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3d printing ppt
- 2. Printing process Printing is a process for reproducing text and images, typically with ink on paper using a print press.
- 3. •GUTTENBERG’S PRINTING PRESS. •INVENTED IN 15TH CENTURY •USED MOULDS MADE OF BRASS
- 4. Invention of first printing machine FIRST PRINTING MACHINE WAS INVENTED BY JOHANNES GENSFLEISH IN 1803. THIS SUPERSEDED THE COST AND SLOW PRODUCTION.
- 5. Subtractive Manufacturin g• Creates a product by removing sections from a block of material. • Generates waste through the excess material that is removed. • Limited design capabilities.
- 6. Computerized Numerical Control (CNC) Machining • A method of Subtractive Manufacturing that removes sections from a block of material by cutting or drilling the excess material away.
- 7. Additive Manufacturing • Creates a product through adding materials to the object. • Adds material layer by layer until printing is finished. • Allows for complex and intricate designs.
- 8. 3D Printing • A method of Additive Manufacturing that adds material to an object layer by layer to create the final product.
- 9. 3D printing Imagine a near future in which a device connected to your desktop prints a SOLID OBJECT!!!!!! We can have tangible goods and intangible services delivered over the INTERNET.
- 10. Different methods Selective laser sintering (SLS) Stereolithography Fused deposition modeling (FDM) Laminated object manufacturing
- 11. SLS method Selective laser sintering (SLS) is an additive manufacturing technique that uses a high power laser (for example, a carbon dioxide laser) to fuse small particles of plastic, metal (direct metal laser sintering),ceramic or glass powders into a mass that has a desired 3- dimensional shape
- 12. STEREOLITHOGRAPH Y Stereolithography is an additive manufacturing process using a vat of liquid UV- curable photopolymer ”resin” and a UV laser to build parts a layer at a time.
- 13. STEREOLITHOGRAPH Y (contd). • CAD (Computer Assisted Design) Programs help users create STL Files for the 3D Printers to read. • STL (STereoLithography) file format – a file format which uses many little triangles to make a 3 dimensional plot of the objects intended surface.
- 14. FDM Fused deposition modeling (FDM) is an additive manufacturing technology commonly used for modeling, prototyping, and production applications
- 15. Laminated object manufacturing Laminated object manufacturing (LOM) is a rapid prototyping system developed by Helisys Inc. In it, layers of adhesive-coated paper, plastic or metal laminates are successively glued together and cut to shape with a knife or laser cutter.
- 16. Equipment types Dimension 3D printer
- 17. Specification of uPrint Build Envelope Size & Weight Layer Thickness Modeling Material Support Material Price 203 x 152 x 152 mm(8 x 6 x 6 in) 635 x 660 x 787 mm(25 x 26 x 31 in)76 kg (168 lbs) (with one .254 mm (.010 in) ABSplus in ivory only. Soluble only $14,900 (€11.900)
- 18. What is ABSplus? ABSplus is a production-grade thermoplastic that gives models the ability to perform just like production parts in real-world functional testing.
- 19. Technique
- 21. The PRINTING CYCLE a) Preparation : • Once you click “3D print “ from Z-print , the printer initiates the pre build routine. • First it warms the air inside the printer and creates optimum operating environment. • At the same time , it fills the ‘Build Chamber’ with 1/8th inch layer powder ( so that finished parts rest on it).
- 22. The PRINTING CYCLE b) Printing : • Once the pre-build is complete , the printer begins printing the layers created in the Z-print software. • The machine deposits 0.1mm thick layer of powder from the ‘Hopper”. • The ‘Print Carriage’ then moves across this layer depositing the binder.
- 23. The PRINTING CYCLE • The binder solidifies the powder in that cross section of the model. • The piston below the ’Build Carriage ’ lowers the powdered bed by 0.1mm , preparing the next layer. • The process repeats until the model is complete
- 24. The PRINTING CYCLEc) Depowdering/Recycling : • When finished the model, it is suspended in the powder to cure. • At the end of curing time , the machine then automatically removes most of the powder around the model by vaccum pressure. • The loose powder is pneumatically conveyed through the system for reuse.
- 25. 3D Printing : The Chemical Process • A platform which serves as the base of the object is submerged into a vat of polymers. • UV light cures and hardens these polymers with each pass over the object. • Once a pass is finished, the platform lowers slightly into the vat, allowing more uncured polymers to cover the object.
- 26. Applications of 3D Printing • Prototyping • Modeling • Custom parts • Design • Research
- 27. 3D Printing and Sustainability • 3D printing with non harmful chemicals. • 3D printing generates almost no waste during manufacturing, and does not require lubricants. • 3D Printing can be used to create replacement parts.
- 29. Challenges Facing 3D Printing • Intellectual property rights of the 3D Printer users. • Nearly anything can be printed by 3D Printers and this is a troubling prospect if criminals use 3D Printers to create illegal products.
- 30. In Conclusion • 3D printing is an expanding technology which may soon start an industry in which everyone has the possibility of being a manufacturer. • 3D printing has a lot of possible benefits to society, although the products created must be regulated.