The purpose of this article is a comparative analysis of the parameters of residual stresses in the steel HSS-5 after turning with a change in the longitudinal feed. The tasks posed in this study are: calculating the impact of the feed during turning on the parameters of residual stresses formed in the surface layer of the material; comparing the results of radically different methods for studying residual stresses. When conducting research, the method of XRD-analysis and the mechanical method for calculating residual stresses were used. The presented methods are most widely used in the determination of technological residual stresses in samples of various metals and alloys. These methods are widely used both under laboratory and in production conditions; they are characterized by satisfactory accuracy and convergence of results.

The article presents the results of the research on the influence of cutting modes on the parameters of surface roughness during finishing of holes in mixed packages containing composite and metal materials. The object of the study is a mixed package containing layers of polymer composite material (CFRP), as well as layers of titanium and aluminum alloys. The main technological equipment used in the study is an automatic drilling machine. Cutting tool -carbide six-toothed reamer. For carrying out of researches ranges of variation of modes of cutting have been chosen and the plan of experiment by means of software Statistica 6 is made. Two factors are considered under the plan of experiment: speed of cutting and delivery, the parameter of the allowance on expansion is introduced as the block factor. The models of multifactor dispersion analysis, which determine the influence of modes on the roughness of holes, were obtained empirically. Optimization of cutting modes has been carried out, the surface of desirability has been constructed, and recommendations on the choice of technological parameters of the process have been given.

-The paper describes a complex method for forming aircraft panels as well as automated plants for bending, peen forming, sanding, and shot peening. It also describes calculation methods for technological conditions which compensate for the effect of the residual stress on the shape of parts.

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The article analyzes methods used to identify technological parameters for combined forming of double curved skins. The combined method involves elastic plastic bending and shot peening. The results of finiteelement simulation of these technological processes and their combinations are described. The results of experimental verification of the methods are presented.