1Assistant Professor, Department of Mechanical Engineering, V. R. Siddhartha Engineering College, Vijayawada
2Professor, Department of Mechanical Engineering, J. N. T. U. College of Engineering, Kukatpally, Hyderabad, India.
3Professor, Dept. of Mechanical Engineering, Mahatma Gandhi Institute of Technology, Hyderabad, India.
Roller burnishing tool is used for the experimental work of the present study on a specially fabricated mild steel specimen. In roller burnishing, a hard roller is pressed against a rotating cylindrical work piece and parallel to the axis of the work piece. Burnishing is essentially a cold forming process, in which the metal near a machined surface is displaced from protrusions to fill the depressions. In the present work, various experiments are conducted to investigate the effect of burnishing force and number of tool passes on surface hardness and surface roughness of mild steel specimens. The results show that improvements in the surface roughness and increases in surface hardness were achieved by the application of roller burnishing with mild steel specimens. The results are presented in this paper. Roller burnishing produces better and accurate surface finish on Aluminum work piece in minimum time. Roller burnishing is an economical process, where skilled operators are not required. This process can be effectively used in many fields such as Aerospace Industries, Automobiles Manufacturing sector, Production of Machine tools, Hydraulic cylinders, etc.
Roller burnishing, dynamometer, surface roughness value Ra, burnishing force, burnishing speed, surface hardness and mild steel
