Optimization of Surface Roughness Using Taguchi Method for Dry Machining In Milling Process of Alloy Special Steel

In machining to improve machinability, productivity and to extend tool life coolants and lubricants where used .Increasing industry the use of cutting fluids subsequently increasing this leads in reduce of living conditions nearby future all the governments recommend the manufacturers to reduce the usage of toxicity cutting fluids. Still research for dry machining challenge is exiting for the industries, particularly in aerospace engineering. In this study Taguchi method is applied to evaluate the machinability of 20Mncr5 by carbide insert with coolant and compressed air of 1 bar as coolant medium. The experiment carried by orthogonal array, S/N ratio, ANOVAs for optimum machining. Keyword: Dry machining, air coolant medium, Milling, Taguchi Method, optimization. -------------------------------------------------------------------------------------------------------------------------------------Date of Submission: 21-07-2017 Date of acceptance: 05-08-2017 -------------------------------------------------------------------------------------------------------------------------------------