This article deals with impact of cutting conditions when hard turning of shaped-complex surfaces which are concentration origin of cracks especially in the area of notches. These areas significantly reduce the lifetime and functionality of surface by degradation of surface integrity where are the significant number of destruction cracks. Actual experiments are focused on detection of impact of each individual cutting condition on the generation of residual stress and its impact in each surface and subsurface layer of material. Results and evaluations explain what way is necessary to design and apply cutting conditions when hard turning of shaped-complex surfaces.

This article was funded by the University of Žilina project OPVav-2009/2.2/04-SORO number (26220220101) – “Intelligentsystemfornon-destructivetechnologies on evaluationforthefunctionalproperties of components of X-raydiffraction.”