3 d printing slide
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This document provides an overview of 3D printing technology. It discusses the history of 3D printing, which was developed in 1984 by Chuck Hull. It then explains the basic process of 3D printing, which involves modeling an object digitally, slicing it into layers, and printing it by laying down successive layers of material. The document outlines several common 3D printing methods like stereolithography, selective laser sintering, and fused deposition modeling. It also provides an example of using 3D printing to manufacture a poly(methyl methacrylate) cam shaft. In conclusion, the document discusses potential applications of 3D printing in fields like manufacturing, medical, aerospace, and more.
3 d printing slide
- 1. Presented by VAISHAKH B S 130 S8MB 3-D PRINTING FOR MASS PRODUCTION Guide Dr. Suresh K S Associate professor Department of Mechanical Engineering
- 2. Outline Introduction History How it work?? General principal Different method of 3-d Printing Manufacturing of PMMA cam shaft through rapid prototyping technology Conclusions References
- 3. Introduction 3D printing is a modern technology in which 3 dimensional objects are printed from digital data Three dimensional object is created by laying down successive layers of material 3D printing technology is also known as Additive manufacturing, where an object is created by adding layer by layer
- 4. History The 3D printing technology was first developed by Chuck Hull in 1984 He named the technique as Stereo lithography and obtained a patent for the technique in 1986 He also develop the STL format widely accepted for 3D printing
- 5. Stages of 3D printing
- 6. Modeling A 3D image of the item to be printed is produced by using a Computer Assisted Design(CAD) software. The 3D model files should be exported to the 3D printing machine in standard format .STL The exported file will be a mesh(series of triangles oriented in space)
- 7. Printing The STL file exported will be processed using slicing software. KISSlicer( Keep it simple slicer), Slic3r is an example of slicing software. It cuts the model into horizontal slices (layers), generates tool paths(G code files) for the movement of print heads. Printing of the model.
- 8. Finishing The finishing work depends on the method which the 3D model is manufactured.
- 9. Different Methods • Stereo lithography • Selective laser sintering (SLS) • Fused deposition modeling (FDM)
- 10. Stereolithography Stereolithography is a 3D printing technology. It employs liquid curable resign and an UV laser to builds parts. Using the UV laser beam the first cross section of the STL file is drawn in to the vat of photo polymer resign. The platform will be lowered so that the fresh layer of resin will cover the build surface The next layer is traced out curing and bonding the resin to the layer below The process is repeated layer by layer until the model is fully grown.
- 12. Selective laser sintering Selective laser sintering (DMLS) is an 3D printing technique that create metal parts powders of metal, alloy material such as stainless steel to create models. A pre-programed assembly will supply powder on the base platform to create a uniform layer of powder. A laser then draws a 2D cross section on the surface of building material by heating and fusing the material to a solid mass. Then the base platform will be lowered Then next layer of powder will be supplied The process will continue till the model is completed
- 14. Fused deposition modeling (FDM) • FDM is a 3D printing technique that uses thermoplastic materials to produce models. • Thin thread like spools of thermoplastic and support material are used to create each cross section of the product • The materials will be slowly extruded through the nozzle. • The nozzle will precisely place the material • After finishing the first layer the base platform will be moved down • Process is repeated till the model is completed
- 16. Manufacturing of PMMA Cam Shaft by Rapid Prototyping RP is an additive manufacturing process in which a three dimensional product or component is produced from a three dimensional design using computer aided design (CAD) software in a very short period of time. CAM shaft which produced through the existing ways which requires a lot of power, space, cost and time
- 17. Modification has to be done in SLS machine in order to adapt for the mass production
- 18. The strength of the laser beam is increased so increased amount of material can be increased They increase the number of laser tool so that an increased amount of cam shaft can be produced in a single layer
- 20. Under deep analysis they have selected poly (methyl methacrylate) PMMA instead of conventionally used cast iron. By using the 3D printing technology for the production of the cam shaft, it is able to gain the following advantages, (a) Increased productivity (b) Less time (c) Less space (d) No wastage of the materials
- 22. Rapid manufacturing Manufacturing through 3D printing found to be less expensive than other manufacturing. Advances in 3D printing technology have introduced materials that are appropriate for final manufacture
- 23. End use parts 3D printing is capable of building the most durable, stable, and repeatable parts in the industry, whose accuracy can be compared with injection molding.
- 24. Medical field Printing organs such as kidney, fingers, etc
- 25. House printing A chineese company winzoon built 10 houses in a day using large 3D printers
- 26. Aerospace Aerospace engineers rely on patented FDM Technology for prototyping, tooling and part manufacturing. In September 2014, SpaceX delivered the first zero-gravity 3-D printer On December 19, 2014,NASA emailed CAD drawings for a socket wrench to astronauts aboard the International Space Station (ISS), who then printed the tool using its 3-D printer
- 27. Conclusions 3D printing technology has the potential for the better manufacturing of products 3D printing has a lot of possible benefits to society, although the products created must be regulated. 3D printing technology can be effectively used for the mass production.
- 28. REFERENCES 1.Manufacturing of PMMA Cam Shaft by Rapid Prototyping 2014 Jaiganesh .V, Andrew anthony christopher 1, MugilanE2 2. Progress in Additive Manufacturing and Rapid Prototyping J.-P. Kruth , Katholieke Universiteit Leuven, Division PM,Belgium M.C. Leu* (2), New Jersey Institute of Technolgy, Mech. Eng. Dept USA T. Nakagawa (I), University of Tokyo, Inst. of Industrial Science, Japan. 3.Emphasizing the advantage of 3d printing technology in packaging design development and production in local industries Dr. Rania F. Mohamed Dr. Abeer S. Mahmoud 4.Wikipedia 5.youtube