Experimental Analysis of External Rol Ler-Burnishing on the Surface Roughness, Surface Hardness and Microstructre of Brass Metal

Surface finish is a critical factor in creating a durable metal component. Manufacturers strive to produce metal surfaces free of scratches, nicks and gouges, since such defects make components vulnerable to damaging cracks. A smooth surface alone is insufficient, however, to protect the component against the wear and tear of regular usage. Machining processes such as milling, turning produce a surface with inherent irregularities. Finishing processes such as grinding, lapping, honing, polishing & buffing commonly seeing employed to improve the surface finish. Unlike the above mentioned traditional methods the Roller Burnishing is a cost effective surface enhancement process in which a smooth hard tool (using sufficient pressure) is rubbed on the metal surface. In this work an attempt has been made to analyze the surface finish of non-ferrous metal brass by external roller burnishing process under different speeds, and depth of cuts at number of passes.