Movshovich I.Ya., Puzyr R.G.

Calculation of Meridian Stress Emerging at the First Step of the Wheel Rims Radial Rotary Profiling Process

The results of calculations and comparisons for a graph of the value of the meridional stress along the section of a cylindrical blank in the meridional and tangential direction at the first step of profiling without taking into account radius curvature of the instrument.
Keywords: profiling; wheel rim; shell theory; stress; cylindrical stiffness.

Zhbankov Ya.G., Markov O.E., Shvets A.A., Tagan L.V.

Prognostication of Crack Formation when Broaching Blanks with Flat Dies

Crack formation prognostication method at blanks broaching with flat dies has been proposed. Zones, where a crack is most likely to emerge has been identified with the help of this method. Recommendations have been given on prevention of crack formation when broaching blanks with flat dies.
Keywords: broaching; flat dies; cracks; limit plasticity; plasticity resource; deforming path.

Ponomarenko D.A., Moiseev N.V., Skugorev A.V.

Efficient Technology of Manufacturing Gas Turbine Engine Disks Using Heat-Resistant Nickel Alloys

The article considers the features of application of isothermal stamping in air for manufacturing gas turbine engine disks using heat-resistant nickel alloys. Processing methods of blank shaping control have been proposed for the enhancement in the process efficiency and production quality.
Keywords: heat-resistant nickel alloys; isothermal stamping; gas turbine engine disks.

Vaytsehovich S.M., Sobolev Ya.A., Krivenko G.G., Barayev A.V., Polikarov S.P.

Gas Isothermal Forming of Hemispheres for Titanium Spherical Balloons in Vacuum Environment

The article is devoted to an advanced path of manufacturing hemispheres for titanium spherical balloons with the use of gas isothermal stamping method in vacuum environment. A new type of die and an original method of the extraction of a formed hemisphere from a die have been proposed along with the centering device for the upper and lower halves of a die.
Keywords: gas isothermal forming; creep; hemisphere; spherical balloon; superplasticity.

Poksevatkin M.I., Okolovich G.A., Skoryh S.Yu., Lavrinenko A.S.

Automation of the Purpose-built Tooling Material Selection

A model of parametric performance verification of tool steels from a sample collection against technical and economic reference model of the purpose-built tool has been proposed. The model enables the automated selection of the optimal purpose-designed tool steel.
Keywords: automation; tool; tool steel; bulk stamping; reference model.

Shinkarenko O.M., Korchak E.S.

Studying Methodology for the Parameters of the hydraulic press-forging machines

The most frequently measured parameters in experimental studies of hydraulic press-forging machines along with the means of their measurement have been considered in this work. The article includes a detailed study method for the operation of a hydraulic press with the indication of locations for installing relevant sensors and also the interpretation and analysis of the experiment results.
Keywords: pressure; linear displacement; valve; movable cross-rail; manifold.

Bubnovskaya I.A., Skryabin S.A.

Study of Unsteady Thermal Processes and Thermal Deformations at Forge-Rolling of Blanks Manufactured from Nickel Alloys in Oval Calibers

A study of unsteady thermal processes and thermal deformations at forge-rolling of blanks made of nickel alloys has been conducted with the use of mathematical and simulation modeling.
Keywords: hot forge-rolling; mathematical model; thermal deformations; forge rolls.

Agapitova O. Yu., Byval'tsev S. V., Zalazinskiy A. G.

Features of the Blanks Hydromechanical Extrusion Process

DEFORM 2D software suit has been used to conduct simulation modeling of direct and hydromechanical extrusion processes of hardly-deformed materials. Differences in stress-strain state and energy-power parameters of these processes have been identified. The optimal thickness of a lubricant layer at hydromechanical extrusion have been defined.
Keywords: hydromechanical extrusion; direct extrusion; simulation modeling; DEFORM 2D software suit; lubricant.

Odinokov V.I., Bondarenko S.V.

Modeling the Deformation Process of Cylindrical Blanks with Inner Cavities

A mathematical model has been built for the free upsetting of a cylinder with two inner cavities of different size at the hydraulic press. A study on this model adequacy has been conducted as against experimental data.
Keywords: free upsetting; inner cavities; calculation method; mathematical model.

Antsyfirov A.A., Krivoshein V.A., Mayestrov Yu.V.

The Importance of Implementing Production Control Systems in Metal Working by Pressure

The article demonstrates that the application of production processes control and optimization systems in the industry of metal working by pressure enables the capability of operational planning, monitoring and correction of production operations, estimation of parts batch production time and also allows the considerable increase in production capacity and decrease in the cost price of parts production.
Keywords: optimization; control; MES; metal working by pressure; SCADA; planning.