3D PRINTING Presented by: Musayab Aoun Abbas 431981 What is 3D Printing? Here the question arise how a 3-D Printer works? A digital model (CAD / Image) is turned into a physical 3D object by adding layer by layer material at a time. 3D Printing also called Stereolithography uses an additive process of successive layers of material to create a 3-D Object. It is also known as additive manufacturing. No special tools are required. Instead, a part is manufactured directly onto the built platform layer by layer having unique benefits and limitations 3D Printing Materials vary by process/ 3D printer working. Plastics (thermoplastics and thermosets) are by far the most common materials used followed by metals composites and ceramics. Fundamentally, It’s a different way of producing parts compared to subtractive manufacturing (CNC machining) or formative manufacturing methods (Injection molding). 2 History of 3D Printing 1985 1992 1999 2000 Invention Creation Medical Field Transplant 1st 3D printer built 3D printing was Charles Hull’ used in the medical invented 3D printing by 3D Systems. field - creating the ‘Human Bladder’. Miniature ‘Human Kidney’ created through 3D printing.. History of 3D Printing 2009 2011 2013 2019 Prosthetics Jewelry Weapons Construction 3D printers start 1st usable ‘Prosthetic Leg’ was offering 14k Gold as printable material. created, and this opened the door for customized products using 3D printing. 1st 3-D printed handgun ‘the liberator’ was created. Biggest 3-D printed building was created. 3D Printing Orthogonal Flowchart CAD model 3D Printer Idea Product Prosthetics Sketch Organs This is an orthogonal flowchart of 3D printing that shows different steps involved in the process. Medical 3D Printer 3D Printer Teeth 3D Printer Models Buildings Toys Construction 3D Printer 5 Types of 3D Printing Following are few types of 3D printing depending upon the material used. 01 02 03 Polymerization Power Bed Fusion Binder Jetting A part is built slice by slice from bottom to top from liquid polymer that hardens when struck by a laser beam. A laser selectively fuse together successive layers of ceramic, metal, nylon and other materials for 3D printing. A thin layer of powder particles of acrylic or sandstone is first deposited onto the build platform and are bonded together for 3D printing. 6 Basic Operation in 3D Printing 3D printing works on the basic principal of additive manufacturing. Here’s how its done: 01 02 Modelling Printing Virtual X-sections are 3D models created fused together to using CAD are create the final transferred to the geometric figure. The printer. Printing printer forms an item software slices 3D by depositing material model into 2D Xsections and generates in layers starting from a set of instructions as the bottom layer onto a a guideline for printing. platform. 03 Finishing Finishing is required to achieve higherresolution. Part is built slice by slice from bottom to top from liquid polymer that hardens when struck by a laser beam. 7 Polymerization Power Bed Fusion Binder Jetting A part is built A laser selectively slice by slice from fuse together bottom to top successive layers from liquid of ceramic, metal, polymer that nylon and other hardens when materials for 3D struck by a laser printing. beam. A thin layer of powder particles of acrylic or sandstone is first deposited onto the build platform and are bonded together for 3D printing. 8 Applications of 3D Printing Models Everyday use products Toys Different Tools Buildings 9 3D Printing Advantages The advantages of 3D Printing are many, some of them in different fields are explained below: Architecture are now using 3D printers of production of different houses and building construction. 3D printing allows rich learning experiences for deep theoretical constructs that bring learning from computer screens into students' hands Architecture Education Design Prototype Healthcare Aerospace and automobile manufacturers have been using 3D printing as a prototyping tool for some time now Scientists and engineers have already been able to use 3D printers to create body parts and parts of organs. 10 3D Printing Disadvantages Few of the disadvantages of 3D Printing are as follow: Firearms Firearms can be reproduced by anybody with a 3D printer. Expensive Although 3D printing has many advantages it is quite expensive as a 3D printer is expensive. illegal Products 3D printer can also print anything, and a criminal may use it to produce illegal products. Healthcare 3D printing produces fumes, and they can be dangerous to your safety and health. 11 3D Printing of Tomorrow In the future human organs for transplant will no longer be required as fully functional 3D printed organs will be utilized for transplant and will work the same as the organ Printers will likely become even faster, meaning they'll be able to work on larger, industrial types projects different protypes and even automobiles can be one day 3D printed In the future different and complex weapons , drones and many other armed vehicles will be created lowering the cost of arms all around the world, 12 3D Printing and Environment 3D printing can have a positive impact on the environment: it reduces manufacturing waste, lowers the carbon footprint and supports the circular economy. 3D printed, goods will be designed on computers and “manufactured” in the homes of consumers, thus reducing both the costs and environmental impacts of transportation Exhaust emissions can be reduced, in turn reducing pollution, less energy is used, repairs instead of replacements, less plus the option to recycle any waste. 13 Conclusion 3D printing technology could revolutionize and re shape the world Advances in 3D printing can significantly change and improve the way we manufacture products and produce goods worldwide. 14 THANK YOU 15
