Sandip Kunar, PhD, is an Associate Professor in the Department of Mechanical Engineering, Aditya Engineering College, Surampalem, Andhra Pradesh, India. He has published 12 books, 35 book chapters, one patent, and more than 50 research papers in reputed international journals and conferences. His research interests include non-conventional machining processes, micromachining processes, advanced manufacturing technology, and industrial engineering.

Jagadeesha T., PhD is an Associate Professor in the Mechanical Engineering Department at the National Institute of Technology Calicut, Kerala, India with more than 25 years of experience. He has published seven textbooks, four patents, and more than 75 articles in international journals and conferences. His research interests include advanced machining, additive manufacturing, fluid power control, advanced materials, and vibration and noise control.

Gurudas Mandal, PhD is an Assistant Professor in the Department of Metallurgical Engineering at Kazi Nazrul University, West Bengal, India. He has published nine book chapters, one patent, and more than 20 articles in international journals and conferences. His research focus is on alloy steel and cast iron, composite materials, magnetic materials, hydrogen energy, and archaeometallurgy.