro-cutting processes (e.g. micro milling) are adequate techniques for tribological or medical applications. Compared to conventional cutting processes, size effects influencing the chip formation and as a consequence the surface integrity arise. Those are for instance the ploughing effect or the growing influence of the cutting edge with decreasing depth of cut. In this research, the chip formation of cp-Titanium when micro-cutting in an orthogonal micro-cutting process is investigated. Ultra-fine grain cemented carbide cutting tools were used in quick-stop tests. The results show the coherences between the chip formation and the surface integrity