Abstract
UDC 621.793:631.3
Probabilistic-statistical method was used to obtain the data that are the starting point for forecasting and buil-ding models of the reference curves rough surfaces formed by the electric discharge machining. The relationship between roughness parameters and performance of reanufactured friction pairs has been established.
Keywords: critical pressure, surface profile, roughness, electric discharge machining, oil pockets, proba-bilistic-statistical method, the Weibull law, complex index of roughness, base length, area, volume.