A Brief Review on Machining of Inconel 718

Inconel 718 is a novel material introduced in the field of hard to machine material. As it has the ability to withstand tremendous environmental conditions, it is commonly used in combustors, turbocharger rotor and seals, heat exchangers, nuclear reactors, turbine blades, electric submersible well pump and motor shaft and high-pressure vessels. Due to its high strength to weight ratio it is also used in aeronautical and aerospace industry. In recent decade there is a growing demand for cost efficient and eco-friendly machining, many researcher are taking keen interest in development of more advance machining processes. During machining of hard to machine materials, the proper selection of machining processes and cooling conditions plays a vital role which affects the machining performance. This present review paper focuses on the brief description of different machining operations (turning, milling, and drilling) during machining of Inconel 718. In addition, comparison between different cooling environments (Dry, MQL and Cryogenic) and different aspects of cooling fluids are Presented. Experimental and theoretical observations for tool wear, surface roughness and machining temperature using different types of cutting inserts and cooling environments have been discussed. (C) 2018 Elsevier Ltd. All rights reserved.