Its principle is: the three-dimensional model designed in the computer is layered to get the plane graphics of each layer, and then these layers are printed layer by layer to form a three-dimensional three-dimensional model.
Nowadays, the most widely used material is plastic, and 3D printing of metal materials is also developing, and food can also be printed in 3D. There are also ceramic materials and bioengineering materials under development.
At present, it is mainly used for model manufacturing. Metal parts and their lightweight manufacturing (which can be printed into honeycomb to maintain strength and reduce weight) will continue to expand with the continuous development of printing materials. This is a promising emerging technology and industry.
At present, there is no such enterprise in Dalian, and such technology is mature in Jinan, Shandong, Shanghai, Guangzhou and other cities.