Investigation of grinding parameters on surface integrity of inconel 718 in high-temperature applications

Surface grinding is a critical finishing process widely used in the manufacturing of components requiring precise surface characteristics, particularly in industries that operate under high-temperature conditions. This study experimentally examines the effects of various grinding factors pertaining to Inconel 718’s surface properties, a nickel-chromium alloy known for its superior strength and resistance to oxidation at high temperatures. A range of commercially available grinding wheels was utilized to grind Inconel 718 under different conditions. The resulting surfaces were thoroughly analyzed using surface roughness measurements, three-dimensional profilometry, and optical microscopy. Advanced characterization techniques, including SEM, were employed to look into the impact of grinding parameters and wheel characteristics on surface texture, topography, residual stress, and microstructural integrity. The findings demonstrate that both grinding parameters and wheel selection significantly affect the surface quality and integrity of Inconel 718. This study provides insightful information on maximizing the grinding process for high-performance nickel-based super alloys, contributing to enhanced surface integrity and component longevity in demanding applications.