In December 2014, the project "Digital Metal Part Forming Machine Based on Selective Laser Melting (SLM) Technology" led by Beijing Longyuan Automatic Forming System Co., Ltd. was approved as "2014 Zhongguancun Industrial Technology Alliance Major Application Demonstration Project", which is also the only project in the approved project in the field of 3D printing. This is also the only project in the field of 3D printing among the approved projects.

　　The "2014 Zhongguancun Industrial Technology Alliance Major Application Demonstration Project" is established to implement the "Zhongguancun National Innovation Demonstration Zone Strategic Emerging Industry Cluster Innovation Leadership Project (2013-2015)" and the "Opinions on Accelerating the Cultivation of Big Data Clusters to Promote the Transformation and Upgrading of Industries", and to further promote the innovation and development of industrial clusters in the Demonstration Zone. The program was established to further promote the innovation and development of industrial clusters in the Demonstration Zone. After the evaluation by experts and consideration by the Director's Special Meeting, 25 projects in the field of "641" and 16 projects in the field of big data were finally established in accordance with the Measures for the Management of Industrial Development Funds of Zhongguancun National Innovation Demonstration Zone. Recommended by the Powder Metallurgy Technology Innovation Strategy Alliance, the project "Digital Metal Parts Forming Machine Based on Selective Laser Melting (SLM) Technology" led by Longyuan Forming is a project supported by the "641" field. The field includes: six advantageous industry clusters, such as next-generation Internet, mobile Internet and new-generation mobile communications, satellite applications, biology and health, energy conservation and environmental protection, and rail transportation; four potential industry clusters, such as integrated circuits, new materials, high-end equipment and general aviation, and new energy and new energy automobiles; as well as modern service industry clusters.

　　As a high-tech enterprise of Beijing Municipal Science and Technology Commission, a high-tech enterprise of Zhongguancun and an innovative enterprise of Haidian District, Longyuan Molding, a subsidiary of SANDY Printing Technology Co., Ltd. is one of the earliest scientific and technological innovation enterprises in China to enter the field of 3D printing research and production, founded in 1993 and registered in Zhongguancun Science and Technology Park. Since the successful development of the first laser rapid prototyping machine in 1994, it has devoted itself to the development of Selective Laser Powder Sintering (SLS) rapid prototyping machine, and at the same time, it is committed to rapid prototyping application processing services. Through the 3D printing equipment and products with independent intellectual property rights, comprehensive technology and strong technical strength to provide users with personalized customized services. At present, the company has nearly 400 equipment and processing services users, throughout the aerospace, marine, automotive manufacturing, electronics, foundry industry and other fields and research institutes and universities. And in 2002 passed the ISO9001 international quality system certification. Over the years, it has made positive contributions to China's aerospace, automobile manufacturing, medical and other industries, and has been reported many times by authoritative media at home and abroad, such as Britain's weekly Economist (ECONOMIST), the Cheung Kong Graduate School of Business, and Mechanical Design (MACHINE DESIGN).

　　3D printing technology, also known as additive manufacturing, rapid prototyping, etc., is an advanced manufacturing technology that integrates light/machine/electricity, computer, numerical control and new materials. Different from the traditional manufacturing "removal method", 3D printing technology is based on computer data design files, through the powder, liquid sheet and other discrete materials layer by layer deposition or adhesion to construct a three-dimensional object technology. 3D printing eliminates the complexity of the traditional manufacturing process, without the need for molds, one-time molding, and therefore can create a complex structure that can not be achieved by traditional manufacturing methods. The technology has been advancing, and as the technology continues to advance, 3D printing can be used to create complex structures that cannot be achieved by traditional manufacturing methods. And with the continuous progress of technology, 3D printing in the casting accuracy has been comparable to traditional manufacturing methods, in personalized, small batch and high-precision product manufacturing on the application of the advantages are particularly obvious, in the medical, aerospace and high-end industrial manufacturing applications are very future market prospects.

　　The advantages of applying additive manufacturing to the direct manufacturing of metal parts are: the forming process does not require the support of jigs and fixtures or molds, so forming is flexible and saves time and cost; it is easy to realize the new concept of material processing of "net forming", and it is especially suitable for the manufacturing of metal parts with complex structures to meet the limited-order demand or special customization requirements in the fields of aviation, aerospace, national defense and biomedicine; the high utilization rate of additive forming materials and the short manufacturing cycle and low production cost; from the metallurgical point of view, laser forming parts can have micro-fine and uniform laser rapid solidification. It is especially suitable for manufacturing metal parts with complex structures to meet the demand for limited orders or special customization requirements in aviation, aerospace, defense and biomedical fields; the material utilization rate of additive molding is high, the manufacturing cycle is short, and the production cost is low; from the metallurgical point of view, the laser formed parts can have a micro-fine, homogeneous laser fast solidification organization, and the comprehensive mechanical properties of the molded parts are excellent. Thus it is foreseeable that the digital direct manufacturing of metal parts will become an important means of parts manufacturing methods and the development direction of AM technology, will be widely used in aerospace and other special complex parts manufacturing and medical field artificial bone joints, denture production, skull repair and other customized product production.

　　As a mainstream technology for digital manufacturing of metal parts, Selective Laser Melting (SLM) is the fastest-growing field of industrial 3D printing. According to Hou Jingkun, General Manager of Longyuan Forming, the project "Digital Metal Parts Forming Machine Based on Selected Zone Laser Melting (SLM) Technology" led by Longyuan Forming is aimed at realizing the demonstration application of SLM metal direct molding equipment and further realizing the industrialization of SLM molding equipment in aerospace and medical fields by cooperating with Beijing Global Precision Rehabilitation Auxiliary Aid Technology Co. Ltd. to further realize the industrialization of SLM molding equipment in aerospace and medical fields, fill the gaps in China, and drive the comprehensive upgrading of related industries. At the same time, the promotion of SLM metal direct printing technology can not only be used in aerospace and aviation key parts manufacturing and other high-end manufacturing areas, but also can be used for medical implants, molds and civil areas of people's livelihood.

　　To this end, Longyuan Molding's strong R&D team is making every effort to overcome the core technology and combining its own strengths to carry out research and development of innovative applications. Dr. Zifu Li, the company's CTO, graduated from the University of Sheffield, UK, majoring in materials science and engineering, specializes in the research and development of new alloy materials, metal, plastic, resin and other 3D printing technology application research and commercial operations, has presided over and participated in the research of various types of independent innovation and high-tech industrialization projects.

　　In the current transformation and upgrading of China's manufacturing industry, accelerating the transformation of the development mode of the historic critical period, with digitalization, intelligence as the core of the advanced manufacturing technology will drive the product, manufacturing technology and industrial model innovation, profoundly change the production mode of the manufacturing industry and the industrial form, to enhance China's industrial innovation capacity, enhance the process of manufacturing capacity, drive the development of related industry chain, crack the industrial development and resources and environment dilemma, Cultivating new industries and optimizing industrial structure are of great strategic significance. As an industry leader, Longyuan is once again standing at the head of the tide of China's 3D printing industry, ready to develop! (Text/Jiayu)