What is the rapid prototyping technology for 3D printing
What is 3D printing? To be exact, 3D rapid prototyping technology is one of many rapid prototyping technologies, which can be roughly divided into seven categories, including 3D printing, stacking solid manufacturing, selective laser sintering, melting molding, 3D welding, 3D printing, digital stacking molding and so on.
Advantages of 3D printing technology
3D printing is very different from traditional mold production. The biggest advantage of 3D printing is that it can generate any shape of parts directly from the computer graphics data, without any processing, nor any mold, thus greatly shortening the product development cycle, improving productivity, and reducing production costs. At the same time, 3D printing can also print shapes that traditional production techniques cannot produce. At the same time, 3D printing technology can also simplify the entire production process, fast and effective.
The process principle of 3D printing technology
At the command of the design document, the 3D printer first squirts a solid powder or molten liquid material to solidify into a special flat layer. After the first layer is cured, the print head of the 3D printer returns, forming another thin layer beyond the first layer. After curing on the second layer, the print head returns again and forms another thin layer on the outside of the second layer.
In this way, the thin layers build up into a three-dimensional object. Unlike traditional manufacturing machines, which make objects by cutting or shaping them, 3D printers extend the range of digital concepts from a physical point of view by stacking physical objects layer by layer.
The 3D printer is the preferred processing device for precise shape design of internal concave or interlocked parts, and it can achieve this design in the real world.
Due to the high printing accuracy, the printed model is naturally of good quality. In addition to showing the design on the contour curves, the structure and moving parts are not to mention.
3D printing has brought about a global manufacturing revolution. In the past, component design depended entirely on whether the production process could be implemented. But the advent of 3D printers will overturn this idea of production, making companies no longer think about the production process when producing parts. Any complex shape design can be achieved with a 3D printer. 3d printing can generate objects of any shape directly from computer graphics data without machining or mold, thus greatly shortening the production cycle of products and increasing productivity. Although still in need of improvement, 3D printing technology has huge market potential and will surely become one of many breakthrough technologies in the future manufacturing industry. Engineering manufacturing. In engineering manufacturing, on the one hand, it is used for the production of important parts and components of high-end manufacturing industries such as national defense and aerospace. These parts production requirements are high, traditional processes are often not realized or even if realized, the cost is too high; On the other hand, it is used for small batch or single product production in engineering manufacturing.
Civil development. In terms of civil development, it brought about profound changes in manufacturing technology and reduced labor costs. 3D printing technology has been called the core technology of the "third Industrial Revolution". Medical. At the same time, 3D printing technology has also achieved remarkable results in medical treatment. It could be used to print prosthetics to help more people who have lost their legs in an accident get back on their feet and live like normal people. The 3D printed heart is another product that uses 3D printing technology to mimic human organs. The 3D-printed heart can serve as a copy of the heart's anatomy, which is great for practicing complex heart surgery. "Kidney organs" can also be printed, but these technologies are not yet ready.
The construction industry. The construction industry has made remarkable progress, and the potential for 3D printing far exceeds that of producing DIY household goods. In fact, the technology could even revolutionize the traditional construction industry. Compared with the traditional construction industry, 3D printed buildings not only have reliable quality of building materials, but also can save 30%-60% of building materials, shorten construction period by 50%-70% and reduce labor force by 50%-80%. By some calculations, printing could reduce construction costs by at least 50 percent, making housing more affordable. However, the rigidity, strength and durability of the new "ink" printed buildings need to be further verified.
3D printing allows people to buy the printers in some electronics stores, and factories are selling them directly. Scientists say the use of 3D printers is still limited, but that one day people will be able to use them to print more practical items.
3D printing technology is very important for NASA's space exploration missions. More than 30 percent of the spare parts for the International Space Station can be made using this 3D printer. The device will use polymers and other materials to make items layer by layer through extrusion incremental manufacturing techniques. The 3D printing experiment is one of NASA's key research projects in the future. 3D-printed components and tools will enhance the reliability and security of space missions, while reducing the cost of space missions because they do not need to be transported from Earth.
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