ABSTRACT

Inconel 718 is hard-to-cut material which is in high demand for a lot of industries including aerospace, defense, energy production, biomechanical, and chemical. Many cutting tools have been used to machine this hard material but have failed. However, ceramics and tungsten carbide have shown better results and are being used to improve the machinability and provide high cutting conditions. The aim of this paper is to optimize the cutting parameters: Spindle speed, tool feed, and depth of cut and response parameters: Surface roughness, tool wear needed for machining this hard material using signal to noise ratio (S/N), and gray relational analysis (GRA) which are considered as effective tools.