The development proved to be effective on a mass-production scale.
On Tuesday, October 19, it became known that scientists of Novosibirsk State Technical University (NSTU) have created an innovative composite material based on aluminium oxide with carbide additives. It is proposed to use it for the manufacture of multifaceted cutting plates designed for processing metals, particularly hardened steels, the university’s press service reports.
“The material can be mass-produced using the most cost-effective modern technology. For this type of ceramics, the technology of hot pressing is widely used in the industry. Its disadvantage is the limited number of parts that can be produced at a time. In contrast, we use free sintering. For that we use furnaces that allow the simultaneous sintering of large batches of products, literally thousands of pieces, that is, mass production becomes more profitable,” said Associate Professor at the Department of Materials Science in Mechanical Engineering, NSTU, Sergei Veselov.
The challenge of the development was to find the optimal composition of ceramics that does not lead to chemical reactions during sintering, which deteriorate the properties of the finished material. The cutting plates from the new composite were tested at two enterprises of Novosibirsk. Their superiority in comparison with the domestic analogues by all main parameters was established. And they are not inferior to the European plates in terms of quality and have lower production costs.
Let’s remind that scientists of the National State Research Technological University MISIS and South Ural State University together with specialists of the Joint Institute for Nuclear Research and colleagues from Egypt, Saudi Arabia, and Belarus have developed a radio absorbing (invisible for radars) composite material based on polymer matrix with filler from hexaferrite and nano graphite.
