Titov V.A.

Creation of methods for plastic shaping of structures from a new welding alloy of the Al - Mg - Transition metals - Rare earth elements system with high mechanical properties for aerospace engineering

Creation of methods for plastic shaping of structures from a new welding alloy of the Al - Mg - Transition metals - Rare earth elements system with high mechanical properties for aerospace engineering

Methods have been developed to ensure high mechanical properties during plastic forming of structures of a new welding alloy of the Al - Mg- Transition Metals - Rare earth elements system for aerospace engineering. A two-stage approach to deformation has been developed, when at the first stage deformation is performed under conditions of large shear deformations for a more uniform redistribution of phase components and a decrease in the size of the grains - homogenization of the material due to mechanical action, and at the second stage - the formation of the structure.

Creation of methods for designing the processes of shaping engineering structures under viscoplastic deformation of homogeneous, eutectic strengthened and powder materials

In this work, using a unified theoretical approach, the analysis of the processes of visco-plastic forming of typical mechanical engineering structures with homogeneous and structurally heterogeneous materials. The theoretical approach is based on a closed system of equations of the theory of plastic flow of continuum mechanics, taking into account the visco-plastic properties of materials. This approach made it possible to provide system design of structural forming processes.

Creation of theoretical bases of resource saving technologies of isothermal forming of thin-walled elements of mechanical engineering in wide temperature range and velocity deformation

Оснастка, для деформування структурно-неоднорідних матеріалів, що встановлена на гвинтовому фрикційному прес-молоті

Based on generalized theoretical results of visco-plastic flow of metal in different aggregate (solid and liquid-solid) states under a wide range of temperatures and strain rates the relationship of the isothermal load parameters, structure and physic-mechanical properties of the material extruded from thin-walled workpieces elements that have a high degree of approximation of their shape to the shape of the details (accuracy) was obtained. A general theory and generalized approach for the calculation process of forming structurally heterogeneous bodies was created.

Research of structure formation processes and creation of the theory of intensive plastic deformation of aluminium-lithium and titanium alloys

Загальний вигляд комп'ютаризованої установки

Based on an analytical review of scientific publications the goal and general guidelines were grounded. The prospects of using structurally modified and structurally inhomogeneous materials based on titanium and aluminum alloys were shown.

The analysis of power loading schemes of isothermal extrusion was made. Typical schemes of loading as a result of structural and logical analysis were classified depending on the impact of shear stresses, which are proportional to the forces of friction, on the overall stress state in the cell strains.