3D Printer (3DP) is a magical printer designed by an inventor named Enrico Dini, not only to "print" a complete building, or even in a spacecraft. The astronauts print the shape of any desired item. But the 3D print out of the object model, can not print out the function of the object.
February 3, 2016, the Chinese Academy of Sciences, Fujian Institute of Material Structure 3D printing engineering technology research and development center Lin Wenshang research group for the first time in the country can be a continuous print three-dimensional objects rapid prototyping technology, and developed a super fast continuous Print a digital projection (DLP) 3D printer. The speed of the 3D printer reached a record of 600 mm / s, in just 6 minutes, from the resin tank "pull" a height of 60 mm three-dimensional objects, and the same object using the traditional three-dimensional light curing molding Process (SLA) to print it takes about 10 hours, the speed increased by 100 times! 3D printing to achieve space industrialization.
3D printer, also known as three-dimensional printer (3DP), is a cumulative manufacturing technology, that is, a rapid prototyping technology of a machine, it is a digital model based on the use of special wax, powder metal or plastic can be bonded Material, by printing a layer of adhesive material to create three-dimensional objects. At this stage the 3D printer is used to make the product. The method of constructing objects by layer printing. The principle of the 3D printer is to put the data and raw materials into the 3D printer, the machine will be in accordance with the program to build a layer of products.
The biggest difference between a 3D printer and a traditional printer is that it uses "ink" as a real raw material, and there are a variety of layers that can be used to print, from a wide range of plastics to metals, ceramics, and rubber Substances. Some printers can also combine different media, so that the printed objects are hard and the other end is soft.
1, some 3D printers use "inkjet" way. A thin layer of liquid plastic material is sprayed onto the mold pallet using a printer sprinkler, which is then disposed under UV. After the mold tray drops a very small distance for the next layer to stack up.
2, and the use of a technique called "melt-forming", the whole process is to melt the plastic in the nozzle, and then through the deposition of plastic fibers to form a thin layer
3, there are some systems using a technology called "laser sintering" to powder particles as a print medium. The powder particles are sprayed onto the mold pallet to form an extremely thin powder layer, cast into a specified shape, and then solidified by the ejected liquid adhesive.
4, while the use of vacuum in the electron flow melting powder particles, when encountered with holes and cantilevered complex structure, the need for the media to join the gel or other substances to provide support or to occupy space. This part of the powder will not be cast, and finally only need to use water or gas to wash out the support can form pores.
3D printing brings the world manufacturing revolution, the previous part of the design depends entirely on the production process can be achieved, and the emergence of 3D printers, will subvert the production ideas, which makes the production of components in the time no longer consider the production Process problems, any complex shape of the design can be achieved through the 3D printer.
3D printing without the need for mechanical processing or mold, you can directly from the computer graphics data to generate any shape of the object, which greatly shorten the product's production cycle and improve productivity. Although still to be perfect, but the 3D printing technology market potential is bound to become the future of manufacturing one of the many breakthrough technology.
3D printing allows people to buy these printers in some electronics stores, and the plants are selling directly. Scientists have said that the use of three-dimensional printer is still very limited, but in the future one day people will be able to print through the 3D printer more practical items.
3D printing technology is essential for NASA's space exploration mission, and more than 30% of the existing spare parts of the International Space Station can be manufactured by this 3D printer. This device will use polymer and other materials, the use of extrusion incremental manufacturing technology layer by side to create items. 3D printing experiment is one of the future key research projects of NASA, 3D printing parts and tools will enhance the reliability and security of space missions, and because of the need to transport from Earth, can reduce the cost of space missions.
Three-dimensional printing is usually done using digital technology materials to achieve the printer, the use of the process of the printer is:
1, tap the "print" button on the computer screen, a digital file will be sent to an inkjet printer, it will be a layer of ink sprayed to the surface of the paper to form a two-dimensional image.
2, and in 3D printing, the software through computer-aided design technology (CAD) to complete a series of digital slices, and these slices of information transmitted to the 3D printer, which will be continuous thin layers stacked until a solid object forming.