The Webinar and the Resource Person:-
A one day National Webinar was held on the 24th of September, 2020 on the Topic “Additive Manufacturing”. The resource person invited for this event was Dr. V. Vidyaa, an excellent professional in the fields of teaching and research. Dr.Vidyaa received her B.E in Mechanical Engineering from Rajalakshmi Engineering College, Chennai in the year 2007. She has completed her M.E Computer Integrated Manufacturing from the College of Engineering, Guindy under Anna University in the year 2012, and her Ph.D. from Anna University. Her Ph.D. work is based on Design And Performance Evaluation Of Additively Manufactured Metal And Polymer Based Microgrippers, which is a BRNS project, and the end products are used in BARC. Based on her research work she has published 14 papers in various conferences and journals. She has one granted patent and filed 3 Indian patents. She holds 5 prestigious awards and teaching experience of more than 9 years. Currently working as Assistant Professor and Nodal Officer for PMKVY courses in the Department of Mechanical Engineering, Jawahar Engineering College, Chennai and she is also an editor for companies based on China, Korea, and the UK.
Topics covered:-
- Overview of Additive Manufacturing technology and trends
- Definition of Additive Manufacturing
- Subtractive vs Additive Manufacturing, Disadvantages of Subtractive Manufacturing paves way for additive manufacturing
- Process of Layer Manufacturing – 4 planning tasks
- orientation optimization
- support design
- slicing
- tool-path/scanning-path planning
- Input will be a “.stl” file in Additive Manufacturing
- Types of Additive Manufacturing techniques- Liquid-based, Powder-based, Solid-based techniques.
- Major techniques discussed using solid concepts videos and schematic representation
- Fused Deposition Modelling
- Stereolithography
- Multijet/Polyjet Modelling
- Selective Laser Sintering
- Electron Beam Melting
- Laminated Object Manufacturing
- Direct Metal Laser Sintering
- Selection of suitable Additive Manufacturing Techniques
- Techniques used for creating layers
- Techniques of bonding the layers together
- Speed
- Layer thickness
- Range of materials
- Accuracy
- Cost
- Applications of 3D – Printing
- Touch and Feel
- Form, Fit, and Function
- Wind Tunnel Testing
- Validation of Invention
- Patterns for Casting
- Direct Tooling
- Case study
- Fabrication of Micro-grippers
- Overview of the design
- Selection of Additive Manufacturing process
- Design of the Micro-grippers
- Gripping hole
- Flexure
- Gripping arm
- Hexagonal arm
- Fabricated Micro-grippers
- Characterization and testing of Additive Manufacturing products
- Micro Scale Applications of Additive Manufacturing
Comments from the Participants:-
- “So nice I got clear view of additive manufacturing and thanks who created this webinar 🙏“– Padmanaban
- “Great webinar”– Saimadhu Polepalli
- “Happy to attend more webinar in future”– Priya. V
- “Useful webinar”– Laavanya P