3D printing science

3D printing technology is divided into specific categories?

3D printing technology is divided into four categories, including stereolithography technology, laminated object manufacturing, fused deposition modeling techniques and selective laser sintering technology. Wherein the selective laser sintering technology are sintered under the laser irradiation, the laser sintering process in order to prevent oxidation of the metal, the metal powder must be sealed in a container. Laser sintering technology is mainly characterized by using a variety of materials, shapes does not require high precision and high material utilization. At the same time we should also see, Laser Sintering slower, less intense, the printer is very expensive.

In the laser sintering technology developed on the basis of laser melting technique is a direct method of forming metal parts, rapid prototyping technology is the latest development. Laser melting technology has many advantages, it can be made directly to the terminal of metal products, eliminating the need for intermediate links, the metal structure obtained physical metallurgy, density close to 100 percent, the workpiece is also high tensile strength, metal powder, than high dimensional accuracy, for a variety of complex shapes of the workpiece, especially for internal model of complex shaped structures.

3D printing is capable of mobilizing the third industrial revolution?

Wohlers Partnership CEO Terry Wohlers: I think a number of factors are converging together, brought together into a new industrial revolution. Various sectors are suffering because of its impact, not only is the traditional aerospace, automotive, medical and other industries, but also including jewelry, fashion, food, etc., as well as the textile industry as well as the human body tissues. I believe that in the future we can print the kidney, organs or fingers, as well as cardiac organs and limbs. We can print parts of the body, put it implanted in the patient's body which. I think this is a very very exciting time, this perfect storm is gathering, we are for the next industrial revolution ready.

Asian Association of Manufacturers CEO Luo Jun: I have done from the perspective of Industrial Economic Research, said 3D printing technology to promote the third industrial revolution, I think the next premature. But we firmly believe that nothing is impossible, someday With 3D printing technologies to further improve and mature, it might create more miracles.

At present, the world showing how 3D printing technology trends?

Wohlers Partnership CEO Terry Wohlers: Currently, 3D printing technology has been more and more attention, which is in the last 25 years in this industry did not happen. We can see that this is a snowball effect, the snowball rolling bigger and bigger. The first major trend is the low-cost desktop printers, that is a personal 3D printers from 2011 to more than 23,000 units, up to 35,000 units, and are becoming ubiquitous. The second major trend is that these systems achieve some very important applications. Such as GE Aviation will be in the aviation field using our 3D printing. Previously been welded by way of 3D printing redesigned Aluminium Magnesium Alloy powder, and put it into the manufacturing process to. Involved in the design-to-manufacturing process, a lot of good designers are pushing this technology in various fields of application.

China and the world's developed countries in the 3D printing technology itself what gaps exist?

Terry Wohlers: First, China and the United States, a lot of 3D printing technology areas of academic and industrial research are carried out in parallel, especially in the field of bio-medicine. I think that the West in general mainly the United States, Europe, and Central Europe as well as other European countries have quickly adopted this technology for industrial applications. Therefore, from this perspective, the main difference between the two countries is in understanding what is possible above. But in the production, I think the key is this technology will be applicable to those areas. If you want to apply this technology for mass production, then you will certainly fail, because this area in the foreseeable future, 3D printing products very small minority, so I think this is a 3D printer production of which should face issue.

There is the question of cost. Using 3D printing materials and machines, we have to do a balancing analysis, we must examine its cost-effectiveness, to specific conditions, look at this technology is not suitable for this area. In this respect, the United States and Europe do a lot of work. They try to understand where applicable 3D printing technology, which defect where this is required for the operation of downstream quality assurance requirements. So, these things are not simple, simply print out a product is easy, but actually put it into high-quality parts that are needed to spend a lot of thought and effort, so I think this is in the West and China's understanding exists between a difference.

How to promote the sound development of 3D printing industry?

Recently, NASA astronauts to explore 3D printing food to cook, because the astronauts on Mars for the last few years have the mandate to prepare enough food. In recent years, various governments have stepped up efforts to foster 3D printing technology, attracted world 3D printing technology for widespread concern. Some of our local government in this year's government work report have proposed to 3D printing technology for industrial planning, 3D printing will be like a night in the land of China everywhere. However, sprayed welding alloy powderWhere is the user? We do not know. For a mere passion for nurturing emerging technologies is not enough, we have to be rational, but also to objective scientific planning and layout, to avoid the herd in early stages of development, creating a vicious competition by preventing 3D printing technology repeat the mistakes of the photovoltaic industry.

Second, 3D printing technology with the traditional industries combined. Current, 3D printing technology the biggest problem is the use of markets, 3D printing technology only in the industrialization process has been widely used, in order to further mature and improve. China strong traditional industries such as the steel industry in the world, but the excess capacity problem of insufficient high-end varieties exist, but the biggest advantage of 3D printing technology is the ability to meet the personalized needs and high-end product development, in order to facilitate abandon the cause of raw materials in order to win and energy consumption, environmental pollution, deterioration of traditional industry model.

3D printing in the cultural and creative, biomedical, industrial and other fields with a wide range of applications. Currently, our 3D printing industry on the one hand to be proactive and traditional industries combined, developed for traditional industry technology and products needed to help traditional industries and improve the production process. On the other hand, to increase publicity and education and science and technology popularization efforts, so that the community have a clearer 3D printing technology understanding and grasp.