Published in Russian Engineering Research
AbstractThe effectiveness of repeated shot treatment in increasing the fatigue strength of high-strength 30ХГСН2А steel parts is established experimentally. Repeated shot treatment not only restores the initial life but increases it significantly.
Published in Russian Engineering Research
AbstractBasic principles are outlined for the construction of an effective smart management system permitting the manufacture of unique products.
Published in Russian Engineering Research
AbstractThermofrictional cutting with pulsed cooling is investigated by the finite-element method, using Deform 3D Machining software. On that basis, the cutting mechanism proposed earlier is confirmed.
Published in Russian Engineering Research
AbstractA design procedure for nonstationary production systems is outlined. On the basis of the generalized mathematical model, specific models for components of nonstationary systems are developed. In particular, a model for slipway finishing of a part prior to welding in submarine hulls is proposed.
Published in Russian Engineering Research
AbstractModels based on regression analysis for predicting the operational efficiency of high-pressure roller crushers are considered. A systematized and structured production database is created and statistically analyzed. The consistency of the data is verified. The parameters with the greatest influence on the productivity are identified. The ba...
Published in Russian Engineering Research
AbstractThe thermal influence of the tooth geometry in a conical gear is considered for the case of milling by a cutting head. Formulas are derived for the maximum temperature and the temperature field in cutting as a function of the geometric parameters of the tooth. On that basis, research in a virtual environment corresponding to the actual cond...
Published in Russian Engineering Research
AbstractFriction stir welding of butt joints in aluminum alloys is considered. Experiments show that, with disruption of the welding temperature and time, defects localized at the boundary of the weld seam are observed: specifically, gaps due to the differential deformation of the seam and the matrix.
Published in Russian Engineering Research
AbstractFor surface texture with microprojections bounded by concave semicircles in two-dimensional space, analytical formulas are derived for the probability of filling of the surface layer with material, both within cross sections and layers and over the volume as a whole. Comparison of probability estimates obtained by graphical and analytical m...
Published in Russian Engineering Research
AbstractFor surface texture with microprojections bounded by a mixture of concave and convex semicircles in two-dimensional space, analytical formulas are derived for the filling probability of the surface layer, both within cross sections and over the volume as a whole. Comparison of probability estimates obtained by graphical and analytical metho...
Published in Russian Engineering Research
AbstractThe stress state of teeth in peripheral sections of the contact zone must be taken into account in calculations of hardened gears with local tooth contact.
