THE EFFECTS OF BALL-BURNISHING AND ROLLER-BURNISHING ON THE SURFACE-ROUGHNESS AND HARDNESS OF SOME NONFERROUS METALS

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