Materials Today: Proceedings | 2019
An experimental study on investigation of machining of nickel based super alloy 718
Abstract
Abstract The current paper is an experimental study concerning the machinability of super alloy 718 involving high speed turning operation. Ceramic inserts under three different speeds with fixed feed and depth of cut have been invoked in the experimentation. The impacts of machining parameters on the tool wear were studied using SEM micrographs. The experimental analysis shows that the triangular Al2O3 ceramic insert offers the most effective cutting performance in the machining of super alloy 718. The ceramic cutting tools were acutely affected by the cutting speeds as seen from the SEM and EDS analysis. The present work has unconcealed attention-grabbing findings regarding the tool wear mechanisms with regard to the machining of nickel alloy 718. The most prominent phenomenon of cutting tool wear was found to be the Adhesion wear. The resulting tool wear and chip morphology have been extensively studied.