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TECHNOLOGY AND MACHINES

DOI: 10.34641/TM.2023.248.2.009
Yang Yang, Wang Hao, Wang Haoyu — Actual problems of design and development of effective control and measuring devices for machine tool systems

The article presents a review of current problems of design and development of effective control and measuring devices of machine-tool systems. It points out the possibility of a fundamentally different approach to the development of sensors used in control and measuring devices in the form of products of functional electronics — intelligent sensors with frequency output.
Key words: sensors with frequency output, functional electronics, linear and angular motion, machine system, control and measurement

DOI: 10.34641/TM.2023.248.2.010
Kuznetsov P. M., Kavernaya I. N., Kostykova O. S., Feofanov A. N. — Automation of contouring accuracy control on CNC machines

The article deals with the issue of increasing the accuracy of contouring while increasing the productivity of the production of aircraft parts. The possibility of using the advantages of new materials of the cutting part of the tool is significantly limited by the increase in the error caused by the dynamic errors of the control system for the movement of the actuators of the technological equipment. An approach is proposed to reduce the error by automating the control of dynamic error values.
Key words: dynamic errors, control, machine tool, productivity, processing error

TECHNOLOGY AND EQUIPMENT FOR MECHANICAL AND PHYSICAL-TECHNICAL PROCESSING

DOI: 10.34641/TM.2023.248.2.011
Polyakov A. Yu., Basharimov M. V., Koroteev A. O. — Features of machinability of cast irons of various structures

The article defines the main features of the machinability of cast irons with increased performance properties, including in matters of their structure from the standpoint of eutecticity analysis, recommendations for the regime implementation of cutting processes with a tool of different heat resistance.
Key words: cast iron, eutecticity, structure, machinability, cutting, cutting conditions, alloying, carbides

METAL SCIENCE AND HEAT TREATMENT

DOI: 10.34641/TM.2023.248.2.012
Nizhegorodov A. I. — Electric furnace with a rotary hearth platform for heat treatment of small parts in mechanical engineering

The article deals with an electric oven with a rotary hearth platform for heat treatment of small metal parts: grover, spring, disc-type, toothed washers, retaining rings and other small parts in mechanical engineering.
Key words: heat treatment, electric furnace, rotary hearth platform, productivity

WELDING, RELATED PROCESSES AND TECHNOLOGIES

DOI: 10.34641/SP.2022.1051.6.044
Lukin M. A., Byleev A. S., Zavyalov S. K., Pismenny A. A. — Features of friction stir welding of aluminum alloy AD1 on a universal vertical milling machine 6V11

The article considers the possibility of friction stir welding of parts made of aluminum alloys on a 6V11 vertical milling machine. To determine the optimal welding mode, mechanical tests of the welded samples, as well as metallographic studies, were carried out. The design of the tool for FSW has been developed, the possibility of welding of stable quality, up to 80 % of the static strength of the base metal, at a right angle between the axis of rotation of the tool and the direction of the feed rate of parts has been shown.
Key words: friction stir welding, welding of aluminum alloys, tool for friction stir welding, welding mode optimization

METHODS AND DEVICES FOR CONTROL AND DIAGNOSTICS OF MATERIALS, PRODUCTS

DOI: 10.34641/TM.2023.248.2.013
Sokolov K. A., Torpachev A. V. — Development of concentration control sensors oxygen with a reduced time to the measurement mode for aerospace complexes

One of the most important and significant issues on the issue under consideration is the creation of oxygen concentration monitoring sensors with a minimum time to enter the measurement mode. A comparative study of various solutions to this issue is given in this article.
Key words: oxygen concentration, monitoring sensors, measurement mode, accelerated warming up, forced cooling

PRODUCT QUALITY MANAGEMENT. STANDARDIZATION. ORGANIZATION OF PRODUCTION

DOI: 10.34641/TM.2023.248.2.014
Zagidullin R. R. — Analysis of the criterion in the tasks of operational scheduling

The article discusses the features of using the Cmax criterion in relation to tasks of operational scheduling (OCS) in mechanical engineering, in contrast to scheduling theory, gives recommendations on its use, and also considers the inconsistency of using pull and push strategies, which can be represented in the OCS using directives product release dates.
Key words: Cmax criterion, production system performance, regular criterion, release deadlines, priorities

DOI: 10.34641/TM.2023.248.2.015
Baranov N. E. — Formalization of the problem of determining the optimal control in a multilevel automated control system for production

A formalized solution of a linear-quadratic problem of control optimization in a multilevel Computer Integrated Manufacturing System is found in the presence of various optimality criteria at each level.
Key words: multilevel computer integrated manufacturing system, optimality criteria hierarchy, linear-quadratic problem of control optimization

INFORMATION

Results of the IX International Industrial Forum "NDT Territory 2022. Non-destructive testing. Tests. Diagnostics"

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