- Dec 04, 2017 -
The emergence of a new type of ceramic tool is the result of a technological revolution that human beings first revolutionized their mechanical cutting through the use of ceramic materials. As early as the early 20th century, Germany and the United Kingdom have begun to seek to replace the traditional carbon tool steel tool with ceramic tool. Due to its high hardness and high temperature resistance, ceramic materials become a new generation of cutting tool materials. However, due to its well-known brittleness, ceramics are limited. Therefore, how to overcome the brittleness of ceramic tool materials and improve their toughness has become a hot issue in recent centuries The main topic of tool research. Ceramic applications are also growing. The main reasons why the engineering and technical community are trying their best to develop and popularize ceramic knives are to: (i) greatly increase the production efficiency; and (ii) to the global depletion of tungsten, the main constituent of high-speed steels and cemented carbides. The early 1980s estimated that proven tungsten resources throughout the world have been available for only 50 years. Tungsten is the scarcest resource in the world, but its consumption in cutting tool material is very large, which leads to the rising of tungsten ore price, which has been multiplied several times in several decades, which to a certain extent also promoted the development of ceramic cutting tools Promotion, research and development of ceramic cutting tool material has made remarkable achievements. So far, the materials used as ceramic tools have been formed into alumina ceramics, alumina-metal ceramics, alumina-carbide ceramics, alumina-carbide cermets, alumina-nitride cermets and the latest research success Boron nitride ceramic tool. As far as the world is concerned, the German ceramic tool has been used not only for ordinary machine tools but also as an efficient, stable and reliable tool for CNC machining and automated production lines. Japanese ceramic blade in the product range, output and quality are internationally advanced level. The United States has been the world leader in the development of oxide-carbide-nitride ceramic tools. China's ceramic tool development and application also made many major achievements.