e3

	Journal "Tekhnologiya Mashinostroeniya"	ISSN 1562-322X
	Contents (�03 2022)
to russian

STRUCTURAL MATERIALS, METAL SCIENCE

DOI: 10.34641/TM.2022.237.3.014
Vasiliev A. A., Osinnikov A. A., Gorsky A. I., Murzakov M. A., Grezev N. V., Ponomarenko D. V., Shiganov I. N. � Influence of linear energy of hybrid laser-arc welding on the properties of low-alloy steel welds

The influence of heat input during hybrid laser-arc welding of low alloy steel of X52 and X80 gradeswith a thickness from 8 to 12 mm on the mechanical properties of the weld is considered. The optimal ratio of the input energy of the laser beam and the welding arc in the hybrid process has been established. The optimal welding speeds for hybrid laser welding with a pulsed welding arc using a fiber laser with a power of up to 10 kW have been determined.
Key words: hybrid laser arc welding, pulse arc, low alloy steel, fiber laser, heat input

PROCUREMENT PRODUCTION

DOI: 10.34641/TM.2022.237.3.015
Dronov E. A., Barakhov V. I. � Determination of the cause of quartz sand shedding during casting of a cast-iron billet of a diesel engine cylinder using X-ray computed tomography

Presented in the article are tomographic research results obtained for distribution of cladding mix components volume fractions in casting mold unit cells in the areas of silica sand sloughing during casting of blank for diesel engine cast-iron cylinder. X-ray computational tomography was used to determine volume fractions of silica sand, phenolics and pores within the area of sand sloughing as well as to identify the main cause of sloughing. Given herein are tomograms obtained for cross-sections of diesel engine cast-iron cylinder blank with defective area occurred where silica sand mixed with cast iron during casting process.
Key words: tomographic research results, cladding mix, casting mold, sloughing of sand during casting, diesel engine cylinder, blank

MECHANICAL ASSEMBLY PRODUCTION

DOI: 10.34641/TM.2022.237.3.016
Krivoshapko S. N., Ivanov V. N. � Algebraic surfaces for rational ship hulls�

The choice of optimal shape of ship hull surface is one of the main problems of ship architects and designs. A choice of the form is based on empirical formulae or on intuition of designers. In a manuscript, a method of determination of explicit algebraic equations of theoretical shape of ship hull with three main cross-sections given in advance and coinciding with the design waterline, the midship section, and with the main buttock line is given. The forms of the lines in the main cross-sections are chosen from conditions taken in advance. These surfaces are called hydrodynamic surfaces. A method is illustrated for three threes of main cross-sections of the ship hulls i.e. nine hydrodynamic surfaces were constructed. All algebraic equations were converted to parametrical forms for comfort of computer modelling.
Key words: hydrodynamic surface, buttockline, waterline, midship section, ship hull, optimization of ship hull shape

TECHNOLOGIES AND MACHINES OF WELDING PRODUCTION AND RELATED PROCESSES

DOI: 10.34641/TM.2022.237.3.017
Fedotov I. V., Suchkov A. N., Ivannikov A. A., Dzhumaev P. S., Chernavskaya E. R., Sevryukov O. N. � Investigation of microstructure and mechanical properties of soldered compounds of silicon carbide ceramics obtained using Ti-Zr-Nb-Be system solder�

Soldered compounds of reaction-sintered silicon carbide (SIC.sintered) were obtained using fast-hardened solder Ti-40Zr-8.5Nb-1.5Be (wt. %). The microstructure of soldered joints was studied using scanning electron microscopy and microrentgenospectral analysis. It is shown that the seam mainly consists of a silicon matrix with inclusions of silicon carbide and silicides. A possible mechanism of crystallization of the solder joint during cooling is described. Mechanical tests of soldered joints on the cut and measurement of microhardness were carried out.
Key words: ultrafast quenching, active soldering, ceramics, silicon carbide, shear strength, crystallization

SPECIAL TYPES OF TECHNOLOGIES

DOI: 10.34641/TM.2022.237.3.018
Zharkevich O. M., Zhukova A. V., Nurzhanova O. A. � Analysis of shaft defects of technological machines

This article will consider the main types of defects of shaft-type parts, as well as the causes and ways to eliminate them. These defects lead to deviations in shape, surface, size changes and violation of the surface layer.
Key words: shaft, defect, repair, wear, restoration, defect

MATHEMATICAL MODELING, NUMERICAL METHODS, SOFTWARE PACKAGES

DOI: 10.34641/TM.2022.237.3.019
Kurbanmagomedov K. D. � Algorithmic and software implementation of the methodology for the study of the phase complex of multicomponent inorganic chemical compounds�

The algorithm and methodology for the study of the phase complex of multicomponent inorganic chemical compounds are given and are applicable for the analysis of chemistry with and without complexation for both three-component systems and for quadruple and fivefold systems. A software package has been developed that allows automating the process of analyzing chemistry and ultimately solving the problem of synthesizing a complex chemical compound in the shortest possible time, taking into account the initial requirements. On the basis of the synthesized chemical reactions and the obtained compounds, databases on their thermophysical parameters can be formed, which can be used as reference data, as well as for monitoring the technological process in real time in order to ensure the required properties.
Key words: algorithm, phase complex, database, methodology

AUTOMATION AND CONTROL OF TECHNOLOGICAL PROCESSES AND PRODUCTIONS, CAD

DOI: 10.34641/TM.2022.237.3.020
Kulagin A. K., Feofanov A. N., Grishina T. G. � Development of an automated system for selecting the characteristics of the functioning of IT infrastructure technical support�

Currently, information systems are used in all spheres of human society. The main criterion for optimal operation of the enterprise information system is full automation. This is especially important when you need to process huge data streams. In this regard, the implementation of automated control systems is extremely necessary. They significantly increase efficiency in all areas of production and improve employee productivity. At the same time, special attention should be paid not only to the creation of a unified information environment, but also to the possibility of assessing the workload and functionality of its individual components. This possibility is provided by the application of the basics of building functional models of subsystems.
Key words: modeling, automation, IT infrastructure, data management system, technical support

EDUCATION AND TRAINING

DOI: 10.34641/TM.2022.237.3.021
Zharov M. V. � Prospects and possibilities of using modeling in the AnyLogic software environment for teaching students in technical areas of training�

In this paper, the possibilities of using the technology of simulation of the production environment of metallurgical and machine-building industries using the AnyLogic software package are considered. The prospects of using simulation modeling in the Any-Logic environment in the training of specialists in technical areas are determined.
Key words: simulation modeling, production environment, mechanical engineering, machine-building workshop, workshop sites, workshop design, material flow, logistics in production, educational process, process visualization, teaching technologies, technical disciplines

ECONOMICS OF MECHANICAL ENGINEERING, ORGANIZATION OF PRODUCTION

Zagidullin R. R. � A comprehensive model for determining the optimal launch batch for small and medium-sized machine-building enterprises�

The article discusses a complex mathematical model for determining the optimal launch batch in a machine tool system for small and medium-sized machine-building enterprises based on a multi-product network.
Key words: launch batch, power determination problem, boolean variables, mathematical model, method for determining the optimal launch batch

��: 127015, ��, �/� 65.
��.: +7 (495) 640-7903
e-mail: ic@ic-tm.ru

� 2008-2024, ��
�� - www.itsite.ru