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1 2012

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Investigation of surface integrity in high-speed ball end milling of cantilever shaped thin plate of Inconel 718

Bhopale N N, Pawade R S

Journal of Achievements in Materials and Manufacturing Engineering

2012

Vol. 55, nr 2

616--622

The paper addresses the effects of cutting speed and feed on the work piece deflection and surface integrity during milling of cantilever shaped Inconel 718 plate under different cutter orientations. The experiments were conducted on a CNC vertical milling machine using 10 mm diameter TiAlN coated solid carbide ball end milling cutter. Surface integrity is assessed in terms of micro hardness beneath the machined surface. The micro-hardness profile shows different patterns at various cutting parameters. It is observed that at large cutting speed as well as feeds, thicker work piece with larger work piece inclination shows higher micro hardness as compared to the other machining conditions.