Application of diamond abrasive tools in the processing of technical ceramics in parts of mining machines

by the improvement of technologies and tools for its production, including in the field of surface treatment quality, which, in turn, determines the reliability and productivity of machines. The use of technical ceramics in designing parts and assemblies of mining machines
allows for significantly improved technical and production characteristics since the quality of the parts' surface treatment is traditionally
carried out with diamond-containing tools. The diamond tools with
ceramic bonds have the highest grinding performance at the abrasive
shaping of ceramics. The tribotechnical characteristics of tools made
of a material with a ceramic structure hardened with microdipersed
diamond grains are investigated in this work. On the basis of the classical approach to the deformation of rough surfaces, a model has been
constructed that makes it possible to estimate the influence of the
structural components of a diamond mineraloceramic tool on the
wear of technical ceramics. The relations for calculation of grinding
productivity, diamond content in the worn layer of the abrasive tool
and the value of specific diamond consumption have been obtained.
Experimental studies confirmed the theoretical conclusions. It has
been established that the greatest influence on grinding productivity
is exerted by diamond granularity, loading and speed modes; diamond concentration significantly determines the relative wear resistance of the abrasive tool. The obtained relations will be useful in
the design of diamond-containing tools for processing technical ceramics, which is increasingly used in the design of mining machines
since its market is growing dynamically around the world.