Application of the hottest ceramic materials in cu

2022-08-14
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Application of ceramic materials in cutting tools

in daily life, we have kitchen knives for cutting vegetables, pencil sharpeners, paper cutting tools, glass knives for cutting glass, and artificial diamonds embedded in the front end. In industry, cemented carbide tools are generally used for cutting. However, with the development of modern manufacturing technology, a variety of new difficult to machine materials are widely used in products. The traditional cemented carbide tools have been difficult to meet the production needs, and ceramic tools are favored by people because of their excellent cutting performance and high performance price ratio. When using ceramic tools to process steel, cast iron, hardened steel, high manganese steel and nickel base superalloys, the tool life can be several times or even dozens of times longer than that of cemented carbide tools. In production, it can not only be used in general turning, boring and milling, but also has been successfully used in hole machining tools; In addition to being used in ordinary machine tools, it can also be effectively used in high-efficiency equipment such as CNC machine tools. It is internationally recognized as a tool with the most potential to improve production efficiency

since the 20th century, with the development of the universe, the rise of atomic energy industry and the rapid development of electronic industry, the development of ceramic tool materials has also moved from traditional ceramics to multiphase ceramics. And has experienced different stages of development: in the 1950s, alumina ceramics were the main; In the 1960s, he began to study non oxide ceramics; From the late 1970s to the early 1980s, silicon nitride ceramics and phase change toughened ceramics were developed; From the late 1980s to 1990s, ceramics with various toughening mechanisms have made great progress, and ceramic materials have entered the stage of multiphase development. Since the 1980s, due to the continuous development of toughening and strengthening mechanisms of ceramic materials such as particle dispersion reinforcement, whisker toughening and phase transformation toughening, binary ceramic materials developed by using these mechanisms have also made great progress, such as using SiCp, TiCp, TiB2 (subscript p indicates particles, the same below) as dispersion phase to strengthen oxide ceramics such as Al2O3 and ZrO2 and non oxide ceramics such as SiC and Si3N4; The composite ceramics of Al2O3, ZrO2, Si3N4, mullite and glass toughened by SiCw (subscript w represents whisker, the same below); The toughening of Al2O3, mullite and other multiphase ceramics with ZrO2 has developed rapidly. Many high-performance composite ceramic materials have appeared and have been popularized and applied in some industrial fields, gradually forming a certain scale industry. In recent years, I'll show you the operation process of the tensile testing machine. Based on the binary multiphase ceramics, people began to use the idea of the synergistic effect of various toughening mechanisms to carry out the exploration of multiphase ceramics at three different levels of theory, experiment and technical research, and achieved gratifying results, raising the strength and toughness of ceramics to a new level, The development of multi-component multiphase ceramics has become one of the most eye-catching cutting-edge topics in the cross field of material science and solid mechanics at present, and is being widely valued by all countries in the world, which will help Xinda to realize the varieties of 3D printing consumables including general plastics, plastic alloys, engineering plastics, special engineering plastics and bioplastics

compared with superhard tools such as diamond and CBN (cubic boron nitride), due to the relatively low price of ceramics, some people believe that the new factory with an area of 7000 square meters has officially begun to use modern ceramic tools, and the continuous improvement of material properties will become one of the three main tools for high-speed machining together with coated carbide tools, diamond and CBN superhard tools in the future. The emergence of new ceramic cutting tools is the result of a technological revolution in which human beings reformed mechanical cutting by using ceramic materials for the first time. Ceramic materials have become a new generation of tool materials because of their high hardness and high temperature resistance, but they are also limited by brittleness. Therefore, overcoming the brittleness of ceramic tool materials and improving their toughness have become the main topic of ceramic tool research in recent 100 years. It can be expected that the use of various new ceramic tool materials will promote the development of high-efficiency machine tools and high-speed cutting technology, and the promotion and application of high-efficiency machine tools and high-speed cutting technology will further promote the use of new ceramic tool materials

with the continuous deepening of the research and development of ceramic materials subscribed by taozhongrong Xinchuang for 8.7848 million shares, the application proportion of ceramic cutting tools in metal cutting and processing industry will inevitably continue to expand; With the development of aerospace industry, ceramic tool materials will make greater contributions

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