__Dr. Rupinder Singh is a professor at the Department of Mechanical Engineering, National Institute of Technical Teacher Training and Research, Chandigarh. He has received a Ph.D in Mechanical Engineering from Thapar Institute of Engineering and Technology Patiala. His research areas are additive manufacturing, 4D Printing, composite filament processing, rapid tooling, metal casting, and plastic solid waste management. He has authored more than 500 science citation-indexed research papers, ten books, and more than 100 book chapters, and has presented more than 100 research papers at various national/international conferences. Dr. Singh has been listed among the top 2% of scientists in the world, as reported by Stanford University in the year 2022-2024.__Dr. Ranvijay Kumar is an Assistant Professor at the Marwadi University Research Center, Marwadi University. He has received a Ph.D in Mechanical Engineering from Punjabi University, Patiala. Additive manufacturing, shape memory polymers, innovative materials, friction-based welding techniques, advanced materials processing, polymer matrix composite preparations, reinforced polymer composites for 3D Printing, 4D Printing, plastic solid waste management, thermosetting recycling and destructive testing of materials are the skills of Dr. Ranvijay Kumar. He has co-authored more than 90 research papers in science citation index journals, 09 books, and 75 book chapters and has presented 20 research papers at various national/international conferences. Dr. Kumar has been listed among the top 2% of world scientists, as reported by Stanford University, in the years 2022, 2023 and 2024.__Dr. J. Paulo Davim is a Full Professor at the University of Aveiro, Portugal. He is also distinguished as honorary professor in several universities/colleges/institutes in China, India and Spain. He received his PhD in Mechanical Engineering, MSc in Mechanical Engineering (materials and manufacturing processes) and Mechanical Engineering degree (5 years), from the University of Porto (FEUP), the Aggregate title (Full Habilitation) from the University of Coimbra and the DSc (Higher Doctorate) from London Metropolitan University. He is Fellow (FIET) of IET-London and Eur Ing by Engineers Europe FEANI-Brussels. He is also Senior Chartered Engineer by the Portuguese Institution of Engineers with an MBA and Specialist titles in Engineering and Industrial Management as well as in Metrology. He has more than 35 years of teaching and research experience in Manufacturing, Materials, Mechanical and Industrial Engineering, with special emphasis in Machining, Tribology & Surface Engineering. ORCID: https://orcid.org/0000-0002-5659-3111