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Rapid Prototyping Techniques Overview

Stereolithography techniques in rapid prototyping . along with the application and case studeis related to rapid prototyping. A ppt presentation for the subject Rapid prototyping and tooling which is an elective for mechanical engineering

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Maheswaran Muthaiyan
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121 views16 pages

Rapid Prototyping Techniques Overview

Stereolithography techniques in rapid prototyping . along with the application and case studeis related to rapid prototyping. A ppt presentation for the subject Rapid prototyping and tooling which is an elective for mechanical engineering

Uploaded by

Maheswaran Muthaiyan
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PPTX, PDF, TXT or read online on Scribd
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RAPID PROTOTYPING

Rapid Prototyping An overview

The term rapid prototyping (RP) refers to a class of technologies that can automatically construct physical models from Computer-Aided Design (CAD) data. The main advantage of the system is that almost any shape can be produced. Time and money savings vary from 50 90 %compared to conventional systems. Rapid prototyping techniques are often referred to solid free-form fabrication, computer automated manufacturing or layered manufacturing. The computer model is sliced into thin layers and the part is fabricated by adding layers on to of each other. Since 1988 more than twenty different rapid prototyping techniques have emerged.

Difference in Methods
Manufacturing method

Solid free-forming Typical layer thickness could be 0.05 0.15 method


mm

Rapid Prototyping

Solid

Paste

Liquid

Gaseous

Wir e
Melting & Resolidification Fused Layer Modelling Solidificatio n by Binder 3D Printing

Component Powder Foil

Paste Poly process Polyme rization

Chemical Reaction

Hea t Selective laser Sintering Melting & Resolidification Cutting & Gluing Layer laminated manuft Thermal Polyn

LCVD Light in frequency Lamp Solid ground curing

Cutting & Polymerizati on Solid foil polyn Seterolith ography

Holograph y

Laser Beam

Hologrphic interface solidification

Basic Process

CAD Model

Laser Scanner CMM

STL format

Verify video

Support materials

Stereolithography (SLA)

Stereolithography is the most widely used RP-technology. It can produce highly Accurate and detailed polymer parts. SLA was the first RPprocess, introduced in 1988 by 3D Systems Inc. SLA uses a low-power, highly focused UV laser to produce a three dimensional object in a vat of liquid photosensitive polymer.

SLA setup

Wind tunnel tests

Medicine

For Training Surgical Operations

Medicine Replacement of parts

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