Mithun Sarkar

RESEARCH, TEACHING, or OTHER INTERESTS

Energy, Mechanical Engineering

Scopus Publications

On the Flexible Abrasive Tool for Nanofinishing of Complex Surfaces
Mithun Sarkar, V. K. Jain, and Ajay Sidpara
World Scientific Pub Co Pte Lt
Nanofinishing of complex surfaces is an important but costly processing step for many products for performing their functions satisfactorily. This paper deals with the development of a flexible abrasive tool for nanofinishing of complex surfaces. A flexible finishing tool similar to the ball end mill is developed by curing Polydimethylsiloxane (PDMS). A bowl-shaped copper workpiece is finished to nanometer surface roughness value. Different sizes of abrasive particles are used to reduce surface roughness value of the workpiece. A corrosion inhibitor is mixed with the abrasive slurry to protect the finished copper workpiece surface. A final surface roughness value of 50[Formula: see text]nm has been achieved with a variation up to 70[Formula: see text]nm on different locations of the bowl-shaped workpiece.


Nanofinishing of freeform surfaces using abrasive flow finishing process
Mithun Sarkar and VK Jain
SAGE Publications
Freeform complex surfaces have become an essential part of many devices to perform the required functions. Many of these components require nanometer-level surface finish to perform the desired functions efficiently. In this work, an attempt has been made to improve the external morphology of freeform surfaces, especially knee joint, by abrasive flow finishing process. A uniform mirror finished surface with improved finishing rate is achieved for stainless steel knee joint. Extrusion pressure is varied to reduce final surface roughness value and finishing time. Experimentally, good surface finish ranging from ( Ra) 42.9 to 62.5 nm is achieved at various locations of the knee joint which are within the recommended American Society for Testing and Materials standard (≈100 nm) of knee joint prosthesis. Effects of abrasive flow finishing process parameters are investigated to develop “know how” of the process on the freeform surfaces. Abrasive flow finishing process has given 76.56% reduction in finishing time as compared to the time required by “ball end” type tool used for finishing knee joint.

RECENT SCHOLAR PUBLICATIONS

MOF-Derived Trifunctional High Entropy Sulfides as an Electrocatalyst for Alkaline Unitized Regenerative Fuel Cell Application
VRSS Kalahasti, M Sarkar, A Jha, YP Kharwar, PC Ghosh, A Dutta
Electrochemical Society Meeting Abstracts 244, 2034-2034 2023



Mns-MWCNT Composite, as a Superior Electrode Material for Asymmetric Flexible Quasi Solid-State Supercapacitors
M Sarkar, ST Aziz, VRSS Kalahasti, PC Ghosh
244th ECS Meeting (October 8-12, 2023) 2023



On the flexible abrasive tool for nanofinishing of complex surfaces
M Sarkar, VK Jain, A Sidpara
Journal of Advanced Manufacturing Systems 18 (01), 157-166 2019



Weld cladding with austenitic stainless steel for imparting corrosion resistance
B Khara, ND Mandal, A Sarkar, M Sarkar, B Chakrabarti, S Das
Indian Welding Journal, 74-81 2016



Nanofinishing of freeform surfaces using abrasive flow finishing process
M Sarkar, VK Jain
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of 2015

MOST CITED SCHOLAR PUBLICATIONS

Nanofinishing of freeform surfaces using abrasive flow finishing process
M Sarkar, VK Jain
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of 2015
Citations: 46



Weld cladding with austenitic stainless steel for imparting corrosion resistance
B Khara, ND Mandal, A Sarkar, M Sarkar, B Chakrabarti, S Das
Indian Welding Journal, 74-81 2016
Citations: 26



On the flexible abrasive tool for nanofinishing of complex surfaces
M Sarkar, VK Jain, A Sidpara
Journal of Advanced Manufacturing Systems 18 (01), 157-166 2019
Citations: 5