The 20th Industrial Fair will open on the 19th. The 75 colleges and universities in the university exhibition area will bring 751 projects, and the number of participating universities and the number of projects will hit a new high in the past years. The exhibition area of ​​colleges and universities is closely linked to the theme of the Industry Fair, which reflects the innovative concept of “smart and green†in colleges and universities and promotes the development of innovation and entrepreneurship in universities. At the same time, around the country to implement the innovation-driven development strategy, Shanghai Construction has the global influence of the science and technology innovation center, with the use of booths to deliver high-tech innovation results, reflecting the university's science and technology ability and service social strength.
Complex wire cutters are used in the efficient manufacture of steam turbine rotor discs
What are the highlights at the Fair? The Morning News reporters explored the camp ahead of time and launched a series of reports. The first one focused on the “Efficient Cutting Tool Technology†of the team of Professor Chen Ming of Shanghai Jiaotong University.
In high-end manufacturing areas such as aerospace, energy and automotive, high-efficiency cutting of difficult-to-machine parts places high demands on tool wear resistance and long life. Although the total consumption scale of China's tool market is the first in the world, domestically produced high-efficiency cutting tools only account for about 15%. High-efficiency cutting tools in high-end manufacturing are heavily dependent on imports. Chen Ming, a professor at the School of Mechanical and Power Engineering at Shanghai Jiao Tong University and director of the Institute of Manufacturing Technology and Equipment Automation, has invented a new technology for the preparation of diamond tool coatings for more than 20 years, developed a complete set of coating equipment, and built a high-efficiency cutting tool preparation technology. Chain, the first diamond-coated tool production line with independent intellectual property rights has been established in China and promoted in the industry. Developed a series of professional tool design and application software, and finally formed 7 series of 18 series of high-efficiency cutting tool products.
The results are widely used in major equipment manufacturing fields such as aerospace, aerospace, automotive, steam turbines and engines. The localization of high-efficiency cutting tools can guarantee the safety of China's major equipment development technology and help China's high-end manufacturing.
Courage to challenge, continuous innovation
Machining is the basic process of mechanical manufacturing. The tool is the key to the processing system. It is often compared to the teeth of the machine tool, which plays the role of four thousand and two.
Conventional tools have poor precision retention and low durability in high-speed cutting, and cannot meet the high precision and long life requirements of high-end manufacturing fields such as aerospace, energy, and automobiles. According to statistics, China's tool consumption is the world's number one, but high-efficiency tools rely on imports for a long time. It is difficult to meet the requirements of further reduction of processing costs and further improvement of the level of localization of major equipment development. The need to achieve high-efficiency cutting tools localization is imminent.
Professor Chen Ming's team carried out research on the design, preparation and application of high-efficiency cutting tools with the support of “973â€, “863†and “04†major projects. In the course of the research, the research team led by him pointed out the lack of design methods and standards for domestically produced high-efficiency cutting tools, and proposed a form-wise collaborative precision design method to complete the basic theoretical innovation and key technological breakthroughs. Developed a series of professional tool design and application software, and finally formed 7 series of 18 series of high-efficiency cutting tool products. Professor Chen Ming team invented the new technology of diamond tool coating preparation for the lack of key preparation technology for domestic high-efficiency cutting tools, developed coating complete sets of equipment, and constructed a high-efficiency cutting tool preparation technology chain. Compared to traditional tool life, the diamond coated tool life has been increased by a factor of 10; at the same time, his team has developed a series of large-scale complex line tools for millions of kilowatt turbines and heavy gas turbines. Localization provides large-scale reel slot milling cutters and combination broaches, breaking the monopoly of foreign tool technology in this field.
Promote the sustainable development of high-end manufacturing
Over the years, under the leadership of Professor Chen Ming, the cutting and grinding and tool research team of Shanghai Jiaotong University has passed through numerous winds and rains on the roads of high-speed cutting technology, high-efficiency grinding technology, advanced tool development and super-hard grinding wheel application. Applause and flowers were also harvested. The research team's achievements in "high-speed cutting technology" were included in the "100 Technology Innovation Promotion Plan" of the Ministry of Industry and Information Technology.
At present, the research team has relatively complete advanced equipment and equipment, and has established long-term cooperation in production, learning, research and use with representative enterprises in the domestic automotive, aerospace and power generation equipment industries. More than 40 high-end equipment manufacturing companies such as China Commercial Aircraft Shanghai Aircraft Manufacturing Co., Ltd. and Shanghai Electric Power Equipment Co., Ltd. Shanghai Steam Turbine Plant have blossomed everywhere.
The technical success of high-efficiency cutting tools will, to a certain extent, guarantee the safety of China's major equipment development technology and promote the sustainable development of high-end manufacturing.
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