speaker

Dr. Prashant K. Jain

Associate Professor

Mechanical Engineering, IIITDM Jabalpur

email: pkjain[at]iiitdmj.ac.in

Brief Introduction

Dr. Prashant K. Jain has over 22 years of research and teaching experience at UG and PG levels. He is graduated in Mechanical Engineering from Dr. H. S. Gour University Sagar in 1995 and did Master’s in Advanced Production Systems from SATI Vidisha. He has received PhD Degree in the area of Rapid Prototyping/Additive Manufacturing, particularly on Part Strength studies in Selective Laser Sintering Process from Indian Institute of Technology Delhi, Delhi in 2009.

Dr. Prashant K. Jain was previously with Delhi Technological University Delhi (formerly known as Delhi College of Engineering) as lecturer in Mechanical Engineering Department. He has also served Indian Institute of Technology Delhi as project scientist and research associate where he was engaged in research work on error compensation in CNC machines and part quality improvement in Fused Deposition Modelling. Currently he is with PDPM IIITDM Jabalpur as Associate Professor and Dean (Students).

He has more than 65 publications to his credit, published in International peer reviewed journals of repute, National and International conferences in India and abroad. He has been a resource person and delivered invited lectures, chaired scientific sessions in several National and International Conferences, STTP’s and QIP programs. His research interest extends from Geometric Modelling, CAD/CAM Integration, Incremental Sheet forming, Computational geometry, Rapid Prototyping & Tooling, Incremental sheet forming to Nano Technologies in Manufacturing.

Abstract

Additive Manufacturing, its Application and Data Preparation: What is Additive Manufacturing and why it requires interdisciplinary research would be discussed. Additive Manufacturing technology has grown enough and become commercially available even for metal part printing. This talk will explore what are the challenges are still faced by the AM techniques still to become a widely accepted alternative manufacturing process. Basic principle, challenges and applications in interdisciplinary areas such as biomedical implants, micromanufacturing and architectural models would be presented.

Additive manufacturing requires contour information of the desired geometric model, for each layer, in the form of CLI file. To retrieve contour data at successive layer height, first geometric model has been tessellated i.e. piecewise approximated with triangular surfaces and stored in STL file format. Then intersection of these triangles has been found with a plane at specific layer height. These intersection points are arranged in logical sequence to form closed contour and then written in CLI file format which has been further used for additive manufacturing.

Here STL format, defects in STL file and their repair methods would be discussed. Further procedure to obtain contour data from STL file would also be presented.