Control of Chip Flow Direction in High-Pressure Water Jet-Assisted Orthogonal Tube Turning

This paper shows the possibility of controlling the chip side-flow direction in water jet-assisted turning using flat-faced inserts without any chip formers. The experiments were performed under orthogonal cutting conditions of an end of a pipe with plain water jet assistance with a pressure up to 80 MPa and a flow up to 81/min. The jet was directed perpendicular to the cutting edge into the tool/chip interface. Experimental results show that the chip side-curl radius can be successfully controlled. A correlation between the jet momentum, jet diameter and side-curl radius is presented and widely discussed.