Machining of Inconel 718 Flat Surfaces with Chemically Assisted Magnetic Abrasive Finishing Process

摘要

Background/Objectives: With latest innovations and advancements in material sciences and technology, new materials are being introduced to meet industrial requirements. One of such material is Inconel 718 which possesses high hardness, high melting point and finds wide industrial applications. Due to its materialistic properties, Inconel 718 is difficult to machine by conventional methods. As compared to conventional machining/finishing process, better results can be obtained with non-conventional machining/finishing processes. In present research work, flat Inconel718 surface is machined with a combination of two non-conventional machining/finishing processes: Chemical Machining and Magnetic Abrasive Finishing process. An experimental setup was arranged and investigations were conducted to analyze the effect of chemically assisted magnetic abrasive finishing on material removal rate from Inconel 718 surface using multipole magnetic tool. Three process parameters: Processing time, weight percentage of abrasives and concentration of etchant (FeCl 3 ) and their range have been selected. These process parameters and their effects on material removal have been studied and analyzed. Methods/ Statistical Analysis: The experimental planning using various ranges of parameters and their randomized order was prepared using Design Expert software. The results were modulated and concluded by converting the output response i.e., Material removal into graphs using Design expert software. Findings: The effects of varying parameters such as processing time, Wt. % of abrasives and concentration of FeCl 3 (etchant) on the material removal rate have been investigated. Improvements/ Applications: Chemically Assisted Magnetic Abrasive Finishing successfully machined Inocnel 718 surface with better efficiency and good surface finish. Significant effect of parametric investigations was observed on Inconel 718.