Title: A novel magnetorheological finishing process based on three revolving flat tip tools for external cylindrical surfaces

Authors: Gagandeep Singh; Arvind Jayant

Addresses: Department of Mechanical Engineering, Sant Longowal Institute of Engineering and Technology, Longowal, India ' Department of Mechanical Engineering, Sant Longowal Institute of Engineering and Technology, Longowal, India

Abstract: The magnetorheological finishing technique based on a stationary curved tip tool is found less effective in finishing external cylindrical surfaces. Therefore, three revolving flat tip tools-based magnetorheological finishing process which utilises the rotation of both workpiece and tools have been developed to address the issues of the existing method. Also, a feed mechanism has been built to provide the longitudinal movement to the workpiece. A workpiece of mild steel has been finished by both developed and existing methods. It has been observed that after finishing 1 hour 30 minutes with a stationary curved tip tool, surface roughness values R_a, R_q, and R_z decrease by 69.29%, 64.41%, and 61.26%, respectively. Whereas, the reduction in the surface roughness value of R_a, R_q, and R_z by 85.38%, 84.51%, and 82.7%, respectively, have been noted after finishing with the three revolving flat tip tools process at the same parameters and conditions.

Keywords: magnetorheological fluid; external cylindrical surfaces; surface roughness; magnetorheological finishing.

DOI: 10.1504/IJSURFSE.2023.128876

International Journal of Surface Science and Engineering, 2023 Vol.17 No.1, pp.1 - 15

Received: 06 Apr 2022
Accepted: 04 May 2022
Published online: 08 Feb 2023 *