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ABSTRACT
Origami-based sheet metal, a novel emerging technique, is explored in this paper. The process is similar to traditional process of making the Origami art from paper. Sheet metal forming is also considered as a paper with negligible thickness. Here the process was tried differently than traditional sheet metal-bending process. On the bend line, the material was removed intermittently. This process created the material discontinuity at the bend line. However, removing the material from the bend line opened the sections and it would not be able to use as a container to hold any liquid material due to leakage issue. Thus, in this paper, the material discontinuity was created by removing the small amount of material but not through. This can be called as blind material discontinuity. With change in thickness and width at material discontinuity four samples were created to see the effect on bending deformation and springback. In addition, die clearances and either MD will be faced on die or punch side was explored. From the results it was found that the lower thickness at material discontinuity and on die side would provide lower springback if the width of material discontinuity is higher.
Notes contribution
Dr. Chetan Nikhare is an Associate Professor of Mechanical Engineering at Penn State Erie, The Behrend College. He earned a B.E. in Mechanical Engineering from Nagpur University, India in 2003, M.Tech. in Metallurgical Engineering and Materials Science from Indian Institute of Technology Bombay, India in 2006, and the Ph.D. in Mechanical Engineering from Deakin University, Australia in 2010. Dr. Nikhare joined the Penn State Behrend faculty in August 2012. Prior to joining the faculty, he worked as a Post-Doctoral Research Associate in Mechanical Engineering Department at University of New Hampshire. To date, he has performed different aspects of numerical and analytical modeling for material undergoing mechanical processes. He learned constitutive modeling of mild steel and advanced high strength steels and microstructural modeling during his graduate and post-graduate studies. His research interest are, but not limited to, experiments and numerical simulation of sheet metal and bulk forming in various deformation mode, fatigue and fracture, hydroforming and analytical modeling of material mechanics and processes.
Dr. Nitin Kotkunde holds a Master’s and Ph.D. from Birla Institute of Technology and Science, Pilani (BITS-Pilani) university, India. He is presently working as an Assistant Professor in the Mechanical Engineering Department of BITS-Pilani, Hyderabad Campus. He has 13 years of teaching and industry experience. He taught several PG and UG level design engineering courses such as Fracture Mechanics, Theory of Elasticity and Plasticity, Advance Mechanics of Solids, Product Design, Machine Design, and Drawing. He is actively involved in the research of deformation behaviour and high-temperature material forming studies. He has vast experience in experimental material testing & characterization, material model development, and finite element analysis for sheet metal forming processes. He has published around 30 international journals and 25 international conferences. His articles appear in high impact factor journals like Materials & Design, Journal of Manufacturing Processes, Journal of Alloys and Compounds, Material Characterization, Materials and Manufacturing Processes, and so on. He is an active reviewer for many reputed international journals.
Dr. Swadesh Kumar Singh holds a Masters and Ph. D. from Indian Institute of Technology (IIT) Delhi, India. He received a gold medal for his Bachelor’sdegree at AMU. He is presently working as a Professor in the Department of Mechanical Engineering at GRIET, Hyderabad, India. Prior to joining GRIET he has also served as Assistant Executive Engineer in Indian Engineering Services (IES) and also worked with BHEL for a brief period of time. Dr. S K Singh has been involved in research on Numerical Simulation and Experimental studies on Formability of Sheet Metal Forming at room and at elevated temperatures, Characterization of Metals and Biocomposites. He has done extensive research in the area of Characterization of Low Carbon and Austenitic Stainless Steels, Titaniun Grade-5, DP Steel and Zircally. He is awarded Young Scientist award by Department of Science and Technology, Govt of India and Young Teacher award by All India Council of Technical Education, Govt of India for his contribution in research. He has authored over 175 international journal and conference papers and received the sponsored project grants from various agencies. He has got h-index of 22 on Scopus and having citations over 1800. His articles appear in high impact factor journals like Materials & Design, Journal of Material Processing Technology, CIRP and so on. He received the research funding from Department of Science and Technology, All India Counsel of Technical Education, Department of Atomic Energy, Aviation Research and Development board and several consultancy from Industries.
Acknowledgments
The author would like to thank Penn State Erie, The Behrend College, to perform this research and its unique open lab research facility.
Disclosure statement
No potential conflict of interest was reported by the author(s).