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Rapid prototyping and modelling
This document provides an introduction to rapid prototyping and modeling. It defines rapid prototyping as using manufacturing techniques based on dispersed accumulation forming to quickly produce preliminary versions of devices from which other forms are developed. The document outlines several rapid prototyping techniques such as stereolithography, laminated object manufacturing, selective layer sintering, fused deposition modeling, and ink jet printing. It also discusses the history and principles of rapid prototyping and its applications in rapid manufacturing, tooling, and molding.
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Rapid prototyping and modelling
- 1. Rapid Prototyping andModelling By Amar Vamsi Krishna 4th Year B.E, Mechanical Engineering 1RN11ME007 Phase-1: Introduction, Principle, Family and Features
- 2. What is RapidPrototyping? 2 Dept. of Mechanical Engineering, RNSIT 2015 Rapid Prototyping and Modelling • RAPID: (adj)happening in a short time or at a great rate • PROTOTYPE : (n) a first or preliminary version of a device or vehicle from which other forms are developed (v) make a prototype of (a product)
- 3. What is RapidPrototyping? 3 Dept. of Mechanical Engineering, RNSIT 2015 Rapid Prototyping and Modelling
- 4. What is RapidPrototyping? 4 Dept. of Mechanical Engineering, RNSIT 2015 Rapid Prototyping and Modelling • Manufacturing Technique based on DISPERSED ACCUMULATION FORMING
- 5. Looking down thememory lane 5 Dept. of Mechanical Engineering, RNSIT 2015 Rapid Prototyping and Modelling • 1982: US patent no 473901 : Blanther – Layered Manufacturing – 1950s:100s of RPM patents • 1986: Stereolithography- Charles W Hull (US Patent No:4575330) – 1988: 3D System Corp, USA- First RP machine (SLA- 250) » 274 patents in USA during 1986-1998 • GARPA(Global Alliance of Rapid Prototyping Associations) set up
- 6. Division of FormingTechnologies 6 Dept. of Mechanical Engineering, RNSIT 2015 Rapid Prototyping and Modelling Removal Forming Forced Forming Dispersed-Accumulated Forming Growth Forming
- 7. Principle of RapidPrototyping? 7 Rapid Prototyping and Modelling • RPM Digital Information Process + Digital Physical Process = Digital Forming Process Dept. of Mechanical Engineering, RNSIT 2015
- 8. Rapid Prototyping andModelling Family 8 Dept. of Mechanical Engineering, RNSIT 2015 Rapid Prototyping and Modelling • Rapid Prototyping (RP) • Rapid Manufacturing • Rapid Tooling(RT) • Rapid Moulding(RM) • Bio-Manufacturing(BM)
- 9. 9 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Rapid Prototyping High Energy Beam Stereolithography Laminated Object Manufacturing Selective Layer Sintering Jetting/Extrusion Fused Deposition Modelling Ink Jet Printing 3D Printing
- 10. 10 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM Stereolithography •He-Cd/Argon/Solid State Laser (dozens to hundreds of mW) •Wavelength: 320 nm to 370nm •Charles W Hull : 1986 •Free Radical light cured resin, cat-ion light cured resin and mixed type. •Composition of resins: Polymerizable Prepolymer, active monomer, photoinitiator and auxiliaries
- 11. 11 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM
- 12. 12 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM Laminated Object Manufacturing •Uses laser or Knife to cut patterns on thin layers and then piles the layers together. •Machine components: Paper feeding and rolling implement, heat presser, altimeter sensors, X-Y scanning system, mobile elevated workbench •Michael Feygin: 1986 •Structural Materials: Paper or polymeric films
- 13. 13 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM Selective Layer Sintering •Piling up layers of laser sintering metal or non metallic powder •Machine Constituents: Laser(CO2 or YAG with near IR band wavelength of 1.06 micrometers) of power 50W -200W, optical system, function generator, a hopper, a spreading system and an industrial PC. •Developed by CR Dechard in University of Texas, Austin, 1989 •Forming materials: Wax powder, Metal Powder, polystyrene, plastics like ABS and PLA, Coated Ceramic etc
- 14. 14 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM
- 15. 15 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM Fused Deposition Modelling •Most popular •This is colloquially called the 3D printer •Extrusion of slurry like viscous molten materials and depositing them on a base or a previously formed part •Developed by Dr. Scott Crump in 1988 •Commercialized by Stratasys Corp, USA •Low cost Desktop printers and Do It Yourself kits from companies like Makerbot •An evolving community is growing rapidly
- 16. 16 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM
- 17. 17 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM Ink Jet Printing •Builds parts by shooting/jetting material droplet on-demand from piezoelctric ink-jet nozzles. •High forming velocity can be achieved by using a linear array of nozzles •Forming materials are wax, wax-like thermoplasts •Strength: >Wax; < Technical Thermoplatics
- 18. 18 Dept. of MechanicalEngineering, RNSIT 2015 Rapid Prototyping and Modelling Techniques of RPM 3D Printing •Uses ink-jet printing nozzles to jet binder droplets onto solid powder surface. •After one layer of powder, a binder is sprayed and again one more layer of powder is spread. •Invented by Prof. Sachs in MIT, USA •Commercialized by Soligen Corp, USA under the name Direct Shell Production Casing.
- 19. Features of RPM •Direct Digital Control by CAD models combined with CAM. • High degree of FLEXIBILITY. • Can be integrated with information process: Non homogeneous, gradient and porosity • More Rapid and Less Overheads • Highly integrated compared to traditional NC Dept. of Mechanical Engineering, RNSIT 2015 19 Rapid Prototyping and Modelling
- 20. Conclusions This presentation isthe first of the three part series. It deals with the introduction, principles, types and features of Rapid Prototyping and Modelling. It presents the existing technology and not the current research. The further presentations will contain the applications of RPM, the difficulties, new progress, developing trends and the possible areas of research in this dynamic, integrated, futuristic and cutting edge technology. Dept. of Mechanical Engineering, RNSIT 2015 20 Rapid Prototyping and Modelling
- 21. References These are thefollowing set of non exhaustive sources of information for this presentation. • http://en.wikipedia.org/wiki/3D_printing • Rapid Prototyping and Manufacturing Technology: Principle,Representative Technics, Applications, and Development Trends,TSINGHUA SCIENCE AND TECHNOLOGY ISSN 1007-0214 01/38 pp1-12 Volume 14, Number S1, June 2009 • http://www.padtinc.com/blog/the-rp-resource/rapid-prototyping- technology-animations for the gifs • www.custompart.net • Marvel comics for the image of Lizard from the Amazing Spiderman series. • Google image repository and YouTube videos . Dept. of Mechanical Engineering, RNSIT 2015 21 Rapid Prototyping and Modelling
- 22. That’s all folks Thankyou Questions ? Dept. of Mechanical Engineering, RNSIT 2015 22 Rapid Prototyping and Modelling