Improving Grindability of Inconel-600

Abstract

Conventional fluid delivery system is not much effective to reduce heat generation due to presence of a stiff air layer covering the periphery of grinding wheel. Thermal damages in grinding a super alloy are stringent and problematic. In this paper, a report on the experimental investigation carried out on grinding a nickel based super alloy, Inconnel-600 is made. Different infeeds are considered with dry, wet and wet with pneumatic barrier conditions. To break the stiff air layer covering grinding wheel, high pressure air jet is employed just above the conventional grinding fluid nozzle to facilitate grinding fluid reach the wheel-workpiece interface area. This is termed as a pneumatic barrier. Grinding performance under these environmental conditions has been investigated. Results show better grinding performance with the application of pneumatic barrier in the wet condition as it tends to facilitate fluid reach deep inside the grinding zone effectively.