The problem of exploitation of diamond grinding wheels with metal coating for their
grains including detonation ultra-dispersed diamonds to increase functional reliability to maintain
the initial integrity of grains in the pressing and sintering of diamond-metal composites in the tool
production is considered. One problem is that the presence of detonation ultra-dispersed
diamonds in the grain metal coating of diamond powders not only improves the coating functional
reliability in protection from destruction in the subsequent pressing and sintering in the
production tool, but also resistance of such coating to the opening of the diamond cutting basis of
the grains on the grinding wheel working surface that come into working contact with the material
being processed. An analysis of the features of an effective exploitative destruction of detonation
ultra-dispersed diamonds in the metal coating using electric current in the tool of the diamondspark
grinding processes is presented