3D printing (3DP) is a rapid prototyping technology, also known as additive manufacturing. It is a technology of printing objects layer by layer based on digital model files and using adhesive materials such as powder metal or plastic. Its advantages are low cost, appearance which can not be achieved by traditional technology, and light weight of printed matter.
3D printing is usually realized by a material printer using digital technology. It is often used in mold manufacturing, industrial design and other fields to make models, and then gradually used in the direct manufacturing of some products. Parts already printed with this technology. This technology has been applied to jewelry, footwear, industrial design, architecture, engineering and architecture (AEC), automobile, aerospace, dentistry and medical industry, education, geographic information system, civil engineering, * * and other fields.
Ordinary printers used in daily life can print plane objects designed by computers, while the so-called 3D printers have basically the same working principle as ordinary printers, but the printing materials are somewhat different. The printing materials of ordinary printers are ink and paper, while 3D printers are filled with different "printing materials" such as metals, ceramics, plastics and sand, which are real raw materials. After the printer is connected to the computer, the "printed materials" can be superimposed layer by layer through computer control, and finally the blueprint on the computer can be put on it. Generally speaking, 3D printing is a device that can "print" real 3D objects, such as a robot, a toy car, various models and even food. The reason why it is popularly called "printer" refers to the technical principle of ordinary printers, because the process of layered processing is very similar to inkjet printing. This printing technology is called 3D stereoscopic printing technology.
There are many different technologies for 3D printing. The difference between them is that components are created in different layers in the form of usable materials. Commonly used materials for 3D printing include nylon glass fiber, durable nylon material, gypsum material, aluminum material, titanium alloy, stainless steel, silver plating, gold plating, rubber material, etc.