Minimum Quantity Lubrication through the micro-hole textured PCD and PCBN inserts in the machining of the Ti-6Al-4V alloy

摘要

A novel cutting tool development with the micro-hole textures on the flank and rake face of the cutting inserts helps in the reduction of tribological properties. The machining of Ti-6Al-4V alloy leads to some challenges during machining namely higher cutting temperature, and rapid tool wear. In this research, a comparison study has been performed with the new cutting tool inserts with surface modification such as Polycrystalline Cubic Boron Nitride (PCBN) and Polycrystalline Diamond (PCD) inserts for high-speed machining of Ti-6Al-4V alloy. The influence of the micro-hole textured insert on the machining of the Ti-6Al-4V alloy was investigated with the Minimum Quantity Lubrication (MQL) method. Compared to modified PCBN inserts, modified PCD inserts showed better results in all the performance characteristics.