Super-hard materials, as an important material, are increasingly being applied in various technical fields. With the rapid development of the aviation industry, automotive industry, high-speed rail, subway, and tunnel construction, there is a growing demand for cutting tools, drills, and chisels. For some difficult-to-machine alloy materials, conventional carbide tools are often inadequate, necessitating the use of super-hard cutting tools and drills, which offer durability several times that of carbide tools. Additionally, the application of super-hard cutting tools further promotes the adoption of advanced processes such as "turning instead of grinding," "hard state machining," and "form cutting," which can prevent dust and grinding fluid from polluting the environment during production, facilitating clean production. Therefore, super-hard cutting tools can be considered a low-carbon, environmentally friendly green cutting tool and are poised to become the mainstream in mechanical processing. China, as a newly emerged modern manufacturing power, has recently placed great emphasis on the research and development of super-hard cutting tools for high-speed machining. The national "863" program and key scientific and technological projects all include the development and application of super-hard cutting tools. China has introduced thousands of CNC machine tools and precision machines from abroad, which operate at high rotational speeds and place high demands on cutting tools. However, the performance of domestically produced cutting tools is still difficult to meet these requirements, leading to a reliance on imports. Therefore, the development of domestically produced super-hard cutting tools is both necessary and urgent.
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