Effect of Machining Parameter on Surface Roughness During Turning Inconel 718 In Minimum Quantity Lubrication (MQL)

Abstract

Inconel 718 are becoming a leading material among superalloy materials and this is material is referred to a family of austenitic nickel-chromium-based superalloys. These materials are known as then difficult to machine materials because of hardness high temperature resistance. In this study, an attempt has been made to model the machinibility evaluation through the response surface methodology in the machining of Inconel 718 material using the CNC turning machine. The effects of machining parameters combined together are, cutting speed (V), feed rate (f), depth of cut (d) with the cooling condition dry cutting and flow rate of minimum quantity lubrication (MQL). The results from the machining are surface roughness and hardness is investigated. This experiment was conducted by using design of experiment (DOE), with two levels (full factorial) with four levels.