Control of chip flow direction in high-pressure water jet-assisted orthogonal tube turning

Abstract

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.

Influences of cutting fluid conditions and cutting parameters on surface integrity of Inconel 718 under high‐pressure jet–assisted machining (HPJAM)

“…This can be attributed to the fact that at lower cutting speeds, the chip velocity will be lower, which results in deterioration of the machined surface. This explanation can be referred to the practical results of Courbon et al, Crafoord et al, and Kaminski et al 12,25,26 The above results indicate that HPJAM is governed by 2 types of effects, the cooling effect and the mechanical jet effect. Optimisation of fluid and cutting parameters is essential for achieving the desired results.…”

“…This can be attributed to the fact that at lower cutting speeds, the chip velocity will be lower, which results in deterioration of the machined surface. This explanation can be referred to the practical results of Courbon et al, Crafoord et al, and Kaminski et al…”

High performance cutting of advanced aerospace alloys and composite materials

“…This leads to a reduced tool-chip contact zone by up to 50% in comparison to conventional flood cooling [44]. The lubricoolant supply pressure and flow rate are the major factors influencing hydraulic jet force and hence, the chip bending [44,100]. Sharman et al [198] achieved a 40% reduction in tool temperature by the use of high-pressure lubricoolant supply compared to conventional flood cooling.…”

Transitioning to sustainable production – Part I: application on machining technologies

“…-Decreasing the cutting tool-chip contact length, resulting in lower cutting forces and longer tool-life [24]. -A drastic improvement in chip breakability [25,26].…”