View
215
Download
0
Category
Preview:
Citation preview
8/13/2019 Presentation on RP
1/19
ASeminar on
“INTRODUCTION TO RAPID PROTOTYPING”
Presented by:Puneet Mathur
M.Tech (M/C Design)Roll no.:211345
DEPARTMENT OF MECHANICAL ENGINEERING
NATIONAL INSTITUTE OF TECHNOLOGY,KURUKSHETRA (HR)
8/13/2019 Presentation on RP
2/19
ContentsIntroduction Why Rapid Prototyping?
Methodology of Rapid Prototyping
Rapid Prototyping Techniques
Applications of Rapid Prototyping
Advantages of Rapid Prototyping
Limitation of Rapid Prototyping
Future Developments
Conclusion
References
8/13/2019 Presentation on RP
3/19
INTRODUCTIONRapid Prototyping (RP) can be defined as a group of techniques usedto quickly fabricate a scale model of a part or assembly using three-dimensional computer aided design (CAD) data.
The word "rapid" is relative: construction of a model withcontemporary methods can take from several hours to several days,depending on the method used and the size and complexity of themodel.
8/13/2019 Presentation on RP
4/19
Why Rapid Prototyping?The reasons of Rapid Prototyping areTo increase effective communication.
To decrease development time.
To decrease costly mistakes.
To minimize sustaining engineering changes.
To extend product lifetime by adding necessary features andeliminating redundant features early in the design
8/13/2019 Presentation on RP
5/19
Methodology of Rapid Prototyping A cad model is constructed and then converted to STL format.
The RP device processes the STL file y creating sliced layers ofthe model. The resolution of future model directly depends onquantity of the layers or, since all layers must have identicalthickness , on the layer’s thickness.
The first layer of physical model is created , the model is thenlowered by the one layer thickness ,and the process is repeateduntil completion of the model;
The model and supports are removed the surface of the model is
then finished and cleaned.
8/13/2019 Presentation on RP
6/19
Rapid Prototyping Techniques Stereolithography
Laminated Object Manufacturing
Selective Laser Sintering
Fused Deposition Modeling
Ground Curing
8/13/2019 Presentation on RP
7/19
STEREOLITHOGRAPHY
8/13/2019 Presentation on RP
8/19
Laminated Object Manufacturing
8/13/2019 Presentation on RP
9/19
Selective Laser Sintering
8/13/2019 Presentation on RP
10/19
Fused Deposition Modeling
8/13/2019 Presentation on RP
11/19
Solid Ground Curing
8/13/2019 Presentation on RP
12/19
Applications of Rapid PrototypingPrototyping
Rapid Tooling
Rapid Manufacturing
8/13/2019 Presentation on RP
13/19
Advantages of Rapid PrototypingHelps you to build a better product.
Often, helps you build a less expensive product.
Facilitates client and team involvement.
Focuses on the learner and usability
8/13/2019 Presentation on RP
14/19
Limitation of Rapid Prototyping Scalability for large product
Lacks specificity: defining what’s on every screen.
Lacks clear sign-off points.
“Iterativeness” or How do you know when you’redone?
8/13/2019 Presentation on RP
15/19
Future Developments Rapid prototyping is starting to change the way companies designand build products
By using faster computers, more complex control systems, andimproved materials, RP manufacturers are dramatically reducing
build time.
By using faster computers, more complex control systems, andimproved materials, RP manufacturers are dramatically reducing
build time.
One future application is Distance Manufacturing on Demand, acombination of RP and the Internet that will allow designers toremotely submit designs for immediate manufacture.
8/13/2019 Presentation on RP
16/19
Conclusion Finally, the rise of rapid prototyping has spurred
progress in traditional subtractive methods as well.
Advances in computerized path planning, numeric andaccuracy of machining. Rapid control, and machinedynamics are increasing the speed prototyping willnot make machining obsolete, but rather complement
it.
8/13/2019 Presentation on RP
17/19
References Steven Ashley, "Rapid Prototyping is Coming of Age," MechanicalEngineering July 1995: 63
www.usabilitynet.org/tools/prototyping.htm
www.efunda.com
http://en.wikipedia.org/wiki/Rapid_prototyping
www.asel.udel.edu/rapid/helmet/
http://www.lf.psu.edu/
8/13/2019 Presentation on RP
18/19
Thank you for your precious time…
Presented by:Ankush Sharma
&Puneet Mathur
VIII SEM
8/13/2019 Presentation on RP
19/19
Recommended