What is 3 d printing.docx
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What is 3D printing , How Does 3D Printing Work , Types of 3d printing , The History of 3D Printing , 3D Printing Technologies , Common manufactures of 3D printing , 3D Printing Materials , 3D Printing Common applications , Things can't be 3D Printed , By Eng. Osama Ghandour #WhatIs3DPrinting , #HowDoes3DPrintingWork , #TypesOf3dPrinting , #TheHistoryOf3DPrinting , #3DPrintingTechnologies , #CommonManufacturesOf3DPrinting , #3DPrintingMaterials , #3DPrintingCommonApplications , #ThingsCan'tBe3DPrinted , #ByEng.OsamaGhandour ,
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What is 3 d printing.docx
- 1. What is 3D printing ? 3D printing, also known as additive manufacturing, is the process of making three dimensional solid objects from a digital CAD file. The part is made up of multiple layers of material laid on top of each other to create the 3D object. These individual layers are known as slices, these slices show a thin cross-section of the model. Additive manufacturing as several significant advantages over other methods like subtractive manufacturing and injection Maudling as the part can include complex shapes, not easily achievable by other means. Plus the elements can consist of working mechanisms and movable parts without the need for assembly afterwards.
- 2. How Does 3D Printing Work? The process of making a part with 3D printing is simple. You need a CAD model that is suitably designed for the procedure. This model is then sliced using an application called a slicer. The slicer takes the file and slices the model into each individual layer. The slicer may also create the machine language, such as GCODE, which tells the machine what mechanical movements should be made to produce the layer. The slicer combines all of these layers into a single file which is then sent to the printer. Once the printer is ready, the machine starts to create each part, layer by layer. Depending on the technology used there are different ways in which the layers are formed. Once the printer has completed all the layers, the part can then be taken through a post-processing stage.
- 3. The History of 3D Printing: 3D Printing Technologies from the 80s to Today 1-stereolithography (SLA ( 2-SLS technology 3- Fused Deposition Modelling (FDM) 1980: first patent by japanese Dr Kodama Rapid prototyping 1984: Stereolithography by french then abandoned 1986: Stereolithography taken up by Charles Hull. 1987: First SLA-1 machine 1988: first SLS machine by DTM Inc then buy by 3D system 1990: First EOS Stereos system 1992: FDM patent to Stratasys 1993: Solidscape was founded 1995: Z Corporation obtained an exclusive license from the MIT 1999: Engineered organs bring new advances to medicine 2000: a 3D printed working kidney is created 2000: MCP Technologies (an established vacuum casting OEM) introduced the SLM technology 2005: Z Corp. launched Spectrum Z510. It was the first high-definition color 3D Printer on the market. 2006: An open source project is initiated (Reprap) 2008: The first 3D printed prosthetic leg 2009: FDM patents in the public domain 2009: Sculpteo is created 2010: Urbee is the first 3D printed prototype car presented 2011: Cornell University began to build 3D food printer. 2012: The first prosthetic jaw is printed and implanted 2013:“3 D printing” in Obama’s State of the Union speech 2015: Carbon 3D issues their revolutionary ultra-fast CLIP 3D printing machine 2016: Daniel Kelly’s lab announces being able to 3D print bone
- 4. Common manufactures of 3D printing 3D Printing Technologies 1-FDM/FFF - FUSED DEPOSITION MODELING/FUSED FILAMENT FABRICATION , 2-SLA – STEREOLITHOGRAPHY 3-SLS - SELECTIVE LASER SINTERING , 4-SLM – SELECTIVE LASER MELTING , 3D Printing Materials 1-PLA – 2-POLYLACTIC ACID , 3-ABS - ACRYLONITRILE BUTADIENE STYRENE , 4- NYLON , 5-METALS - STEEL, 6-TITANIUM AND MORE , 7- CARBON FIBRE , 8- PHOTOPOLYMER RESINS , 9- WAX .
- 5. Common applications Rapid prototyping Functional Prototyping Functional prototyping allows you to verify designs, test part functionality, and demonstrate an idea well before moving into production when time and cost for changes becomes prohibitive. Concept Modeling There is no better way to evaluate the merits of a new design than to bring it to life as a physical concept model. Low cost and quick to produce, precise concept models look and feel like the final product—ideal for presenting new items to key stakeholders early in the design process.
- 6. Common applications PRODUCTION PARTS Anatomical Models Serving a variety of tasks in the medical industry, including practice dummies, educational aids and preoperative planning, anatomical models are an integral element in efficient treatment and health care practices. Our 3D printing and Urethane Casting services open new possibilities for complex, anatomically-accurate models at less cost than traditional manufacturing methods. ECS Ducting Additive manufacturing offers powerful solutions for ECS ducts with design freedoms that lend to optimized, consolidated components. Create strong ECS ducting unrestrained by traditional manufacturing limitations, all while taking advantage of light-weighting possibilities.
- 7. Common applications PRODUCTION PARTS Housings & Enclosures Produce large, custom housings with seamless fits and integration of enclosure connections. Produce void-free, strong, water-tight or highly cosmetic parts with the right technologies and materials to deliver custom housings and enclosures to your specifications. Jigs & Fixtures These often overlooked, but critical components for quality production often require several cycles of design and prototyping to attain the required performance. 3D printing provides a substantially simplified and cost effective fabrication process for productivity, efficiency and quality.
- 8. Common applications MANUFACTURING TOOLING PARTS Composite Tooling Utilize 3D printing to create lightweight, agile, low-cost composite tools in days. Incorporate greater functionality and geometry complexity for light-weight layup tools, machining fixtures, trim tools and drill jigs. Forming Tools Reduce lead times to forming tools with additive manufacturing. Build tools in days with built-in porosity and increased tool complexity to reduce thermal mass and control thermal gradients. 3D printing’s innate design freedom allows engineers to design for the end product and make design changes quickly. Investment Casting Patterns Increase foundry business by making investment casting patterns more viable for your customers. 3D printed investment casting patterns significantly reduce lead times and eliminate high tooling costs. With excellent pattern accuracy and repeatability at less expense than conventional methods, the patterns translate to higher yields during casting.
- 9. Things can't be 3D Printed 1.Mass production 3D printers are limited in speed of production. You would have to buy hundreds of 3D printers at over the roof which is not feasible. If you are a business owner and plan to shift your production from conventional means of production to 3D printing, you might have to start with limited edition items and the products with low production runs. Otherwise, 3D print technology has not developed enough for mass production.
- 10. Things can't be 3D Printed 2. Objects Without Models This will be the biggest impediment of 3D printing. You could have the 3D printer with you. However, if you do not have the model of the object that you want to produce, it will be useless. Let us take an example; you want to print a broken part of your vacuum cleaner? Where do you start printing? You would need to be good in computer aided design and know the exact part that is broken. Some of the things that you will check include the dimensions of the part to be printed and the aesthetics of the part. These elements are hard to reproduce if you are not an expert in 3D printing. If you have no design with you, you cannot print anything. Moreover, the part that you would like to print should be suited for 3D printing. You cannot print items that have no flat parts or have very big overhangs. Due to the fact that you use a nozzle or a syringe to print the parts, it is not possible to print large hanging parts without the parts dropping in the course of printing.
- 11. Things can't be 3D Printed 3.Items That Require High Precision 3D printers come with limitations in terms of precision. The standard nozzle output is about 0.4 mm. Therefore, if you are planning to print something that is below 0.4mm, you will not get a useful item. 0.4mm is good for many of the consumer products today. However if you would like to replace very small parts such as a broken camera shutter or broken nylon gear in a camera, you will not be successful with 3D printing. There is a new technology called selective laser sintering used to produce very precise items. However, it is still not very effective in producing very small parts.
- 12. Things can't be 3D Printed 4.Not All Materials That Can Be Printed Just a few materials can be 3D printed. While technology is growing and many more materials might be used in the future, you cannot print many items as there is no appropriate material for it. Most of the printable materials are materials that can be brought to a semi-molten state so that they come out of the nozzle conveniently. Most of these materials are low temperature melting plastics, metals and several types of pastes. Beyond that, very few materials can be used
- 13. Things can't be 3D Printed 5. Tuning The Printer Is Hard It is easy to change 3D design on your desktop, but difficult to tune your 3D printer to meet the new requirements. Printing 3D objects requires extensive knowledge of software and algorithms. They are not consumer-friendly. You just need to mess a little with the settings and you get an item that is entirely different from what you intended. The hardware set up is also difficult and requires expertise. Therefore, it may not be possible to produce different items from time to time if it requires adjustments in your 3D printer. Several opportunities still abound for 3D printers. However, there is still so much that you cannot do with your 3D printer. We hope that in the future many of these hiccups will have been dealt with and solved so that we can print just about anything from the comfort of our desks.