MSE Colloquium: Amit Bandyopadhyay, Laser Engineered Net Shaping of Metals and Ceramics

Professor, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA

All dates for this event occur in the past.

264 MacQuigg Labs
105 W. Woodruff Ave
Columbus, OH 43210
United States

Abstract

Application of layered or additive manufacturing (AM) is becoming technologically important for low volume or one of a kind part manufacturing, designing of novel materials and coatings and repairing of functional components and tools. Apart from being cost effective, AM technologies are now used to produce parts that are difficult to manufacture using conventional approaches. In our research, we have used Laser Engineered Net Shaping (LENS™), a commercially available AM technique (Commercialized by Optomec Inc., Albuquerque, NM). Our LENS™ system is equipped with a continuous wave 500W Nd:YAG laser with a double powder feeder system. Over the years, we have used this system to process a variety of metals, ceramics and composites for structural, piezoelectric and biomedical applications. In our work, we have shown that LENS™ can be used to produce ceramic parts directly via laser-melt cast route; fabricate compositionally as well as structurally gradient parts with both open and closed porosity and create coatings with high interfacial strength because of a diffused interphase. The presentation will focus on examples of LENS™ based additive manufacturing of metals and ceramics and their applications.

Bio

Amit Bandyopadhyay received his Ph.D. in Materials Science and Engineering from the University of Texas at Arlington in 1995. He joined the Center for Ceramics Research at Rutgers University for his post-doctoral training in 1995. In 1997, he joined the School of Mechanical and Materials Engineering (MME) at WSU as an Assistant Professor and promoted to an Associate level in 2001 and to the full professor level in 2006. Prof. Bandyopadhyay supervised / supervising 12 Ph.D., 22 MS and over 35 undergraduate students in materials science and engineering, mechanical engineering, physics and bioengineering. He has published 158 journal papers, 55 conference proceedings, 5 book chapters and edited 4 books. His papers have been cited over 3400 times and current “h” index is 33. He holds 8 US patents and 7 more patent applications are currently pending. Among others, he has received the CAREER award from the NSF and the Young Investigator Program award from the ONR. He is a Fellow of the American Ceramic Society (ACerS), American Society for Materials (ASM), American Institute for Medical and Biological Engineering (AIMBE) and American Association for the Advancement of Science (AAAS).