Cutting tool tips
Superhard tools are mainly made of diamond and cubic boron nitride. Among them, synthetic diamond composite (PCD) tools and cubic boron nitride (PCBN) tools dominate.
Many cutting concepts, such as green machining, grinding by car, grinding by grinding, hard machining, high-speed cutting, dry cutting, etc., are all due to the application of super-hard tools, so super-hard tools have become impossible in cutting. Missing important means. With the advancement of science and technology, the rapid development of the manufacturing industry, the rapid development of CNC machining technology, and the widespread use of CNC machine tools, the production and application of super-hard tools has become increasingly widespread.
PCD and PCBN tools have been widely used in the traditional fields of machinery, metallurgy, geology, petroleum, coal, stone, construction, high-tech fields such as electronic information, aerospace, defense and military, and emerging industries such as automobiles and home appliances. Greatly promoted the rapid development of cutting processing and advanced manufacturing technology, and the market has expanded rapidly. According to reports, China's current PCD, PCBNCBN annual output of 400,000 cutting tools, sales of less than 200 million yuan, and the authoritative department survey shows that The potential market sales of the two types of tools will exceed 1.5 billion U.S. dollars. It can be said that the ultra-hard tool industry has a lot to offer. In spite of this, for superhard cutting tools in China, there is still a lot of work to be done in order to catch up with this rapid development. As superhard tools are mostly high-end products, manufacturing strength is high, and the technical threshold is high. Controlled by foreign manufacturers, China has only a small share. According to a survey conducted by a domestic consulting site based on surveys of manufacturers and downstream users in the ultra-hard tool industry, it was found that in 2009, the global market share of composite superhard tool material market Several companies are all foreign companies, including Element Six (30%), DI (20%), Sumitomo (18%), Korea (9%), MegaDiamond (4.5%), and TomeiDiamond (4.5). %), Dennistools (4%), several companies accounted for 90% of the market.
It can be said that China's super-hard tools are still in the initial stage, and there are some problems that restrict the rapid expansion of cutting tool companies, mainly in the following points. 1. Domestic PCD, PCBN material tool material uniformity is poor, and its tool quality is not stable. 2. The domestic superhard tool sharpening manufacturing equipment technology is backward, and it is still unable to provide tool sharpening machine tools that are equivalent to foreign companies. 3. China's ultra-hard tools have not yet formed a standardized, serialized, resulting in poor product quality consistency. 4. The basic research on application of superhard tools is not deep enough, and it is not systematic enough to correctly guide the downstream enterprises to apply properly. 5. China's super-hard tool also has a series of problems such as the connection and clamping method with the machine tool, the blade clamping mechanism, the tool material and structure, the tool clamping measures in the high-speed spindle, and the dynamic balance of the rotary tool. 6. The high-precision and complex structure of super-hard tool design and manufacturing technology is not enough, such as superhard cutting tools for processing automotive, aerospace key parts Chinese companies can not manufacture.
