Why is it that 3D printing food will really make us enter an era when food is controlled by ourselves?

Because its technology is in place and it is very convenient.

3D printing, whose scientific name is additive manufacturing, is a rapid prototyping technology. It is based on a three-dimensional data model, using adhesive materials such as powder or plastic, and finally printing the model by stacking one layer at a time.

After a brief understanding of the working mode of 3D printing, we will specifically understand the common 3D printing processes, including photocuring, laser sintering, lamination, melt deposition, directional energy deposition, mixed addition and so on. Photo-curing: liquid photosensitive resin undergoes curing reaction after illumination, and is cured into finished products.

Laser sintering: laser (electron beam, etc.) is used to irradiate powder raw materials. ) and melt it layer by layer, or stick the powder together with a specific adhesive to complete the final product! Lamination: an ancient 3D printing process, which was used in archaeology in the early days and used for the restoration of dinosaur fossils and human bones. It uses the method of cutting cardboard to make the final fossils or bones!

Fused deposition: This is the most common processing technology, and our common desktop machines are made on the basis of this technology. The materials used in this technology are diverse, not only plastic, but also food, such as chocolate, bean paste, cream and so on, and even building materials, cement is also possible. There are also directional energy deposition, mixed additives and so on.

Directional energy deposition: metal powder or metal wire is directly melted and solidified on the surface of the product, which is suitable for the repair of parts and can also use a variety of materials. This technology is still relatively advanced in China, through which aircraft parts up to three meters long can be made.

Mixed additives: This is a relatively new technology. When 3D printing technology is very popular in recent years, many people will compare 3D printing technology with traditional manufacturing. Some people say that 3D printing technology will replace traditional manufacturing? Some people will say that 3D printing technology is just a flash in the pan, and it has no real effect. When the heat is low, people will not pay attention to this technology. The hybrid additive technology is a process technology that combines 3D printing with traditional manufacturing. Simply put, the blank model of the product is completed by 3D printing technology, and the finishing is completed by traditional manufacturing technology. The technical advantage of hybrid additive is that 3D printing can complete the initial manufacturing process of parts with higher efficiency, and the parts that finally meet the size requirements can be completed by traditional manufacturing.