Experimental study and optimization of machining parameters on magnesium hybrid metal matrix composites

Abstract

At the present, the usage of magnesium (Mg) is getting huge focus newlinefrom different industries considering their light-weightness, good stiffness, newlinebiocompatible nature, fracture-toughness and good strength. The automotive newlinesector is becoming more interested in reducing weight to improve fuel newlineefficiency, lower greenhouse gas emissions, and consume less energy because newlinethere are less fossil fuel reserves and environmental issues related to fuel newlineemitting products. Metal matrix composites (MMCs) are the main alternative newlineto steel and other commercial materials that are being focused on by modern newlineindustry. Magnesium Matrix Composites are becoming increasingly utilised newlinein the automotive and conveyance industries owing to its superior strength, newlineductility, lower weight, and great wear resistance. newlineHybrid MMCs based on magnesium that was created with varying newlineweight percentages of Al2O3 and Gr were used to carry out the experiment. newlineThe main intention of this work is to detect the behavior of magnesium matrix newlinecomposites in the turning process utilizing cutting-inserts of both, cryogenic newlinetreated and untreated types. Performance indicators like Surface Roughness newline(SR), Cutting Force (CF), Cutting-Zone Temperature (CT), and Tool Wear newline(TW) were monitored. Taguchi s experiment design served as the basis for newlinethe planning of the experiments. newlineDry machining conditions were employed for all turning newlineoperations. The experimental-setup was equipped with a Kistler newlinedynamometer, for recording cutting force in every experiment. By means of a newlineMITUTOYO SJ 210 machine (surface roughness tester), the machined newlinesurface was measured in each experiment. newline