KSHP. OMD №1-2022

A. L. Vorontsov, D. A. Lebedeva (The Bauman Moscow State Technical University, Moscow)

The study of combined extrusion of tumblers with the co-bottom part.
Part 15. Methodology for calculating technological parameters of restrained extrusion at initial deformation by direct extrusion

The method of calculating the energy-force and deformation parameters of the process of restrained extrusion of nozzles with direct extrusion of the workpiece is described. Extrusion of both non-hardening and hardening materials is considered. In the latter case, the account of the hardening of the extruded material is described in detail. The above formulas make it possible to determine such important parameters of the stamping process as total and specific deforming force, maximum pressure on the die wall, and increase in yield stress.
Keywords: forging; tumblers with the co-bottom part; combined extrusion; stresses; deformations.

A. S. Chumadin (Moscow Aviation Institute, Moscow); M. A. Serafimov (PJSC «Company Sukhoi», Moscow)

About one method of flanging holes

The article explores a new method of flanging holes in a sheet billet. The results of computational and experimental work are presented.
Keywords: method of flanging holes; sheet billet; calculations; experiment.

E. N. Pochekuev (Togliatti State University, Togliatti)

Analysis of kinematics of a double action press based on transfer functions in Matlab

A mathematical model of the kinematics of the drive of the external slider of a double-acting mechanical press has been developed. The transfer functions of the external slider drive mechanism are found. Matlab has developed a program for determining the displacements, speeds and accelerations of the press drive links.
Keywords: double-acting mechanical press; external slider; transfer functions of mechanisms; movement; speed; acceleration.

N. E. Dudusova, A. V. Platonov, N. V. Zhidkova, T. V. Ryabikina, N. P. Yampurin, I. I. Klokov (Arzamas Polytechnic Institute, branch of R. E. Alekseev Nizhny Novgorod State Technical University, Arzamas); G. V. Zvonarev (JSC Nizhny Novgorod 70th Anniversary of Victory Plant, Nizhny Novgorod)

Investigation and optimization of electromagnetic adhesion parameters of winding device using numerical simulation.
Part 1. calculation and investigation of electromagnetic clutch coil using EMS Works program.

The article presents the procedure for calculating the parameters of the coil and the study of electromagnetic adhesion of the winding device, in which it is included. The work was done using the numerical simulation method using the EMS Works program. The results of the studies served as the basis for the design of the electromagnetic clutch unit of the winding device.
Keywords: 3D simulation; numerical simulation; coil of electromagnetic clutch; parameters of electromagnetic clutch; EMS Works; winding device.

N. E. Dudusova, A. V. Platonov, N. V. Zhidkova, N. P. Yampurin, О. N. Starostina, I. I. Klokov (Arzamas Polytechnic Institute, branch of R. E. Alekseev Nizhny Novgorod State Technical University, Arzamas); G. V. Zvonarev (JSC Nizhny Novgorod 70th Anniversary of Victory Plant, Nizhny Novgorod)

Investigation and optimization of electromagnetic adhesion parameters of winding device using numerical simulation.
Part 2. Сalculation and investigation of electromagnetic clutch coil using SolidSimulation

Research work has carried out research in the field of optimizing the design of the mating part of the electromagnetic coupling of the winding device, the assembly unit «Movable unit». Topological research was carried out using the SolidSimulation program. The result of the topological study was a 38% reduction in the mass of the «Pressure Flange» part of the «Movable Unit» assembly.
Keywords: numerical simulation; movable unit of electromagnetic clutch; 3D simulation; program SolidSimulation; strength calculation of movable unit; topological study; optimization of design.

A. E. Tsibulko, E. A. Romanenko (PJSC «NKZM», Kramatorsk, Ukraine)

A variant of the generalized strength criterion for materials based on stress intensity and total octahedral stress

A version of the generalized strength criterion of materials based on stress intensity and total octahedral stress, which can be represented in stress state invariants, is proposed.
Keywords: strength; stress intensity; total octahedral and equivalent stress.

A. R. Shakirov (Moscow Polytechnic University, Moscow); I. Z. Sungatov, G. A. Gareeva (Kazan National Research Technical University named after A. N. Tupolev-KAI, Naberezhnye Chelny)

Creation of 3D-prototypes to improve the efficiency of production activities of machine-building enterprises

The paper proposes the introduction of 3D-prototyping to improve the efficiency of the production activity of an enterprise in the automotive industry, namely, the expansion of production in the field of engineering and the production of 3D-prototypes. This in general can increase the profitability of production activities, since the production of 3D-prototypes for individual orders is much more profitable than mass production.
Keywords: 3D-technologies; 3D-prototyping; 3D-modeling; production of products; profitability of the enterprise.