Аннотация
It is shown experimentally that a formation of two-phase metallocarbon permanently renewing layer on the working surface of graphitic electrode in the process of dimensional machining by electric arc appli- cation takes place. The physical mechanism of erosion resistance of graphitic electrode during the dimen- sional machining is described. The method of mathematical planning of experiment is used for established of cybernetic inter coupling of relative linear wearing of graphitic electrode with electrical and hydrodynamic modes of dimensional machining by means of electric arc application, and also with geometrical parameters of electrodes. It allows to control wearing of electrodes in the process of dimensional machining and to fore- cast wearing.