Detailed 3D printing materials

3D printing is also called additive manufacturing. Its essence is to deposit materials layer by layer through special equipment. In the entire composition, 3D printing materials always play a vital role. Just like ABS materials are used to print toys, etc., and bionic materials can be used to print artificial blood vessels, 3D printing materials determine the scope of application of the industry. To a certain extent, the development of 3D printing materials determines 3D printing. The development prospects of the industry.

 

At present, the common 3D printing materials are ABS, PLA, PVC, PC, and other plastic materials suitable for FDM (Fusion Laminated Molding) 3D printers. Among them, ABS and PLA are the most commonly used materials. These materials usually have a low melting point and are easy to shape. After heating and melting, they are deposited and printed by a nozzle. They are suitable for use in toys, clothing, handicrafts, and other occasions where the strength requirements are not very strict. It is made into a disk-shaped wire.

 

 

Metal (including titanium alloy, aluminum alloy, stainless steel, gold and silver, etc.) powder, thermoplastic material (nylon, ceramic, etc.) powder is suitable for SLS (selective laser sintering) 3D printers, and the nozzle spreads these powders and adhesives. After the thin layer is sintered by laser, a layer of powder is spread on it and sintered again until the product is formed. The most commonly used materials of this kind are titanium alloy powder, aluminum alloy powder, etc. The printed items have high strength, heat resistance, and corrosion resistance, and are suitable for medical, aerospace, jewelry, and automobile manufacturing industries.

 

 

In addition, there is a photosensitive polymer and liquid resin material, which are suitable for SLA (stereoscopic light-curing) 3D printers. This material is cured layer by layer under the stimulation of a UV light source with a specific wavelength. Compared with other 3D printing materials, this material has faster forming speed and higher precision, but the material cost is high, and the product stability is poor.

 

 

In addition to these conventional 3D printing materials, many scientific research institutions have begun the research and development of biological materials that mimic human tissues and materials that mimic building materials. I believe that in the near future, more 3D printing materials will appear, and 3D printing will also be applied to more and more fields.

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