This article discusses technological aspects of the micromachining of semifinished
products made of a high-density electrically conducting ceramic with the use of electrical
discharge machining (EDM). It is established that an increase in pulse frequency during
the EDM cutting of channels in semifinished products made of an oxide-carbide ceramic
is accompanied by a decrease in the dimensions of the channel’s profile and the productivity
of the machining operation, an increase in the roughness of the channel bottom, and
an increase in wear of the tool-electrode.