Wang Huaming: 3D printing is widely used in high performance metal materials

Since the beginning of this year, the topic of 3D printing has increasingly become the focus of attention from all walks of life: What is the current status of China's 3D printing technology development, what level is it in the international arena, and what is the future development space? At the 2013 Zhongguancun Forum Annual Meeting held recently, Professor Wang Huaming of Beijing University of Aeronautics and Astronautics said that China's high-performance large-scale metal component additive manufacturing /3D printing technology research and application is at the forefront of the international market. This technology is to upgrade China's major high-end equipment. The level of R&D and manufacturing is of great significance. In the future, 3D printing technology has a broad space for development in the field of high-performance metal material key component manufacturing.

It is understood that additive manufacturing refers to the technology of manufacturing solid parts by gradually adding materials, commonly known as "3D printing", which is a "bottom-up" manufacturing method compared to traditional material removal processing technology. In the past 20 years, the additive manufacturing technology has achieved rapid development, and has different titles in the industry such as “rapid prototyping”, “three-dimensional printing”, “solid free manufacturing”, rapid prototyping and direct manufacturing.

Wang Huaming said that China's Xi'an Jiaotong University, Tsinghua University, Huazhong University of Science and Technology and Beijing Longyuan Company started rapid prototyping /3D printing technology research and industrial applications in the early 1990s, and laser rapid prototyping of high-performance metal parts was also studied. Since the mid-1990s, the current technology research and development and engineering applications also have international advantages. According to him, the practical application of 3D printing technology is roughly divided into two levels: First, in the field of non-metallic 3D printing, 3D printing technology has been applied in a large number of new product design and development; Second, in the high-performance metal parts additive manufacturing In the field, China's 3D printing technology has an international leading level and has great potential for future development. For example, the results of laser forming technology for titanium alloy components have been established in specialized enterprises for production.

“3D printing as a new manufacturing technology is not only an important means of new product development, but also improves the level and performance of equipment manufacturing technology. Each technology has its scope of application. 3D printing of high-performance metal parts is significant. High-end equipment manufacturing is of great value because it can directly produce parts in equipment," said Wang Huaming.

As an expert in aircraft titanium alloy component manufacturing, Wang Huaming has a deep understanding of new materials based on 3D printing technology. He believes that the close integration of new materials and manufacturing is the foundation of the equipment manufacturing industry, and its impact on the future will be greater and greater. From a large field, the core of additive manufacturing for high-performance metal components is to control the components of high-performance, high-quality materials that are used in the additive manufacturing process. “The goal of additive manufacturing is to obtain high-performance components. The manufacturing process must be fast, the performance is excellent, and the cost is low. We are positioning the additive manufacturing direction for high-performance materials, and its field is larger than titanium alloy. Much more," said Wang Huaming.

"China's 3D printing technology and the international advanced level of competition, more important is how to apply application-oriented technology development and transformation of results, especially in the industrial field, that is, how to give full play to the advantages of additive manufacturing 3D printing, to create high performance High-value equipment with high added value." Wang Huaming said that China has both advantages and potential in this respect. First of all, China attaches great importance to the development of 3D printing technology, followed by China has a vast market, and the third is that China has a large high-level 3D printing R & D team.

Talking about the relationship between additive manufacturing 3D printing and China's aircraft equipment manufacturing industry, Wang Huaming believes that the manufacture of high-performance metal materials based on 3D printing technology will bring greater value to China's aerospace equipment manufacturing industry. The implementation of major national aircraft technology major projects also provides opportunities for the development of additive manufacturing technology in the aviation industry.

“Manufacturing is more concerned with the development of additive manufacturing for industrial equipment, while the society is more concerned with desktop 3D printing technology. Regardless of the focus, it is conducive to popularizing this technology. I believe that after more than one billion Chinese creation, 3D printing The huge potential will be fully utilized," said Wang Huaming.

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