Sandip Kunar, PhD, is an assistant professor in the Department of Mechanical Engineering, Aditya Engineering College, A.P., India. He has published more than 50 research papers in various reputed international journals, national and international conference proceedings, 16 book chapters, and 10 books as well as two patents. His research interests include non-conventional machining processes, micromachining processes, advanced manufacturing technology, and industrial engineering.

Norfazillah Binti Talib, PhD, is a senior lecturer in the Department of Manufacturing Engineering, Faculty of Mechanical and Manufacturing Engineering, University Tun Hussien Onn Malaysia, Parit Raja, Johar, Malaysia. She has also been appointed the Head of the Precision Machining Research Center. She has published numerous papers in reputable journals, book chapters, and proceedings from conferences and has filed one patent. Her research interests include sustainable manufacturing processes, bio-based lubricants, and tribology.

Gurudas Mandal, PhD, is an assistant professor in the Department of Metallurgical Engineering, Kazi Nazrul University, West Bengal, India. He has about 25 technical research publications in international journals, eight conference proceedings and 10 book chapters, as well as one patent.