In recent years, China's 3D printing industry, which started in the 1990s, has been developing rapidly, and China's huge population has provided a broad market for 3D printing applications. Statistics show that since 2008, the number of 3D printers in China has doubled seven times, and the technology is close to the world's advanced level. However, it should not be ignored that the industrialization of China's 3D printing process is still a large gap with Europe and the United States, the overall application service capacity is still far behind Europe and the United States. In China's 3D printing industry is still in the primary stage of development, Europe and the United States and other developed countries, 3D printing technology has been widely used in space vehicles, automobiles, construction, clothing, and even food, human tissue and organs, etc., especially in some cross-disciplinary areas of the application of more obvious. The reasons for this are: production, learning, research and use of disconnect, although there are already some institutions engaged in 3D printing technology research, but the real 3D printing technology applications and industrialization of the enterprise is not much, a lot of technology only stays in the academic level, do not get a good industrial application; a lot of research and development, innovative products lack of effective combination of market demand, ignored from the prerequisites of the market demand; lack of leading enterprises, core technologies and mature business models. As Luo Jun, executive director of China 3D Printing Technology Industry Alliance, said from the bottom of his heart after visiting Stratasys and 3D Systems: whoever opens the application market first in the future may lead the development of this industry (3D printing). In other words, who has a strong application service capability, who will be able to compete in the 3D printing industry more advantageous and seize the market opportunity.

　　Unfolding the development scroll of China's 3D printing industry, Beijing Longyuan Automation System Co., Ltd, the holding subsidiary of SANDY Printing Technology Co. As one of the earliest companies in China to research and develop 3D printing technology, Longyuan has been playing the role of practitioner and leader in the industrialization of 3D printing since 1994, when it successfully developed China's first SLS rapid prototyping machine, and has devoted itself to the industrialization of rapid prototyping application and processing services. It has successively launched AFS-360, 500, laserCore5100, 5300, 7000 and other models of SLS equipment, and has more than 400 equipment and processing service users, spreading over the aerospace, shipbuilding, automobile manufacturing, electronics, foundry, medical, culture and art and other fields and research institutes and colleges and universities.

　　In the aerospace field which has great development prospects, Longyuan molding provides the production and service of helicopter engines, helicopter magazines, worm gear pumps, titanium frames, exhaust ducts, aircraft suspension parts, flywheel shells and other aircraft parts for China's aerospace and other departments and aircraft manufacturers, and participates in the completion of a number of key national aerospace project development and research tasks.

　　In the field of military industry, which has a clear demand for growth, Longyuan Molding has participated in and completed the development and research tasks of many national key projects in military industry.

　　In the field of automobile manufacturing, in 2001, the rapid prototyping and rapid manufacturing process of key structural parts of automobile successfully developed by Longyuan Molding began to provide RP services for cylinder block, cylinder head, intake pipe and transmission shell for automobile enterprises; in 2006, Longyuan Molding's laser direct molding casting sand core technology was successfully used for rapid development of automobile engine block, cylinder head and supercharger; in 2011, Longyuan Molding began to develop large-size laser core making machine to meet the demand of diesel engine and other industries, Longyuan molding started to develop large-size laser core making machine; through the cooperation with Guangxi Yuchai Machinery Co., Ltd. and Dongfeng Commercial Vehicle Craft Institute, Longyuan molding has developed the rapid manufacturing method and process of diesel cylinder block and cylinder head.

　　In the emerging biomedical field, Longyuan Forming has specially developed AFS-320 rapid prototyping machine, which adopts the selective laser powder sintering method to make solid model with polystyrene powder as raw material, which can be used for the symptoms of zygomaticomandibular bone fiber abnormality hyperplasia in oral medical treatment; and has good therapeutic effect in the clinical treatment of old zygomatico-zygomatic arch comminuted fracture. Through specific CAD software, 3D design of dental base, crown, bridge, hood crown, veneer, and inlay of denture can be realized. In addition, 3D printed heart, kidney, blood vessel models and femoral orthopedic (artificial joints, skulls, pelvic bones) models can be used as effective adjuncts to improve medical success.

　　In addition, in one of the mainstream application directions of 3D printing in the future, metal 3D printing applications, Longyuan molding is also leading all the way. As early as in 2000, it successfully developed SLS-based rapid casting process for metal parts with complex internal cavity structure, laying the foundation for rapid production of engine-type complex structural parts, and the direct molding technology for metal materials entered the substantial development stage, after which it could manufacture stainless steel and Ni-base alloy steel parts with a density of 100%. in late 2014, under the recommendation of the Strategic Alliance for Powder Metallurgy Innovation, the "Selective Laser Melting (SLM) technology based on SLM", led by Longyuan Molding, has been developed and implemented. At the end of 2014, on the recommendation of 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 was approved as "2014 Zhongguancun Industrial Technology Alliance Major Application Demonstration Project", which became the only project in the field of 3D printing among the approved projects. The project aims to realize the industrialization of SLM forming equipment in aerospace and medical fields through the demonstration application of SLM metal direct forming equipment.

　　In view of the outstanding performance of Longyuan's 3D printing application service in China, the authoritative media at home and abroad, such as ECONOMIST, the official website of Cheung Kong Graduate School of Business, and MACHINE DESIGN, have repeatedly reported Longyuan in a large space, and called Longyuan as one of China's few non-underestimated 3D printing manufacturing service providers.

　　Compared with traditional manufacturing, 3D printing eliminates the complex process of traditional manufacturing product molding, no molds are required, and molding can be done in one go, so more complex structures can be designed and produced, which is especially suitable for the production of small-lot, multi-variety customized products and personalized large-volume manufacturing. As the largest 3D printing (SLS) technology service provider in China, Longyuan Molding & Processing Service Center, with its own technology and equipment, pioneered the rapid prototyping of wax molds and resin sand molds, and is closely connected with the traditional precision casting, which can provide mature mold-less production process solutions for the single-piece, small-lot production of the trial stage of new products for many enterprises, and provide rapid manufacturing for colleges, universities and scientific research institutes that have the capability of development. For universities and research institutes with development capability, we provide rapid manufacturing of various complex artistic prototypes, lost wax casting molds, sand casting sand core processing services. At the same time, the efficient operation mechanism composed of the company's development department, production department, marketing department, administration department and after-sales service department provides strong support for Longyuan molding and processing service center, which enables it to continuously integrate new technologies, new techniques and new material achievements, improve products and after-sales technical services. Nowadays, Longyuan Processing Service Center has manufactured large quantities of shaped and complex parts for aerospace, national defense, automobile and motorcycle, pump industry and valve body industries.

　　In the service-oriented business model is quietly changing the traditional business model today, Longyuan molding also clearly recognize that, as a science and technology-based industrial manufacturing enterprises, the need for a set of market demand and the characteristics of the enterprise's own development of the service system to provide customers with specialized, customized, continuous service. Specialized service, i.e., professional people do professional things; customized service, i.e., providing services around the different needs of customers; continuous service, i.e., providing services for customers at any time when they need them.

　　Over the past twenty years, Longyuan Molding has been providing one-stop solutions for customers with its unique service system. Its domestic top equipment can provide customers with a complete set of equipment and services for small batch production, as well as personalized customized services for products. It can also provide the best equipment and technical means for different stages of product design and development. Through the 24-hour online consulting service and the machining alliance composed of machining centers located in many places across the country, we can provide customers with timely and professional help at any time and any place. In addition, by the chief engineer, marketing director, technical backbone of the Longyuan processing services team has a comprehensive professional knowledge, excellent professional technology and rich market experience, with good collaboration and communication skills, in-depth and accurately grasp the customer's product design, development and production requirements, and through scientific and rigorous workflow, combined with long-term practical experience, to provide customers with the most suitable solutions. We can provide customers with the most suitable solutions through scientific and rigorous workflow, combined with long-term practical experience.

　　In the current historic critical period of China's manufacturing transformation and upgrading, accelerating the transformation of the mode of development, as one of the most typical and widely used technologies in the digital manufacturing industry, 3D printing technology will play an unparalleled role in upgrading China's industrial manufacturing level. Therefore, it is of great strategic significance to promote the development of 3D printing technology to enhance China's industrial innovation capability, improve process manufacturing capacity, crack the industrial development dilemma, and optimize the industrial structure. In the country for the development of 3D printing and the development of a clear goal, including the R & D application of the ability to cultivate strong enterprises, and the formation of industrialization demonstration bases in the country's planning, coupled with the Ministry of Industry and Information Technology, "National Additive Manufacturing Development and Promotion Plan" is about to be released and implemented, all the signs that China's large-scale application of 3D printing is about to take a substantial step forward. For Longyuan Forming, which is highly market-oriented and has the advantage of 3D printing industrialized application service, it has undoubtedly ushered in a wonderful development opportunity. (Text/Jiayu)

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