The effects of ball- and roller-burnishing on the surface roughness and hardness of some non-ferrous metals

Simple ball- and roller-burnishing tools were used for the experimental work of the present study, these tools being quite similar in their design principles. The performance of the tools, together with the effects of the burnishing force and the number of burnishing tool passes on the surface roughness and surface hardness of commercially available aluminum and brass, were studied. The results show that improvements in the surface roughness and increases in the surface hardness were achieved by the application of both ball burnishing and roller burnishing with the non-ferrous metals under consideration. (C) 1997 Elsevier Science S.A.