Paper Title
Performance Evaluation Of Titanium Nitride Coated K20 Insert On Machining Micro Alloy Steel Grade Sae 9259

Abstract
An experimental investigation on turning of SAE 9259 Micro Alloy Steel (MAS) is studied on the cylindrical rods of diameter 100 mm and length 250 mm using the medium-duty lathe of 2 kW spindle power to understand the machining behavior of MAS using K20 single coated (TiN) carbide insert. The optimum cutting parameters have been identified by experimental values and the graph. Experimental results have shown that surface roughness is good at lower cutting speed with low depth of cut and feed rate. Tool wear study also performed for time duration of 30 minutes using the optimum parameters to analyze the tool wear mechanism. Photographic images support the result. Key words- MAS, K 20 single - coated carbide insert, Surface roughness, Power consumed, Tool wear