speaker

Dr. Arvind Kumar

Associate Professor

Mechanical Engineering, IIT Kanpur

Kanpur - 208 016, Uttar Pradesh, India

email: arvindkr[at]iitk.ac.in

Brief Introduction

Dr. Arvind Kumar is working as an Associate Professor in the Department of Mechanical Engineering at IIT Kanpur. Dr. Kumar received his BTech in Manufacturing Engineering (2001) from NIFFT, Ranchi, Master's degree (2003) and Ph.D (2008) from IISc Bangalore. After PhD, he worked with the European Solidification Group (ESG) as a postdoctoral fellow at Ecole de Mines, Nancy in France. Later, he worked as a Marie Curie Fellow at the University of Southampton in the UK.

His areas of interest include metal additive manufacturing, melting/solidification modelling and experiments, and multiscale computational heat transfer and fluid flow modeling. His group is also involved in the areas of thermal spray surface coating technologies and phase change based energy storage technologies.

Dr. Kumar has published about 60 peer-reviewed journal papers and 100 conference papers. At IIT Kanpur he is leading the Additive Manufacturing Group (AMG), and currently executing projects in the areas of additive manufacturing, solidification and energy storage.

Dr. Kumar's academic honors include PK Kelkar Young Faculty Research Fellowship Position at IIT Kanpur, IEI Young Engineers Award, Britain’s Young Engineers in the UK, YIM Boston Award 2011 in the USA, Marie Curie Fellowship.

Abstract

Metal Additive Manufacturing: Transition From Prototyping to Production: Commonly known as 3D Printing, Additive Manufacturing (AM) is a suite of computer automated processes to fabricate three-dimensional physical objects layer by layer from CAD model. AM offers significant benefits over conventional manufacturing processes in producing one-of-a-kind parts or small batches, especially for those with geometric and/or material complexities. It holds great promise for the future as a tool-less, light-out manufacturing technology for components and products made of metals, polymers, ceramics and composites. The Additive Manufacturing of metals presents both great promise for larger scale application of AM and challenges in producing structurally sound components with consistent material properties. The characteristic layer-by-layer deposition of the AM process can lead to unique microstructures and properties. Despite the rapid growth of the Additive Manufacturing, the range of materials available for AM is far smaller than the breadth available for conventional manufacturing processes. This is due to the complexity of the metallurgical phenomenon occurring in the AM process. Selective laser melting (SLM) is one of the AM processes which has become the most important and investigated process, as it has the potential to provide fully dense parts. This has led to a revolution in the associated industries, such as aerospace, automotive, tooling, etc., and now is being looked to cause huge market disruption. Worldwide, SLM has been in the center of research activities in both academia and industry. Corporate giants like GE, Siemens, Boeing are now shifting their focus on this process and are gradually adopting it for commercial production. Despite the extensive research and development going on throughout the world, India remains lagging much behind many countries when it comes to research related to SLM process. This talk will first present applications of metal AM with special emphasis to SLM in the aerospace, automotive, biomedical and other industries. Subsequently, the ongoing research work (experimental and numerical) at our Additive Manufacturing Group (AMG) targeted at improved understanding and control of the processing conditions will be discussed.