Metal cutting process is the most complex process which has many factors contributing towards the quality of the finished product. Turning is one among the metal cutting process in which quality of the finished product depends mainly upon the machining parameters such as speed, depth of cut, feed rate, type of coolant used, types of inserts used etc. Similarly the work piece material plays a vital role in metal cutting process. In turning process achieving a good surface quality and minimum cutting forces are the most importance. It involves many process parameters which directly or indirectly influence the surface roughness and cutting forces of the product in common. A precise knowledge of these optimum parameters would facilitate to reduce the machining costs and improve product quality. In this project turning of Nickel alloy as a work piece and carbide insert tool is performed. The cutting parameters are optimized by using Taguchi method. The range of parameters are cutting speed(100,125,150 m/min) ,feed rate(0.1,0.2,0.3 mm/rev), depth of cut(0.4,0.8,1.2 mm) and the different tool geometries with the use of Taguchi design of experiment to optimize and analyze the multi response parameters surface roughness and cutting forces.

Keywords : Turning, Nimonic-80, Surface Roughness, Cutting Forces, Taguchi.