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International Conference on Innovative Applied Energy    

E-Proceedings ISBN: 978-1-912532-05-6

14-15 March 2019, Oxford, United Kingdom



Microwave plasma assisted micro-drilling of polymeric material at 2.45 GHz



N K Lautre (1), A K Sharma (2), P Kumar (2) and S Das (3)

1. Department of Mechanical Engineering, VNIT Nagpur,MS, India

2. Department of Mechanical and Industrial Engineering, IIT, Roorkee, India

3. Scientist, BARC, Mumbai, MS, India


Paper Abstract

In Non-conventional drilling is gaining high edge and importance for micro-fabrications. Microwave Plasma assisted micro-drilling is one of the processes showing practical feasibility for polymeric materials. Till date very few developments are reported since the inception of the concept in year 2000. The paper highlights an attempt to drill hole of less than an mm size to an aspect ratio of more than 5, on a perspex material. The material selected for drill tool is steel and copper of size less than an mm. A customized setup is used to generate microwave plasma at the tip if the drill, at 2.45 GHz. The power settings are selected in the step of 90 W to 700 W, with five distinct power steps. The micro-hole was drilled by plasma ablation of polymeric material from the hot spot region. The change in drill material, microwave power shows variation in the quality of hole drilled in polymeric material. 

Paper Keywords
Microwave, energy, plasma, drilling, polymers.
Corresponding author Biography

Dr. NITIN KUMAR LAUTRE is working as Assistant Professor in the Mechanical department from 2008. He did his B.E. (UG) from Nagpur University in 1997 and then completed his M.Tech (PG) from Nagpur University in 1999. Thereafter he worked Hindustan Aeronautical Limited, Barrackpore for almost one year. After that, he joined Punjab Engg. College, Chandigarh and worked as Lecturer for 5 years and as Senior Lecturer for 3 years before joining VNIT in 2008. He did his Ph.D. from IIT ROORKEE. His Area of specialization is in unconventional material removal system. He teaches subjects Manufacturing Processes, Fluid Machines, Engineering Drawing, Supply Chain Management, and Statistical Quality Assurance. He published 08 papers in international Journals and 25 papers in national and international conferences. He is a fellow member of Institute of Engineers.

The International Conference on Innovative Applied Energy (IAPE’18)