3D Printing Technology Introduction to 3D Printing 3D printing is a ...
Presentation on 3D Printing Technoilogy
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Transcript of Presentation on 3D Printing Technoilogy
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TECHNICAL SEMINAR
ON
3D PRINTING TECHNOLOGY
SUBMITTED BYS.SHASHANK REDDY
12K41A0476ECE-B
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CONTENTS• What is 3D printing?• General Principles• Types of 3D printers• Applications• Challenges• Conclusion• Reference
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WHAT IS 3D PRINTING?
• For methods of applying a 2D image on a 3D surface we go for 3D printing.
• Additive manufacturing or 3D printing is a process of making a three- dimensional solid object of virtually any shape from a digital model. 3D printing is achieved using an additive process, where successive layers of material are laid down in different shapes.
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• ADDITIVE MANUFACTURING The term additive manufacturing refers to technologies
that create objects through a sequential layering process. Objects that are manufactured additively can be used anywhere throughout the product life cycle.
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GENERAL PRINCIPLES
• Modeling
• Printing
• Finishing
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MODELING• Additive manufacturing takes virtual blueprints from computer aided design (CAD) or animation modeling software and "slices" them into digital cross-sections for the machine to successively use as a guideline for printing.
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PRINTING• To perform a print, the machine reads the design and lays Down successive layers of liquid, powder, or sheet material to build the model from a series of cross sections. • These layers, which correspond to the virtual cross sections from the CAD model, are joined together or automatically fused to create the final shape. • The primary advantage of this technique is its ability to create almost any shape or geometric feature.
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FINISHING• Though the printer-produced resolution is sufficient for many applications, printing a slightly oversized version of the desired object in standard resolution, and then removing material with a higher-resolution subtractive process can achieve a higher-resolution.
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TYPES OF 3D PRINTERS
• Selective laser sintering (SLS)• Stereolithography (SLA)• Fused deposition modeling (FDM)• Laminated object manufacturing (LOM)
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SELECTIVE LASER SINTERING (SLS)
• 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.
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STEROLITHOGRAPHY• 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.
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STEROLITHOGRAPHY(Cont…)
• 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.
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FUSED DEPOSITION MODELING
• Fused deposition modeling (FDM) is an additive manufacturing technology commonly used for\ modeling, proto typing and production applications
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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.
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APPLICATIONS
• Prototyping• Modeling• Custom parts• Design• Research
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CHALLENGES FACING BY 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.
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CONCLUSION• Nothing communicates ideas faster than a three-dimensional part or model. With a 3D printer you can bring CAD files and design ideas to life – right from your desktop. • Test form, fit and function – and as many design variations as you like – with functional parts.
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REFERENCE• www.google.com• www.wikipedia.com