Although 3D printing technology has been around for a long time, it is still considered as an emerging technology. On the one hand, 3D printing technology is becoming more and more popular and innovative in many fields. On the other hand, 3D printing technology is still in the initial stage of development. At present, 3D printing technology has covered medical, education, aerospace, manufacturing and other fields. < / P > < p > according to the relevant data released by CCID consultants, in 2019, the global 3D printing industry will reach US $11.956 billion, with a growth rate of 29.9% and a year-on-year growth rate of 4.5%. In 2019, the scale of China’s 3D printing industry will reach 15.75 billion yuan, an increase of 31.1% over the previous year. It can be seen that the 3D printing industry is achieving accelerated development, and the industrial scale growth is expected to continue to maintain a positive trend. The state has always attached great importance to the development of 3D printing industry. In recent years, China has vigorously promoted the research and development of 3D printing technology, promoted the integration of 3D printing technology with intelligent manufacturing and artificial intelligence, and achieved good results. In some key areas, industries and enterprises with good basic conditions and urgent demand, the combination of 3D printing industry and intelligent manufacturing industry has produced different sparks. < / P > < p > at present, the development prospect of 3D printing industry is more and more optimistic, the main market of non expired is still concentrated in the industry end, and the consumer end is still in the exploration stage. Industry insiders believe that the 3D printing industry should have a firm foothold in key markets such as aerospace and automobile manufacturing, in order to consider making real efforts in the consumer end to promote further market expansion. < / P > < p > for China, the development of 3D printing industry still faces many challenges, such as the application scope needs to be expanded, the application field is scarce, and the application depth is weak. Specifically, in the field of key 3D printing materials, most of China’s 3D printing materials still rely on imports from abroad, and the price of domestic 3D printing materials is relatively high, which does not have much price advantage. < / P > < p > the main reason is that foreign countries have accumulated a long time in 3D printing technology and have a monopoly position in technology, which leads to the domestic research on basic theory of 3D printing materials, production process of raw materials and development of material preparation equipment. In addition, the domestic 3D printing industry started late, resulting in the formation of import dependence. In the short term, domestic mass production is also facing bottlenecks such as high cost and limited production capacity. < / P > < p > you should know that 3D printing materials are the key foundation for the progress of 3D printing industry, and also the core element of 3D printing technology innovation. At present, 3D printing materials mainly include engineering plastics, photosensitive resins, rubber materials, metal materials and ceramic materials. Metal materials and ceramic materials are showing more and more extensive and important application prospects. < / P > < p > the development of metal materials is conducive to promoting the breakthrough of metal 3D printing industry and promoting the reform of aerospace, machinery, medical and other high-end fields. At present, 3D printing is developing rapidly in aerospace, automobile manufacturing, medical equipment and other fields, which is the opportunity period of metal 3D printing. Industry insiders believe that metal 3D printing with high industry concentration is expected to usher in more significant development on the basis of further innovation of metal materials. In addition, the development of ceramic materials has brought great benefits to the 3D printing industry. Relevant market organizations predict that ceramic 3D printing will change in the middle of 2025, ushering in an important turning point in the development of the industry; by 2030, the market scale of ceramic additive manufacturing is expected to reach nearly 5 billion US dollars. Experts said that with the development of artificial intelligence, industrial Internet, new materials and advanced manufacturing in China, 3D printing industry will achieve rapid and obvious results in localization. At that time, not only will the 3D printing industry usher in high-level development, but also the subdivision fields such as 3D printing materials and 3D printing services will achieve better results. < / P > < p > moreover, with the accelerated integration of 3D printing and artificial intelligence, and the further in-depth application in medical, aerospace and other fields, 3D printing technology is expected to make a greater breakthrough and become a strong driving force for the fourth industrial revolution and industrial transformation. In the future, 3D printing technology will accelerate the transformation and upgrading to the direction of intelligence, automation, integration and networking, and turn the huge market potential into real value. American companies begin to give up R & D: who should pay for corporate research?