Questions and Answers
What is Additive Manufacturing (AM)?
A process by which digital 3D design data is used to build up a component in layers by depositing material.
Who invented Stereolithography?
Charles Hull
The earliest 3D printing technologies were developed in the 1980s.
True
Which of these is a reason for the growing importance of Additive Manufacturing?
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What term is synonymous with Additive Manufacturing?
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What is primarily deposited in layers during the AM process?
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Charles Hull invented __________ in 1983.
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What is a challenge in CNC machining?
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Study Notes
Introduction to Additive Manufacturing (AM)
- Additive Manufacturing (AM) involves creating components by depositing material layer by layer from digital 3D design data.
- It originated as Rapid Prototyping (RP) technologies in the 1980s for developing prototypes cost-effectively.
Historical Milestones
- 1983: Charles Hull invents Stereolithography (SLA), the first technology enabling solid object creation from CAD/CAM files using ultraviolet laser.
- AM has evolved to encompass various processes known as rapid prototyping and 3D printing.
AM Applications Timeline
- Significant evolutions and applications of AM technologies have been noted over the years, impacting various industries.
Distinction Between AM and CNC Machining
- AM differs from CNC machining in terms of material use, speed, complexity, accuracy, geometry, and programming.
- CNC machining uses subtractive methods, while AM builds components additively.
Subtractive vs. Additive Manufacturing
- Subtractive manufacturing methods, like injection molding and CNC machining, involve removing material to create parts.
- Challenges in CNC machining include deep cavities, undercuts requiring complex machinery, and machining sharp internal features.
Advantages of Additive Manufacturing
- Enhanced automation capabilities and the extensive availability of CAD/CAM software contribute to the growth of AM.
- There's an increasing library of printable materials, making AM an attractive solution in modern manufacturing.
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Description
This quiz covers the fundamental concepts of Additive Manufacturing as presented in Unit 1. Learn about the significance, processes, and implications of AM technology, referencing key reports and insights. Enhance your understanding of this innovative manufacturing approach.
