Actual Problems in Machine Building 2014 No. 1

Technological Equipment, Machining Attachments and Instruments I International Scientific and Practical Conference « Actual Problems in Machine Building » __________________________________________________________________ 268 developed according to the results of theoretical and experimental studies of vibrating processes of the technological system elements and parameters of the undulations on the outer surface which are dependent on the conditions of grinding. The waviness parameters depend on the level of vibration of the elements of the technological system, with a major impact on the waviness value made by the dynamic behavior of large thin-walled shell. The following basic ways to reduce vibrations of elements of technological systems according to the research were proposed: a rational choice of the grinding mode with taking into account the frequency of rotation of the workpiece and the frequency of its parametrical vibrations; increasing of the shell stiffening when grinding due to changes in design of supports devices – mandrel; processing application with a constant speed on the contour blank portions of the profile, where the increase in the cutting force takes place while reducing the hardness of the workpiece. Keywords : Ceramics thin-walled shells, grinding, technological system, ovibration processes of grinding, surface waviness, technological ways to reduce the waviness.