Performance Evaluation of Micro-Textured Inserts Coupled With Solid Lubricants During the Sustainable Dry Machining of Inconel 825

Abstract

In this research work, the turning of Inconel 825 has been carried out using uncoated and coated laser-textured hard tungsten carbide (WC) cutting inserts. The efficacy of uncoated textured inserts has been tried to improve by impregnating them with micro-sized MoS2 and nano-TiC powder paste. The results of coated and uncoated textured inserts have been compared with the plain uncoated tungsten carbide insert. The use of solid lubricant-impregnated textured tools and coated textured tools has significantly reduced the cutting forces and chip–tool interface friction as compared to plain and normal textured tools. Upon the SEM analysis, high adhesion over the rake face of the plain tool has been observed. The excessive adhesion over the rake surface has been observed over the normal textured tool due to the derivative cutting phenomena. The use of MoS2 and nano-TiC-impregnated textured tools has significantly reduced the material adhesion over the rake surface by eliminating the derivative cutting effect. The use of AlTiSiN-coated textured tools has also restricted the extent of work material adhesion over the rake surface of the cutting insert.