Experimental Evaluation of Optimum Performance Parameters for Burnishing of Spur Gear

Out of the many available processes for surface finishing like honing, lapping, shaving, grinding the most economic and effective process is burnishing. Burnishing does not remove material from the work piece, it simply takes the material from the peaks and fills it into the valleys. Thereby reducing the average height of micro peaks and valleys present on the surface. This is exactly what reduces the average surface roughness of the burnished surface. This paper studies the burnishing process for gears. An experimental setup for burnishing of gears has been developed. Using the setup, gears of 50 mm diameter and 2.5 mm module were burnished. While burnishing the gears, the burnishing motor speed and the time of burnishing was varied, effect of variation of these two parameters on burnishing process has been studied in this paper. The optimum parameters for burnishing of spur gears obtained through experimentation have been put forth.