Influence of Water Cooling on Orthogonal Cutting Process of Ti-6Al-4V Using Smooth-Particle Hydrodynamics Method

Temperature control during the cutting process with different parameters such as cutting velocity and applying water cooling is essential to decrease the cutting force, increase the life of the cutting tool and decrease the machined surface temperature of work-piece. In this research, the temperature of machined surface and the chip-tool interface in orthogonal cutting process of Ti-6Al-4V were investigated using smooth particle hydrodynamics (SPH) method. The effects of cooling with different speeds and temperatures of water flow on the temperature of these surfaces were studied. The non-cooling model is validated using experimental results. According to the results, a water flow with speed of 0.25 m/s at 20°C temperature causes a significant decreasing in the cutting force and the temperature on machined surface and chip-tool interface.