• 3D Printing
  • What are the new breakthroughs in domestic 3D printing technology?

First, 3D printing process Common 3D printing processes are SLA (light-cured molding), LOM (laminated solid manufacturing), SLS (selective laser sintering), FDM (fusion deposition manufacturing), 3DP (three-dimensional printing and forming). The FDM is the most commonly used among these five processes. Because there are many materials suitable for this process, especially PLA, there is a lot of use. If there is a breakthrough in this aspect, then the cost of consumables can only be reduced, and how to optimize the process is studied. With the least amount of material, print out a good product. In fact, it is not easy to see a breakthrough in terms of technology. It is better to use materials as an example. In terms of metal and ceramics, I have read some recent news. The most common is metal laser sintering technology.The laser 3D printing technology of metal parts is one of the most difficult and most concerned about domestic and international 3D printing technology. Among them, the selective laser melting (SLM, mainly used in aerospace, microelectronics, medical, jewellery and other industries) based on automatic powder coating is mainly characterized by high machining accuracy and almost no mechanical processing. Manufacturing a variety of sophisticated metal parts to achieve structural integration, lightweight, in the aerospace field has a wide range of applications. However, the low forming efficiency and limited forming dimensions are the bottleneck for the development of this type of technology. Previously, there was a big gap between our country's SLM technology and the international advanced level. Most of our equipment depended on imports. However, recently we broke through the bottleneck that SLM molding is difficult to efficiently produce large-size metal parts. This is really worthwhile. Things ah. The hardness of ceramics is particularly high, which is even harder than metal. It is said that 3D printed ceramic parts are now used in various cutting-edge fields, and capitals are used in the abuse.

Second, the policy aspect We all know the scientific name of 3D printing technology - Additive manufacturing 3D printing is a rapid prototyping three-dimensional technology, it is from point to line, from line to surface, layers stacked into three-dimensional shape, so Call it additive manufacturing. Then, people engaged in 3D printing must pay attention to these two issues. On March 18, 2016, the Department of Equipment and Industry of the Ministry of Industry and Information Technology organized a symposium on the development of additive manufacturing industry in Beijing and the establishment of the National Standardization Technical Committee for Additive Manufacturing. The conference and the 1st conference held in Beijing, which indicates that 3D printing has been incorporated into the national standard, all of which proves the importance of the 3D printing of the national team. On May 30th, the National Science and Technology Innovation Conference, the 18th Academician Conference of the Chinese Academy of Sciences and the 13th Academician Conference of the Chinese Academy of Engineering, and the 9th National Congress of the China Association of Science and Technology were held in the Great Hall of the People in Beijing. According to internal sources, President Xi specifically mentioned 3D printing technology. Although this is not a substantive content, we can also get a kind of wind direction from it. The era of rapid development of 3D printing is coming. I don't know if everyone is ready.

III. 3D Printing Applications People familiar with 3D printing all know that 3D printing has had a lot of applications in a number of industries such as construction, medical care, molds, and aerospace, and has achieved certain results, but these are promoting 3D printing among the general public. The popularity has not played a great role. Using 3D printing technology for manufacturing goods seems to be the consensus of all people, and it has become more and more intense. It is undeniable that 3D printing technology does have some unparalleled advantages in the manufacturing industry, but simple production and manufacturing cannot play a role in popularity. A few days ago I responded to the question of the bottleneck of 3D printing. The following is a good answer from a friend. He said that traditional industries are more frightening than traditional industries. We have been designing for production and we have been designing traditional manufacturing industries. It's a terrible thing to be able to produce products, not to design them for product features. You want to use 3D printing technology instead of traditional industrial manufacturing. At this stage, it is impossible. First of all, it is not in terms of cost. . Therefore, we need to make changes in our thinking, and we must change our minds. We must start with education.

Do not know if you have discovered that the recent 3D printing of children's creative education is quietly hot. According to a friend of mine, each primary school in Qingdao is equipped with a 3D printer, and some 3D printing training courses are plentiful. The heart of the idea is that everyone has seen business opportunities and found a way to make money using 3D printer technology. The 3D printing technology has also been used. Maybe it was because I thought about it. Maybe we really realized that we need to change our understanding of 3D printing ideologically. We sincerely hope that schools and training courses can really develop children's ability to start and innovation, not simply To teach them to print out bizarre and weird stuff, we need to instill in them the idea that 3D printing technology can produce multifunctional products instead of printing a model. Written at the end, maybe I don’t mean words, it seems to be a joke for professionals, because I only have one tiptoe in the 3D printing industry, but I am optimistic about 3D printing, hoping that domestic companies will jump out to reduce 3D thresholds. , Make substantial contributions, and also hope that everyone will change their minds. Don't think about how to print products every day. You are in cattle and cattle, but traditional manufacturing, you can print multi-function products.