Affiliation:
1. Department of Mechanical Engineering, National Institute of Technology Hamirpur, Himachal Pradesh, India
Abstract
Ball burnishing is a finishing process, in which a ball burnishing tool is used to remove the surface flaws such as scratches, ploughing marks due to previous manufacturing/machining process, indentation, etc. The burnishing operation generates a reflective surface by plastically deforming the roughness peaks and filling the scratches. In the present research, the ball burnishing tool having a hard ball made of carbide has been used to finish the copper samples. Since copper is a soft material, it is very prone to scratch while finishing by most of the finishing processes employing bonded or loose abrasives. In the present study, the effect of different process parameters has been explored on the output performance i.e. Percentage change in surface roughness. From the experimental results it has been observed that in ball burnishing of copper, the maximum improvement in surface finish was about 94% when kerosene is used as a coolant.