1. What is AM?
What is AM?

2. What is Additive Manufacturing
Process of joining materials to make objects from a 3D model
Different processes
Different modeling techniques/capabilities
Different end-uses
Different from traditional manufacturing (subtractive process)
Injection molding
CNC Machining
Plastic Forming/Joining
What is AM?

3. What is Additive Manufacturing
Traditional (subtractive) Manufacturing:
Top Down
Additive Manufacturing
Bottom Up (literally)
What is AM?

4. What is Additive Manufacturing
Used for
Fabrication
Rapid Prototyping
Direct Part Production
Useful when
Object needed does not exist
Object needed is heavily customized
Object needed is difficult to obtain
Used by
Airlines, Healthcare, Military (and many more)
What is AM?

5. Types of AM
What is AM?

6. Types of Additive Manufacturing
What is AM?

7. Types of Additive Manufacturing
Stereolithography
Focused UV light
Transform liquid photopolymers into solid form
Layer-by-layer production
Selective Laser Sintering (SLS)
Laser emitting infrared radiation
Fuses (sinters) powder material
Polymers, metals, ceramics, foundry sand, etc.
What is AM?

8. Types of Additive Manufacturing
Laser Cladding
Powder sprayed through nozzle into laser
Layer-by-layer production
Can create very dense, homogeneous structures
Laminated Object Modeling (LOM)
Stack thin, pre-cut sheets
One of the earliest forms of Additive Manufacturing
What is AM?

9. Types of Additive Manufacturing
Fused Deposition Modeling (FDM)
Stream of hot, viscous material (thin thermoplastics)
Layer-by-layer production
Filament is melted, deposited and then hardens
Inkjet Printing (IJP)
Micro-particle binder material
Powder bed
Micro-particles joined to powder
What is AM?

10. Types of Additive Manufacturing
Laser Metal Deposition (LMD)
Metal powder melted using laser
Forms a metallurgical bond
Shares elements: Stereolithography and Laser Cladding
Capable of processing complex metals
Layer-by-layer production
What is AM?

11. Types of Additive Manufacturing
What is AM?

12. Materials for Additive Manufacturing
Plastic
Fused Deposition Modeling
What is AM?

13. Materials for Additive Manufacturing
Metals
Laser Sintering
What is AM?

14. Materials for Additive Manufacturing
Sands and Powders
Laser Sintering and Inkjet Printing
What is AM?

15. Materials for Additive Manufacturing
Others
Ceramics, Food, Skin
What is AM?