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How Does 3d Printing Work
Dec 04, 2018

Nowadays, 3D printing technology is mainly used in medical, architectural design, manufacturing and other industries. It has fast and effective characteristics, and it is developing in the future. Many people are interested in this and want to learn 3D printing technology, that 3D printing What is the technical principle?


The printing process of each layer of 3D printing technology is divided into two steps. First, a special glue is sprayed on the area to be formed. The glue droplet itself is small and difficult to spread. Then spray a uniform layer of powder, the powder will quickly solidify and bond when it encounters the glue, while the area without glue remains loose. In this way, under the alternation of a layer of glue, the solid model will be “printed”. After printing, the loose powder can be removed to “plan” the model, and the remaining powder can be recycled.


Printing consumables are changed from traditional inks and papers to glues and powders. Of course, glues and powders are special materials that are processed, which not only have a requirement for curing reaction speed, but also have a direct impact on the strength of the model and the resolution of "printing". 3D printing technology can achieve 600dpi resolution, each layer is only 0.01mm thick, even if the surface of the model has text or pictures can be clearly printed. Due to the limitation of the principle of jet printing, the printing speed is not fast. The advanced products can achieve a vertical speed of 25 mm per hour, which is 10 times higher than that of the earlier products, and can achieve color printing with colored glue. Up to 24 digits.


Due to the high printing accuracy, the quality of the printed model is naturally good. In addition to the design, structural and moving parts that can be represented on the profile curve. If used to print mechanical assembly drawings, gears, bearings, tie rods, etc. can be normally moved, and the shape and position of the cavity, groove, etc. are accurate, and even meet the assembly requirements. The printed body can also be polished, drilled, and plated. Further processing in other ways. At the same time, the powder material is not limited to sand materials, and other materials such as elastic expansion, high performance composite, investment casting and the like are available.


3D printing technology is getting closer and closer to our lives, and it has been applied in many industries, especially in the medical industry. I hope the above content will help everyone.