Abstract
In the present work, effect of addition of Copper powder in the dielectric media during electro-discharge machining of Inconel 718 has been attempted. Since, traditional machining routes are inappropriate for ‘difficult-to-cut’ materials (like Inconel 718 super alloys); EDM process has been adapted. In contrast to conventional EDM (no powder); addition of conductive powder particles into the dielectric media has been recommended in literature in order to improve machinability of super alloys. Experiments have been performed by varying peak discharge current and pulse duration; Copper powder (400 Mesh) has been added to the EDM oil (dielectric media). Performance of powder-mixed EDM has been analyzed in terms of material removal efficiency, surface roughness, surface crack density and white layer thickness. EDS and XRD tests have been carried out to understand chemical composition and metallurgical aspects of the machined surface (viz. material migration, phase, extent of grain refinement, formation of intermetallic compounds, residual stress) as compared to ‘as received’ parent material.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
