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Summary:
In this report we will discuss different methods of rapid prototyping. Advantages, disadvantages of those methods and available machines. ... Rapid prototyping assists this process. ... Rapid prototyping was first introduced with stereolithography from a 3-D system in 1988. Since then there are many types of rapid prototyping in use. ...
Different methods of rapid prototyping:
There are several methods available in the market for rapid prototyping. We will discuss the most widely known methods. ... (STL file is an industry standard interface between 3-D CAD solid models and the rapid prototyping system). ...
Models for form, fit, or function
Rapid turnaround of design iterations
Manufacturing problem early identification
Low-cost prototype fabrication
Streamlined mould and pattern making
Fused deposition modelling (FDM):
This process consist of 3-d modeller, protoslice software, and silicon Graphics workstation. ...
SLC MACHINE
Advantages of SLS:
Ability to work with variety of materials
No post curing
Eliminates the nedd of external support
Disadvantages
Densities
Rough surface finish
Difficulty in changing setup
A schematic drawing SLS
Case study:
For instance, we have been able to save 14 weeks of production time for Ford in the development of the new pipe by using the SLS rapid prototyping process rather than the traditional tool making route, which can be very time consuming and costly. ...
The ability of rapid prototyping to enable companies to go straight from prototyped parts to final production, avoiding pre-production tooling, has got to be a major advantage to those businesses continually seeking faster design-to-market times and leaner, more efficient manufacturing structures. ...
Laminated object manufacturing(LOM)
In this method of rapid prototyping the process is started with the sliced data of 3-D model created on CAD software. ...
However, testing the coolant distribution system, using traditional methods, is time consuming, expensive and occasionally unreliable. Using cast components on a test bench, as with most existing methods is often only possible at the later stages of a project and the test adaptations - runners for sensors and cut-outs for optical systems - may compromise the test data. ...
A total project cost of only $23,000 - including data conversion, part orientation, build time, post-processing, and delivery - resulted in significant cost savings over traditional methods. ...
Conclusion:
To meet the productivity challenges of present era, the rapid prototyping would be a necessary element of the production system. ... This was one of the leading methods cited for coping with labour shortages, and the method claimed to be most effective.
Approximate Word count = 2224
Approximate Pages = 8.9
(250 words per page double spaced)
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