Cutting performance of micro-textured WC/Co tools in the dry cutting of Ti-6Al-4V alloy

Abstract

To further improve the cutting performance of WC/Co tools in the dry cutting of Ti-6Al-4V alloy. Experiments in dry cutting titanium alloy were carried out using micro-textured YG8 tools under different cutting speeds and depths. Three kinds of YG8 tools with the rake face machined with line groove, sinusoidal groove, and rhombic groove were adopted as the micro-texture YG8 tools. The cutting force, friction coefficient of the tool-chip contact zone, chip morphology, tool wear, and surface quality of machined titanium alloy were analyzed. The results show that the micro-textured tools can effectively reduce the wear area on the rake face and flank face, improve the wear form on the rake face, reduce the occurrence of oxidation wear, and improve the surface quality of machined Ti-6Al-4V alloy. Therefore, micro-textured tools can effectively improve cutting performance and prolong tool life. The existence of micro-texture on the tool surface has a certain influence on the tool performance. The line groove-textured tool has the best effect, followed by the sinusoidal and rhombic groove-textured tools.