The domestic CNC tool industry has mixed problems and needs to be solved.

In today's manufacturing power to create, our country has been to revitalize the equipment manufacturing industry to improve the strategic position, CNC machine tools, CNC tool development and application of numerical control to enhance the level, to improve the efficiency and reduce the impact of manufacturing costs, is causing the country With the increasing attention of the industry, the Chinese tool industry will face a great opportunity to reshuffle and develop rapidly in the next few years.
At the same time, foreign companies are aggressively cutting tool to occupy the domestic market, have a piece of cake from the cut of their own that one, relying on its strong R & D and market development, squeezing domestic enterprise market space, which for domestic knives manufacturers is a challenge, a challenge had to accept, and can not avoid recession.

How to face the opportunities and challenges of this? How to face up to the problem of domestic tool industry? With these questions, the reporter interviewed Shen Zhuangxing, secretary general of the Tool Tool Industry Branch of China Machine Tool Industry Association.

Industry development has mixed worries, mixed feelings
Hi: China's CNC tool industry with rapid development
"CNC tools are the customary name for modern high-efficiency tools in China." Secretary Shen said this. "It is an integral part of modern digital manufacturing technology." In the past decade, with the accelerated pace of modernization in the manufacturing industry, China's digital manufacturing technology has also achieved rapid development. 20 century, China's annual output of metal cutting machines has reached 190,000, but only 14,000 units of CNC machine tools; at that time, to the new carbide cutting tools as the representative of modern and efficient tool, the tool is also only 15% of the total output. After entering the new century, the development speed of China's machine tool industry has been greatly accelerated. In 2007, the output of CNC machine tools in China reached 123,200 units, and the numerical control rate of output value reached 43.7%. The specific gravity of the high-efficiency cemented carbide tool matched to this has also risen to 40.3% of the total tool output. It can be seen that since the beginning of the new century, China's CNC machine tools and high-efficiency tools have achieved rapid and synchronous development. At present, the domestically produced modern high-efficiency tools have entered the automotive industry, the mold industry, aerospace, power generation equipment, general machinery and other fields. The performance of some products has reached or approached the international advanced level, effectively breaking the monopoly position of imported tools in some fields, and contributing to the standard competition of China's efficient tool market.

Worry: There is still a big gap between the development level of China's tool industry and the needs of modern manufacturing.
"Talked about the last decade of achievements and progress, these are real, we should be sure of." Shen Secretary-General said, "but we overestimated the level of future development is detrimental." At present, some industry insiders are optimistic that in the past decade, China has developed a large number of CNC machine tools and modern high-efficiency tools. Many products have reached or even approached the international advanced level. Therefore, it is considered that China's machine tool products have entered the international advanced ranks and basically satisfied. The idea of ​​modern manufacturing development is wrong.

Secretary Shen believes that this overly optimistic estimate is neither realistic nor conducive to future development. This is because, first, the CNC machine tools and modern high-efficiency tools developed in China in recent years are basically in the imitation stage, or the combination of imitation. Although high-end products have been made, their development is still in its infancy and cannot be confused with the advanced stage of independent innovation. Second, in recent years, in the development of high-end products, we have adopted the principle of copying the original and replacing imports, which is conducive to accelerating the development speed and meeting the needs of the manufacturing industry. However, the price paid by this mode of development is that it relies entirely on developed countries in technology, loses the dominant position of development, and always follows behind others. For example, the basic manufacturing technology of modern high-efficiency tools mainly consists of three major blocks: high-level modern tool materials, high-level modern coating technology and equipment, and high-level tools for tool-specific digital manufacturing technology. These three high-end technologies, including raw materials, technology, technology and equipment, we also rely entirely on the introduction, leaving these "foreign canes", high-end products can not be manufactured. It can be seen that when we review the rapid development of the machine tool industry in the past ten years, we must fully affirm the achievements and insist on seeking truth from facts. Do not blindly overestimate the level of development we have achieved.

We must continue to work diligently, work hard, and continue to lay a solid foundation in development and enhance the ability of independent development to provide better services for modern manufacturing.

Follow-up
Secretary Shen believes that "the conservative concept of obedience and inconsistency in the development of modern high-efficiency cutting tools in China far exceeds the impact of technological backwardness."

From the development of traditional standard tools to modern and efficient tools, manufacturers are experiencing a painful and difficult process of change that is reborn and full of uncertainty. This process of change has caused some companies to retreat, and the corporate helm has not chosen to face difficulties in the face of this situation, but chose to stay in place. The reason is that traditional high-speed steel tools still have a considerable market in China, and they can still make profits through the production of high-volume low-end products and low labor costs. This erroneous concept has become the biggest obstacle to the development of modern and efficient cutting tools in China. "We should see that change is an objective need. China's manufacturing industry is accelerating the process of modernization at an unprecedented speed. Taking the automobile manufacturing industry as an example, it took 36 years from 1956 to 1992 to develop to 1 million vehicles. From 1992 to 1996, it took only 4 years to develop to 1.5 million vehicles. Since then, it has grown at a high speed. In 2005, it reached 5.7 million vehicles and will exceed 10 million vehicles this year. It has become a major automobile production country in the world. The rapid development of the modern manufacturing system has become an indisputable reality in China's land. Therefore, no matter from the survival space of China's tool industry itself or from the overall need of China's manufacturing industry to improve competitiveness, the tool enterprises are accelerating. Structural adjustment has promoted the development of modern and efficient tools. There is no way to stop and stagnate and stick to the rules. Whether this change in concept is prompt and timely will have a decisive impact on the development prospects of enterprises and industries. Worry to say.

Weak innovation in independent innovation
Science and technology are primary productive forces. Since there is no serious and solid scientific and technological innovation, China's modern high-efficiency tools have experienced a rapid growth after a round of rapid growth and lack of technical support for sustainable development.

Secretary Shen believes that with the rapid development of the manufacturing industry in the past ten years, the speed of modern high-efficiency cutting tools in China is also very fast. However, there are drawbacks in this rapid development, and the foundation is not solid, which has become the biggest hidden danger for the sustainable and efficient development of enterprises.

At present, many research and development centers and engineering centers have been established in the tool industry. However, so far, these centers have not seen progress in the basic technology research of modern high-efficiency tools. Some R&D centers have performed very well in the digestion and absorption of imported technologies, but the true capacity for independent innovation still has problems. Secretary Shen said: "At present, there is a worrying tendency: companies are keen on grasping projects and grasping products. The picture shows quick results and achievements. This kind of quick success has made the company pay too little attention to basic research. There is little interest in theoretical research. However, a solid foundation is a strong driving force for the sustainable development of enterprises. Without basic research, it lacks the source of sustainable development."

Taking the advanced manufacturing technology of modern passenger aircraft as an example, it is used as a reference for the domestic industry. The Boeing Company is developing a new modern passenger aircraft represented by the Boeing 787. The development goal is "better, faster, more provincial, greener." To this end, this passenger aircraft uses a large number of new technologies, new processes, new materials. Only a variety of fiber-reinforced synthetic materials account for more than 50% of the aircraft's weight, which can be said to be a milestone in the history of passenger aircraft development. In response to the new challenges and challenges that such passenger aircraft may face in future manufacturing. Boeing has established a global, open research organization called the Advanced Manufacturing Technology Research Center (AMRC). This research center will gather the power of the world to provide new methods, new methods, new tools and new technologies for the manufacture of new passenger aircraft. Among the global partners who represent the center, several multinational tool companies are in the forefront. What is this inspiration for us? Secretary Shen Shen said: "With Boeing and its strong global presence and deep technical accumulation, they are fully qualified to say that they have occupied the top position of aviation manufacturing technology. But in this strong position, Boeing still Maintaining a dedicational attitude, we have no idea of ​​steadfastly eating and eating, and continue to unite with our global partners, step by step, and try to push a new generation of aviation manufacturing technology to a higher level. This example should make us The domestic manufacturing industry has gained some profound enlightenment and lessons."

Diamond Grinding Heads

Diamond grinding head: A kind of stone material, ceramic materials and other non-metallic materials of grinding tools, especially involving a with diamond alloy grinding tools for grinding body, it includes substrate and a mill body, in which several mill body clearance to fixed to the substrate, the grinding surface of the grinding head grinding body also set a clearance, among them, the substrate is best by a certain toughness of adhesive materials, The abrasive body is preferably made of diamond alloy material. The utility model has the characteristics of high grinding performance, simple manufacture, low cost, high grinding quality and can be applied to large-scale grinding

Through the processing of various workpiece, to achieve grinding, grinding, polishing effect; According to the use, mainly divided into the following types of grinding head:

1.grinding class: mainly installed in the grinding machine grinding head, the workpiece for grinding, grinding, grinding, processing can be divided into rough grinding and fine grinding.

2.grinding class: generally used for grinding the burr of the workpiece, or the workpiece surface precision is not high processing. Use grinding machine, electric, pneumatic and other tools to high-speed operation to achieve the effect of grinding.

3.polishing class: specially for surface finish (roughness) processing and use of higher requirements, is the need for separate processing process.

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