PTCME339 Additive Manufacturing Syllabus:

PTCME339 Additive Manufacturing Syllabus – Anna University Part time Regulation 2023

COURSE OBJECTIVES:

 To introduce the development of Additive Manufacturing (AM), various business opportunities and applications
 To familiarize various software tools, processes and techniques to create physical objects that satisfy product development / prototyping requirements, using AM.
 To be acquainted with vat polymerization and direct energy deposition processes
 To be familiar with powder bed fusion and material extrusion processes.
 To gain knowledge on applications of binder jetting, material jetting and sheet lamination processes

UNIT I INTRODUCTION

Overview – Need – Development of Additive Manufacturing (AM) Technology: Rapid Prototyping- Rapid Tooling – Rapid Manufacturing – Additive Manufacturing. AM Process Chain- ASTM/ISO 52900 Classification – Benefits. Applications: Building Printing – Bio Printing – Food Printing-Electronics Printing. Business Opportunities and Future Directions – Case studies: Automobile, Aerospace, Healthcare.

UNIT II DESIGN FOR ADDITIVE MANUFACTURING (DfAM)

Concepts and Objectives – AM Unique Capabilities – Part Consolidation – Topology OptimizationGenerative design – Lattice Structures – Multi-Material Parts and Graded Materials – Data Processing: CAD Model Preparation – AM File formats: STL-Problems with STL- AMF Design for Part Quality Improvement: Part Orientation – Support Structure – Slicing – Tool Path Generation – Design rules for Extrusion based AM.

UNIT III VAT POLYMERIZATION AND DIRECTED ENERGY DEPOSITION

Photo polymerization: Stereolithography Apparatus (SLA)- Materials -Process – top down and bottom up approach – Advantages – Limitations – Applications. Digital Light Processing (DLP) – Process – Advantages – Applications. Continuous Liquid Interface Production (CLIP)Technology. Directed Energy Deposition: Laser Engineered Net Shaping (LENS)- Process – Material Delivery – Materials -Benefits -Applications.

UNIT IV POWDER BED FUSION AND MATERIAL EXTRUSION

Powder Bed Fusion: Selective Laser Sintering (SLS): Process – Powder Fusion Mechanism – Materials and Application. Selective Laser Melting (SLM), Electron Beam Melting (EBM): Materials – Process – Advantages and Applications.
Material Extrusion: Fused Deposition Modeling (FDM)- Process-Materials -Applications and Limitations.

UNIT V OTHER ADDITIVE MANUFACTURING PROCESSES

Binder Jetting: Three-Dimensional Printing – Materials – Process – Benefits- Limitations – Applications. Material Jetting: Multijet Modeling- Materials – Process – Benefits – Applications. Sheet Lamination: Laminated Object Manufacturing (LOM)- Basic Principle- Mechanism: Gluing or Adhesive Bonding – Thermal Bonding- Materials-Application and Limitation.

TOTAL: 30 PERIODS

ADDITIVE MANUFACTURING LABORATORY

Experiments
1. Modelling and converting CAD models into STL file.
2. Manipulation and error fixing of STL file.
3. Design and fabrication of parts by varying part orientation and support structures.
4. Fabrication of parts with material extrusion AM process.
5. Fabrication of parts with vat polymerization AM process.
6. Design and fabrication of topology optimized parts.

TOTAL: 30 PERIODS

Equipment required – lab
1. Extrusion based AM machine
2. Resin based AM machine
3. Mechanical design software
4. Open-source AM software for STL editing, manipulation and slicing.

COURSE OUTCOMES:

At the end of this course students shall be able to:
CO1: Recognize the development of AM technology and how AM technology propagated into various businesses and developing opportunities.
CO2: Acquire knowledge on process of transforming a concept into the final product in AM technology.
CO3: Elaborate the vat polymerization and direct energy deposition processes and its applications.
CO4: Acquire knowledge on process and applications of powder bed fusion and material extrusion.
CO5: Evaluate the advantages, limitations, applications of binder jetting, material jetting and sheet lamination processes.

TEXT BOOKS:

1. Ian Gibson, David Rosen, Brent Stucker, Mahyar Khorasani “Additive manufacturing technologies”. 3rd edition Springer Cham, Switzerland. (2021). ISBN: 978-3-030-56126-0
2. Andreas Gebhardt and Jan-Steffen Hötter “Additive Manufacturing: 3D Printing for Prototyping and Manufacturing”, Hanser publications, United States, 2015, ISBN: 978-1-56990-582-1.

REFERENCES:

1. Andreas Gebhardt, “Understanding Additive Manufacturing: Rapid Prototyping, Rapid Manufacturing”, Hanser Gardner Publication, Cincinnati., Ohio, 2011, ISBN :9783446425521.
2. Milan Brandt, “Laser Additive Manufacturing: Materials, Design, Technologies, and Applications”, Woodhead Publishing., United Kingdom, 2016, ISBN: 9780081004333.
3. Amit Bandyopadhyay and Susmita Bose, “Additive Manufacturing”, 1st Edition, CRC Press., United States, 2015, ISBN-13: 978-1482223590.
4. Kamrani A.K. and Nasr E.A., “Rapid Prototyping: Theory and practice”, Springer., United States ,2006, ISBN: 978-1-4614-9842-1.
5. Liou, L.W. and Liou, F.W., “Rapid Prototyping and Engineering applications: A tool box for prototype development”, CRC Press., United States, 2011, ISBN: 9780849334092.