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Rapid prototyping application (What is rapid prototying (3D printing…
Rapid prototyping application
What is rapid prototying
Definition: is the group of technologies used to quickly fabricate a scale model of physical part or assembly using a 3D CAD data.
Technologies include: 1. 3D printing 2. CNC machines 3. Injection molding systems
Comparison: 1. For time, 3D printing is faster than CNC&Injection molding 2. CNC&Injection molding are for mass production 3. The material strength of CNC&Injection molding are harder than 3D printing 4. The manufacturing cost of 3D printing are less than CNC&Injection molding.
3D printing revolution
First developed in 1980s
why is rapid prototying a disruptive technology
is not economies of scale
it allows costumisation
On demand
Lead to:1. more competition from small firms 2. decentralized local production
Changes:
Efficiency
Medical sector
spare part industry
Apparel industry
democratize
decentralize
localize
Transportation
less economically feasible
Different types of RP machines
machining
3D printer
injection molding
How rapid prototyping has evolved
stereolithography-UV light and photo-ploymer
SLS-layser and polymer
Fused Deposition modeling-Extrusion of molten plastic
Application
prosthetic Hand/Leg
Bone,organ models constructed from CT scan
Dental industry