Environmental friendly hard machining performance of uncoated and MoS2 coated mechanical micro-textured tungsten carbide cutting tools

Nowadays dry machining is favored due to various detrimental environmental effects and health hazards to operator by use of cutting fluids. Surface texturing on the cutting tool is one of the viable solutions to enhance tribological properties in dry hard machining. In present paper, performances of six different mechanical micro-textured (MμT) cutting tools are compared. At first, three different types of MμTs are fabricated on the cutting tool rake face using Vickers hardness and micro-scratch testers. Furthermore, a set of MμT tools are coated with molybdenum disulphide (MoS2). Dry machining experiments are carried out and found that MoS2 coated perpendicular MμT tool performs better among all. Thus, MμT tools can be a viable alternative to the cutting fluids in machining.