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23ME0303 – 3D Printing
UNIT 1 INTRODUCTION

Need – Development of AM systems ൓ Challenges in AM – AM process chain – Impact of AM on Product Development – Virtual Prototyping- Rapid Tooling ൓ RP to AM – Classification of AM processes – Benefits Applications

UNIT 2 REVERSE ENGINEERING AND CAD MODELING

Basic concept- Reverse Engineering Architecture-Digitization techniques ൓ Model reconstruction ൓ Data Processing for Rapid Prototyping: Types of CAD Modelling Techniques, CAD model preparation, Data requirements ൓ Geometric modeling techniques: Wire frame, surface and solid modeling ൓ data formats for AM – Data interfacing, -Software for AM

UNIT 3 LIQUID BASED AND SOLID BASED ADDITIVE MANUFACTURING SYSTEMS

Steriolithography Apparatus (SLA): Principle, processes, advantages, limitations and applications. Direct Light Processing (DLP): Principle, processes, advantages, limitations and applications. Fused deposition Modelling (FDM): Principle, process variables, types, products, materials and applications. Wire plus arc additive manufacturing (WPAAM): Principle, process variables, types, products, materials and applications. Electron Beam Freeform Fabrication (EBFFF) Working Principles, details of processes, products, materials, advantages, limitations and applications. Case studies.

UNIT 4 POWDER BASED ADDITIVE MANUFACTURING SYSTEMS

Selective Laser Sintering &Melting (SLS & SLM): Principle, process, – materials, post processing, surface deviation and accuracy, Applications. Digital Laser Sintering (DMLS): Principle, process, – materials, post processing, surface deviation and accuracy, Applications. Electron Beam Melting: Processes, materials, products, advantages, limitations and applications. Fused Metal Deposition: Processes, materials, products, advantages, limitations and applications. ൓ Case Studies.

UNIT 5 ADDITIVE MANUFACTURING APPLICATIONS

Additive Manufacturing in Medical Applications – in Architecture and Building construction ൓in Food Industry ൓ in Aerospace Industry ൓ in Machinery and Automobile൓ in lifestyle and sports ൓ in material handling & robotics. Case studies.

Reference Book:

1.Gibson, I., Rosen, D.W. and Stucker, B., ൜Additive Manufacturing Methodologies:Rapid Prototyping to Direct Digital Manufacturing൝, Springer, 2021

2.Gebhardt, A., ൜Rapid prototyping൝, Hanser Gardener Publications, 2018

3.Liou, L.W. and Liou, F.W., ൜Rapid Prototyping and Engineering applications: A t**l box for prototype development൝, CRC Press, 2021

4.Hilton, P.D. and Jacobs, P.F., Rapid Tooling: Technologies and Industrial Applications, CRC press, 2020

5.Murthy R L, Precision Engineering in Manufacturing൝, New Age International Publishers, Chennai, 2020.

Text Book:

1.Chua, C.K., Leong K.F. and Lim C.S., ൜Rapid prototyping: Principles and applications൝, second edition, World Scientific Publishers, 2021

2.Kamrani, A.K. and Nasr, E.A., ൜Rapid Prototyping: Theory and practice൝, Springer, 2019

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