MECHANICAL PROPERTIES ANALYSIS OF HARD COATED CUTTING TOOL

MATERIAL SCIENCE AND METALLURGY

All high-speed tool steels have many similar mechanical and physical characteristics the properties may vary widely due to changes in chemical composition. Basically, the most important property of a high-speed tool steel is its cutting ability. M2 grade is a medium alloy high speed steel which has a good machinability and a good performance and used in a wide variety of application. The aim with this is to extend the understanding on how the mechanical properties & cutting performance are affected by cutting tool and workpiece during operation. Thin Films of TiAlN and CrN have been deposited on HSS M2 grade cutting tool substrate using Cathodic Arc Evaporation (CAE-PVD) Method. Comparison thickness, Surface roughness, Wear resistance, Cutting force, Hardness, to measure between two coating material also with uncoated tool.

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