Optimization of Process Parameters of SS 202 on Vertical Milling Machine Using Grey Relational Analysis

As the advancement in the technology some new material are comes in a trend which offers high strength, hardness and resistance to heat. Face milling is a very common method for metal cutting and the finishing of machined parts. The input machining parameters being consider in this research are spindle speed, tool feed and depth of cut. The stainless steel 202 used as work piece. The tool used for the face milling operation is High Speed Steel face milling cutter. The Taguchi's L16 orthogonal array has been used to design the combinations of parameters for the experiments. The surface roughness of SS 202 has been measured after face milling operations and also material removal rate has been measured after the operations. The machining experiments are performed on Computer Numerical Control Vertical Milling Machine (640). Grey Relational analysis is used for finding the optimal values from the all experimental values. The optimum levels of input parameters have been found by Grey analysis are spindle speed 2000 rpm, 400 mm/rev tool feed and 0.2 mm depth of cut for maximum material removal rate and minimum surface roughness.