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ashok mule rapid prototyping presentation
- 1. Powerpoint Templates Page 1 PowerpointTemplates RAPID PROTOTYPING PRESENTED BY ASHOK A MULE IND023
- 2. Powerpoint Templates Page 2 INDEX •Introduction of Rapid Prototyping • Basic principle and methodology • Various Techniques of RP • Applications of RP • Advantages and Disadvantages • Future scope for development
- 3. Powerpoint Templates Page 3 INTRODUCTION •Prototype – A replica or model for testing conceptualized design • Manual fabrication and testing is now old practice • New quick technique- Rapid Prototyping • Definition- A group of techniques used to quickly fabricate a scale model of a part or assembly using three-dimensional computer aided design (CAD) data. • Characteristics of RP: 1.A RP model free-form manufacturing 2.layered manufacturing method (i.e. layer by layer additive process)
- 4. Powerpoint Templates Page 4 Comparisonof conventional machining with RP
- 5. Powerpoint Templates Page 5 BASICPRINCIPLE OF WORKING OF RP Basic principle involves 5 steps: • Creation of the CAD model of the design • Conversion of the CAD model to STL format • Slicing the STL file into 2-D cross-sectional layers • Layer by layer construction • Cleaning and finishing the model
- 6. Powerpoint Templates Page 6 Creationof the CAD model of the design •Drafting 3-D model on software •Softwares include CATIA,PRO-E, Auto-Desk etc
- 7. Powerpoint Templates Page 7 Conversionof the CAD model to STL format. •STL (Stereolethography format) •Surfaces are divided into no. of triangles •Fixing coordinates of the vertices of all triangular parts
- 8. Powerpoint Templates Page 8 Slicingthe STL file into thin cross-sectional layers •Slicing the model in layers from 0.01 to 0.7mm •Generating an auxiliary structure to support the model during the build.
- 9. Powerpoint Templates Page 9 Layerby layer construction of model •Building one layer at a time from polymers, paper, or powdered metal •Layer by Layer completes the whole model
- 10. Powerpoint Templates Page 10 Cleaningand finishing the model • Removing the prototype from the machine • Detaching any supports • Cleaning, finishing etc
- 11. Powerpoint Templates Page 11 Completeprocess of RP
- 12. Powerpoint Templates Page 12 VARIOUSTECHNIQUES OF RP • Stereo-lithography Process • Selective Laser Sintering(SLS) • Laminated Object Manufacturing(LOM) • Fused Deposition Modeling(FDM) • 3-D Ink-Jet Printing
- 13. Powerpoint Templates Page 13 StereolithographyProcess • Patented in 1986 • Solidification of liquid photosensitive polymers when exposed to UV light • Exposing next layer to UV with lowering platform by elevator
- 14. Powerpoint Templates Page 14 SelectiveLaser Sintering(SLS) • Patented in 1989 •Powdered materials like nylon, elastomers are used • Sintering of powder takes place when exposed to UV
- 15. Powerpoint Templates Page 15 LaminatedObject Manufacturing(LOM) • Developed in 1985 by Hydronetics in Chicago • Paper laminated with heat-activated glue is used • A focused laser cuts the outline of the first layer into the paper
- 16. Powerpoint Templates Page 16 FusedDeposition Modeling(FDM) • Developed in 1988 by S. Scott Crump • Feeding thermoplastic filament wire • Deposition of heated plastic layer by layer to complete the part
- 17. Powerpoint Templates Page 17 3-DPrinting • Developed in MIT & licensed to Soligen Corporation, • An ink-jet printing head selectively deposits(prints) a binder fluid to fuse the powder together in the desired areas.
- 18. Powerpoint Templates Page 18 APPLICATIONSOF RP • Engineering • Complex parts of Aerospace industries • Rapid Tooling • Architecture • Medical Applications • Tooth and bone implants • Hearing instruments • Arts and Archaeology • Statues and ornaments
- 19. Powerpoint Templates Page 19 ADVANTAGES& DISADVANTAGES Advantages: • Faster production of parts • Less expensive • Helps in quick testing of product • Fast error elimination and assists product developments • Low labor cost • Reduction in material cost, waste disposal cost, inventory cost, material transportation cost • Quick design modification • Better communication between the designer and user Disadvantages: • High machinery cost • Unsuitability to very large product
- 20. Powerpoint Templates Page 20 Futurescope for developments in RP • Improving speed • Improved accuracy and surface finish. • Use of metal and composite materials • Increasing size capacity • Distance Manufacturing on Demand(being developed by Researchers at UC-Berkeley)
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