Machinability of nitride ceramics with abrasive powders and their addition to diamond powder

Development of modern engineering is related to development and introduction of new materials and progressive technological processes of their treatment. Unique properties of ceramics allow them to be used in various fields of technology, including, as a cutting instrument and the machines, devices, radio and electronic apparatus details. Due to the high hardness of materials, tooling of instrumental purveyances is possible only with synthetic diamonds, but synthetic diamonds are quite expensive there, so it is necessary to solve the problem of replacing expensive materials with cheaper ones. Improvement of ceramics treatment methods is related to study of conformities to law of difficult multivariable process of polishing. Productivity, quality of surface, wear and firmness of instrument, power charges are determined by properties of ceramics, descriptions of diamond instrument, modes and by technological features of equipment. Providing high quality surface at exact ceramic details is a difficult requirement specification. Next to a subzero roughness that is limited to parts of microns, a specific requirement is absence of surface defects (coulisse, miсrocracks, miсrocavities). As ceramic materials are fragile then at loading under act of cutting or polishing instruments of good from them tend to spalling. Point loading during a small enough flowage result in that under act of grains of diamond of ceramics, feeling strong mechanical and thermal loading, painted as a result of it there is a ditch width of that exceeds the area of collision of diamond grain with material.