Experimental investigation on the effect of radial rake angle in the end mill cutter and machining parameters on vibration amplitude and surface roughness

Abstract

Economy of machining operation plays a major role in the newlinecompetitive market. The selection of efficient machining parameters is of newlinegreat concern in manufacturing industries. The machine tool industry has newlinemade exponential growth in its manufacturing capabilities in the last decade, newlinebut it still lacks in the selection of machining parameters while machining newlinedifferent type of materials. This limitation is a result of the failure to run the newlinemachine tools at their optimum operating conditions. The problem of arriving newlineat the optimum levels of the operating parameters has attracted the attention newlineof researchers and practicing engineers for a very long time. The effects of newlineVibration, Surface roughness, Tool wear during the time of machining newlineoperation have been the biggest challenges for the researchers and practicing newlineengineers. Manufacturers try to control certain factors to improve the machining quality based on their operational experiences, manuals or failed newlineattempts. Keeping in view the applications of Aluminium 6063 material has newlinebeen selected as material for study. newlineThe literature survey revealed that limited research has been newlineconducted by considering the combination of machining parameter, radial newlinerake angle in end mill cutter, spindle speed, feed rate, and axial, radial depth newlineof cut to obtain the optimal level. Mechanical vibrations are produced by the cyclic variations in the newlinemachine components, due to dynamic interactions between the cutting tool newlineand the work piece which results in reduced productivity, poor surface finish newlineand reduced tool life and deteriorated quality. Decreasing vibration amplitude newlineduring end milling process reduces tool wear and improves surface finish. The main goal of this thesis is to analyze the effect of the newlinemachining parameters which create more vibration and the effect of the newlinemachining parameters which increases surface roughness in the milling newlineprocess. newline