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China Superhard Materials Network News On April 15th, the 12th China International Machine Tool Show was in full swing at the China International Exhibition Center (New Hall) in Beijing. The high speed of machine tool cutting became one of the highlights of the exhibition. "Or will become a trend." The reporter saw at the scene that whether it is a large foreign machine tool group or a domestic machine tool giant, high-speed, high-efficiency, environmentally-friendly and intelligent machine tools and machine tool processing technologies have been the focus of the exhibition in the most prominent position of the booth. The trader told reporters that high-speed cutting (HSC), hard cutting and dry cutting are considered to be the three most promising technologies in today's cutting process. High-speed cutting has been widely used in high-end industries such as aerospace, military and other countries. The prospects are very broad. So we have given the greatest attention. It is understood that high-speed cutting has the advantages of small cutting force, low heat generation and small deformation of parts. For example, the material removal rate of high-speed cutting is usually 3 to 5 times that of conventional ones, and the cutting speed of aluminum alloy can be increased to 100 m/min or more. , more than 10 times the conventional cutting speed, has been the mainstream of machine tool cutting development. However, at present, China's equipment manufacturing industry and the traditional tool industry with manufacturing as the main service target can not meet the requirements of high-end industries for modern manufacturing equipment and advanced processing technology, and high-performance tools still need to be imported. “In addition to precision design tools, precision tooling, scientific use of tools, precision armored tools, another way to improve tool performance and make it suitable for increasingly high-speed cutting requirements is to use high-performance materials, PCD, CBN, ceramic tools. Metal cermets, coated knives and ultra-fine carbide knives are all high-performance material tools currently produced in China. Due to the special nature of high-speed cutting, most domestic hard alloy materials cannot meet the requirements of high-speed cutting. The use of coated CBN on cemented carbide is one of the current solutions. Superhard tools combine the high hardness of superhard materials with the impact resistance of hard alloys, which is arguably the best choice for high speed tools, but Due to the limitations of manufacturing process and cost, the current super-hard materials are mostly used for the processing of simple-shaped tools such as turning tools and difficult-to-machine materials, and have not been widely used. During the exhibition, technicians from a famous international abrasive manufacturing company were The technical forum held by the company evaluates the opportunities faced by superhard tools in the trend of high-speed cutting of machine tools. Challenge. “The problem we face is the urgent need to solve the cost and manufacturing process; and I believe that with the intensive development of the industry and technological innovation, these problems will be solved, superhard tools will occupy the mainstream position of high-speed toolsâ€, an exhibiting industry The person in charge is confident that when it comes to the development trend of high-speed tools.
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