Domestic machine tools are popular

Domestic machine tools are popular In recent years, China's machine tool market has shown a booming trend in both production and demand. The production of numerically-controlled machine tools representing the advanced level of the equipment manufacturing industry is taking advantage of the situation, as if it were plugged into the wings of Gao Xiang.

I. Domestic sales of Chinese-made machine tools learned from the China Machine Tool Industry Association. Since the 10th Five-Year Plan, China's machine tool consumption has been a record. The total consumption of machine tools in the mainland market (the output value of domestic products + the import value - the amount of exports) and the amount of imports have been consecutive 5 It ranks first in the world and has become a major consumer of machine tools in the world. According to statistics, the consumption of machine tools in China's mainland market reached US$13.11 billion in 2006, which represented a year-on-year increase of approximately 20%. Machine tool imports reached US$7.24 billion, a year-on-year increase of 11.55%, an increase of 1.7 percentage points over the same period of the previous year. In response, Wu Linlin, director-general of the China Machine Tool Industry Association, said that China's machine tool consumption accounted for more than 20% of the total sales of machine tools in the world. This is difficult for any country in the world (world machine tool consumption ranks second and third. Japan and Japan account for about 15%, the United States about 11.6%, Germany about 10.6%). This provides a rare market opportunity for machine tool industry development.

The strong market demand led to the emergence of a booming production and sales situation in the domestic machine tool industry. Its industrial output value and sales revenue maintained a growth rate of more than 20% for five consecutive years. In 2006, it increased by 27.1% and 26.4%, respectively, which was an increase of 2.3 and 0.9 percentage points from the same period of last year. Among them, the sales value of domestic metal processing machine tools (including metal cutting machine tools and metal forming machine tools) has risen to the third place in the world since 2005, and reached 55.2 billion yuan (US$7.06 billion) in 2006. The domestic machine tool has regained the favor of domestic users due to the improvement of the technical level. The domestic market share has risen to 44.8%, an increase of 5.1% over the same period of last year. At the same time, the export value of China’s machine tools also reached US$1.19 billion in 2006, a year-on-year increase of 44.56%. Domestically produced machine tools can be described as both domestic and foreign markets.

Second, the development of CNC machine tools to take advantage of power In recent years, China's machine tool manufacturing industry to benefit from the national revitalization of the equipment manufacturing industry has made great progress, which leading the current level of machine tool manufacturing technology, CNC machine tool industry is even better.

The level, variety, and production capacity of CNC machine tools reflect the country's overall technical and economic strength. As the strategic equipment of the national defense industry, CNC machine tools are the most important means of manufacturing all kinds of weapons and equipment and are an important guarantee for the modernization of national defense and military equipment. However, revitalizing the CNC machine tool industry has a certain degree of difficulty for the machine tool industry. According to experts, the digital manufacturing technology required for the development of CNC machine tools is the core of advanced manufacturing and is the key to achieving independent innovation. Therefore, for the whole industry, rejuvenating the CNC machine tool industry is both a strategic opportunity and a severe challenge.

At present, the leadership of the Party Central Committee and the State Council pays close attention to revitalizing the equipment manufacturing industry. The “Eleventh Five-Year Plan” has revitalized the equipment manufacturing industry as the main content for promoting the optimization and upgrading of industrial structure. CNC machine tools have become one of the key points in revitalizing the equipment manufacturing industry. . In 2006, the 16 major projects identified by the State Council’s Mid- and Long-term Plan for the Development of Science and Technology (2006-2020) and the State Council’s Several Opinions on Accelerating the Revitalization of the Equipment Manufacturing Industry will all be developed Precision, high-speed CNC equipment and numerical control systems and functional components are listed as key support areas for development.

Compared with the traditional stamping process, the hydroforming process has obvious technical and economic advantages in reducing weight, reducing the number of parts and the number of molds, increasing rigidity and strength, and reducing production costs. It has been obtained in the industrial field, especially in the automotive industry. More and more applications.

In the automotive industry and aviation, aerospace and other fields, reducing structural quality to save energy in operation is a long-term goal and one of the trends in the development of advanced manufacturing technology. Hydroforming is an advanced manufacturing technique for achieving lightweight construction.

Hydroforming is also called "internal high pressure forming". Its basic principle is to use a pipe as a blank to apply an ultra-high pressure liquid inside the pipe while applying axial thrust to both ends of the pipe blank to feed. Under the joint action of the two external forces, the tube blank material is plastically deformed and finally adhered to the inner wall of the mold cavity to obtain a hollow part whose shape and precision meet the technical requirements.

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