In this research, an experimental study was undertaken on aluminium using a purpose designed and manufactured burnishing tool. The experiments was designed to find the effects of burnishing tool path and ball diameter on the surface roughness of an Al-6061 workpiece taking into consideration many values of burnishing force in the suitable field, where we have used a new created path and compared its effect with two conventional paths (zig-zag) and (spiral). Twenty seven experiments were carried out on samples of Al- 6061, using the full factorial design method with three parameters: ball diameter, ball path and force, with three levels of each parameter.