Casting advanced magnesium alloy technology, leading the lightweight future of equipment

With the rise of a new round of technological revolution and industrial transformation, intelligent manufacturing is becoming an important direction for global manufacturing reform and a commanding height for competing for competition.

China's implementation of the "Made in China 2025" strong country strategy, to determine the main direction of the integration of intelligent manufacturing, promote the transformation of manufacturing production methods, and strive to achieve the transformation from "manufacturing power" to "manufacturing power." The report of the 19th National Congress of the Communist Party of China pointed out that in the period of economic development from high-speed growth to high-quality development, we must accelerate the development of advanced manufacturing, promote quality change, efficiency change, dynamic change, and the goal of building a modern economic system. Development has pointed the way.

In order to strengthen the promotion of advanced magnesium alloy materials and their precision forming technology, promote the industrialization of magnesium alloys in military systems, accelerate the realization of light weight of military products and the intelligentization of magnesium alloy casting technology, the "Advanced Magnesium Alloy Technology and Application" Summit Forum Held in Songjiang District, Shanghai on the 8th, experts and scholars from all walks of life focused on the topic of “precision manufacturing” and focused on the theme of “casting advanced magnesium alloy technology and leading the lightweight future of equipment” to provide advice and suggestions for the development of magnesium alloy and promote “China”. Manufacturing 2025" is implemented in depth.

Academician of the Chinese Academy of Engineering Zhong Di, Ding Wenjiang, head of the Shanghai Science and Technology Commission and Aerospace Science and Technology Corporation, also invited Tsinghua University, Shanghai Jiaotong University, Harbin Institute of Technology, Shanghai University, Tongji University, Central South University, Huazhong University of Science and Technology, Dalian Polytechnic University, Beijing Institute of Technology, Nanjing University of Science and Technology, Xi'an University of Electronic Science and Technology, aerospace design and manufacturing units and application units gathered together.

This forum is jointly sponsored by Shanghai Metal Materials Near Net Forming Engineering Technology Research Center, China Aerospace Science and Technology Corporation Foundry Technology Center, Eight Institutes Foundry Technology Center, Shanghai Aerospace Foundry Center, and a high level hosted by Shanghai Aerospace Precision Machinery Research Institute. The high-standard academic conference not only provides a high-level, high-standard communication platform for broadening the industry's vision, colliding with academic views, demonstrating scientific research results, and docking industrial resources, but also promoting the continuous improvement of the performance of magnesium alloy products with practical actions. And applications in high-end manufacturing.

As the lightest engineering metal material, magnesium alloy is known as “the green engineering material of the 21st century”. Magnesium alloy has broad application prospects due to its unique advantages. Casting magnesium alloy, especially high-strength heat-resistant rare earth magnesium alloy in aerospace The field has been widely used. In recent years, new magnesium alloy processing technologies and innovative applications have emerged all over the world.

The speech of Ding Wenjiang, an academician of the Chinese Academy of Engineering, at the forum caused a strong resonance among the participants. He said: "Current resources and environment have become the primary issues for human sustainable development. With the rapid increase in the consumption of metal materials and the rapid development of science and technology, the emergence and widespread use of large-scale production processes, the resources of the Earth's case. It is becoming increasingly depleted, and magnesium is one of the most abundant light metal elements on the earth. It is inexhaustible. Therefore, in today's many traditional metal minerals tend to be exhausted, accelerating the development of magnesium materials is important for maintaining sustainable social development. Strategic significance.” At the forum, Ding Jiangwen made a report entitled “Green Magnesium Rare Earth Cultivation”, which combined with the actual situation in China and the development of countries such as Europe, America and Japan, outlined magnesium-based materials in automotive, aerospace, energy and biomedical applications. The latest research and application progress, development direction and application prospects in the field, and prospects for the main challenges facing magnesium-based materials and molding technology in the future.

The realization of high-end technology transformation is a topic that cannot be avoided in all areas of technology research and development. According to the analysis of the discipline of the Chinese Academy of Engineering, the extreme development of modern high-end equipment service functions is faced with the problem of how to get rid of the residual stress on high performance, high precision, high reliability, and even fatal damage. The combination of clockwork and concrete engineering phenomena discusses the nature, generation and reduction of residual stress.

The cohesion of innovation needs to be promoted by many parties. In this process, the role of China's space has quietly changed. China Aerospace has the foundations, conditions and advantages of advanced manufacturing, accelerates the pace of construction of technological innovation platforms, and develops the Foundry Technology Center of Aerospace Science and Technology Group and the construction of Shanghai Metal Materials Near Net Forming Engineering Technology Research Center. The development has played a leading role in providing maximum professional manufacturing traction for the development of the aerospace industry. At the same time, it has also driven the transformation of the manufacturing industry and achieved domestic leading in the application of light alloy materials such as magnesium, aluminum and titanium. Level.

The Shanghai Metal Materials Near Net Forming Engineering Technology Research Center, which was unveiled on the same day, was under the leadership of the Shanghai Municipal Science and Technology Commission. In order to meet the urgent needs of Shanghai's aviation, aerospace, automotive and other industries for near net formation, it will gather superior resources and enhance Shanghai is an innovative institution that undertakes major engineering tasks and promotes the transformation of technological achievements. It is reported that the center will focus on the scientific and technological, economic and social development of Shanghai Municipality, carry out engineering research and development of major commonalities and key technologies for metal materials, and provide mature and supporting technologies, standards, processes, equipment and new products for industrialization. Improve the technological innovation capabilities of the industry and the field.

Intelligent manufacturing is the development direction and long-term goal of the future manufacturing industry, and is also an important part of Shanghai's 13th Five-Year Plan. "Strengthen the research and application of advanced and suitable metal materials near net shape forming technology, strive to create leading talents in the industry, lead the industry's technological progress, and provide important support for the construction of Shanghai Science and Technology Innovation Center." The head of Shanghai Science and Technology Commission has high hopes for the development of the center. He said that the Shanghai Science and Technology Commission will fully support the construction and development of the center, and support the center in technical research, personnel training, condition building, military-civilian integration, etc., so that the center can make development for the high-end manufacturing field of aerospace and even Shanghai. A bigger contribution. For enterprises, intelligent manufacturing is a system that will bring about the regeneration and reshaping of organizational capabilities of manufacturing enterprises. Processing enterprises are vying to be pioneers under the tide of intelligent manufacturing, and continue to promote precision manufacturing to “intelligent”. The transformation of the direction of the upgrade. In this regard, the organizer of the forum, Shanghai Aerospace Precision Machinery Research Institute, adheres to a consistent attitude.

At present, Shanghai Aerospace Precision Machinery Research Institute has mastered the formulation and melting and heat treatment process of cast heat-resistant magnesium alloy alloy, and compiled aerospace industry standards, and its technical level has reached domestic leading; casting casting and quality control technology are at the domestic leading level; The large-scale thin-wall frame structure of magnesium alloy enamel bottle bracket parts has been integrally formed and formed. It has been applied to a certain type of satellite and won the "International Quality Casting Gold Award-Special Award" at the 2017 International Casting Expo. The first time in China is 2-3 meters in length and weight. The production of 1-3 tons of super-large magnesium alloy castings has broken through the ablation prevention in the casting process of ultra-large magnesium alloy castings, the melt refining of tons of magnesium alloys and the overall casting forming technology, "super large magnesium alloy vibrating tabletop casting In 2016, the “Technology” project won the second prize for scientific and technological achievements in the machinery industry.

The lightweight of weapons and equipment is the eternal theme of the defense military industry. With the rapid development of the military industry, the performance of military equipment is more advanced, the functions are more perfect, and the structure is more complicated. Therefore, more urgent requirements are put forward for lightweight and high-performance structural materials. In the field of structural parts manufacturing, “casting and forging, aluminum-based steel, magnesium-based aluminum” has become a development trend. The blueprint for the industry has been drawn, and the research and development of Shanghai Aerospace Precision Machinery with two “centers” is the responsibility of building the domestic magnesium alloy manufacturing ecosystem, promoting the development of magnesium alloy casting technology, and opening up a new era of magnesium alloy defense application. .