 | |||||||||
CONSTRUCTIONAL MATERIALS, PHYSICAL METALLURGY Chudina О. V., Eletskiy А. V., Fedorovich S. D., Terentev E. V., Sliva A. P., Bocharov G. S., Zilova O. S. — Laser alloying of constructional steels with nanocarbon materials The work is devoted to surface strengthening of constructional steels with nanocarbon materials through the use of laser heating. It is shown that during processing of technical iron, a hardened layer with a thickness of 20...70 μm and a hardness of 950 HV and higher is formed due to the formation of eutectics, cementite, martensite, cellular substructure and grain refinement. The friction coefficient of technical iron alloyed with carbon nanomaterials is 20...30 % lower in comparison with non-strengthened samples. SHAPING TECHNOLOGY Popova T. V., Vyatkin A. G. — Analysis of factors affecting the effectiveness of the technological lubricants application at cold forging The article discusses factors influencing the effectiveness of technological lubricants during cold forming. In this paper, this is the geometrical parameters of the workpiece and the degree of its deformation. These factors are chosen as the most optimal, based on literary sources. Also considers the conditions of application of lubricant for most effective strain. The work proposes to experimentally establish the degree and quality of influence of the relative dimensions of the workpiece and the degree of deformation on the effectiveness of technological lubrication in cold bulk stamping. To assess the degree of influence the considered factors on the efficiency of technological lubricants during cold forming was planned and carried out an experiment. In this experiment the studied factors varied on two levels. The results of this experiment showed that the maximum effect on the effectiveness of the lubricant have the relative sizes of the workpiece. At the same time increase of this ratio the efficiency of the lubricant increases. The influence of degree of deformation is much lower, and with increasing degree of deformation the effectiveness of the lubricant decreases. We analyzed the results of earlier studies of the effectiveness of lubricants: cold upsetting using different types of technological lubricants aluminum and steel billets with various relative sizes and degrees of deformation. The results of these studies fully comply with the conducted experiment. Moreover, during the studies has shown the case in which the use of lubrication in cold bulk stamping inefficient, and this corresponds to the results of the conducted experiment. In the end, was made shared conclusions about the effectiveness of lubricants for billets, depending on their relative sizes and degrees of deformation. The influence of considered factors on the effectiveness of lubricants not depends on the workpiece material. MACHINE-TOOL AND CUTTING TOOLS PRODUCTION Solomentsev Yu. M., Feofanov A. N., Bondarchuk N. D. — Problems of the machine-tool industry world market in 1980—2017 In a highly competitive global production market, increasing labor productivity is the key to success. The labor productivity increasing largely depends from modern equipment, including machine tools. The level of investment in machine tools is a sign that the country is investing with a vision for the future, by taking into account a more highly skilled workforce. RECEIPT TECHNOLOGY OF THE PERMANENT CONNECTIONS Starostin N. P., Gerasimov A. I., Danzanova E. V., Botvin G. V., Andreev B. I. — Efficiency of the polyethylene pipes electrofusion welding at low ambient temperatures The research results of electrofusion welding of polyethylene pipes PE100 SDR11 63Ѕ5,8 at ambient temperatures below permissible without the use of heated temporary covering are presented. The developed technology efficiency of electric welding at low temperatures is shown on the basis of the tests results of welded joints peeling. SPECIAL TECHNOLOGY Balaev A. F. — The technology effectiveness analysis of bearing rings vibro-mechanicle stabilization on the basis of the experimental research results The article presents a comparison of the vibromechanical technology of bearing rings stabilization and thermal tempering in terms of efficiency, energy consumption and residual stresses value after processing. The results of an experimental study are presented, from which it can be seen that the energy consumption at vibromechanical stabilization is ten times smaller, and the productivity is several times greater than for thermal tempering. In this case, vibromechanical stabilization allows to remove residual stresses more efficient. Bychkov D. I., Vyatkin A. G. — Determination of elastic deformations when aluminum blanks are placed on flat supports The study, which was experimental dependence for calculation of elastic deformations at the contact of the base surface of the aluminum workpiece with flat poles and fixtures that allow us to determine the error caused by the clamping forces of the aluminum billet in the fixture. Bichurin Kh. I., Mashkov V. N., Mashkov V. V. — Chemical composition of multifunctional diamond coatings In this work are presented the chemical coverings of ultrafine diamonds coatings. METROLOGY Yangirov I. F., Maksudov D. V., Kalanov Kh. H., Khanov A. R. — Method for improving the quality of metrological characteristics of linear acceleration converters with a spiral tip and bevel on the pole The paper presents the original design of PLDS with improved metrological characteristics. Analytical relations for the analysis and design source Converter with and without considering edge effects in the presence of longitudinal slots with the bevel in the sensitive element according to the CDM. METHODS OF CONTROL AND DIAGNOSTICS Tarnovsky A. I., Geller A. B. — Numerical assessment of structural steels fracture toughness Are the test results on the slow trjohtochechnyj bending the metal tube of austenitic steels, during which defined the criterion of numerical evaluation of viscosity of destruction. Developed compact device and method of testing of samples in the form of plates with a deep notch, which enable you to define the criterion of numerical evaluation of viscosity of destruction at the stage of assessing the properties of structural steels, including tensile test at room temperature samples from base metal and weld metal electrodes of two brands: with rutilovym and fluorine-calcium coating. The results of the test confirm the effectiveness of the proposed criterion. Method and device for efficient and allow you to perform tests on a small volume of material. AUTOMATION OF THE TECHNOLOGY PROCESS TECHNOLOGY AND PRODUCTION, САПР Bratukhin A. G., Strelets D. Yu. — Automated system for production technological preparation of competitive aircraft (as an example of the airplane SUKHOI SUPERJET 100) The problems of effective application of modern integrated information technologies (CALS-technologies) for the production of competitive aviation technics are considered as an example of the regional airplane Sukhoi SuperJet 100 production. The theoretical and practical aspects of the production technical preparation including the design and technological preparation of production in the context of the creation and application of automated design systems (CAD) and the automated process control system of technological production preparation (APCS) of a modern high-tech enterprise, are analyzed. Construction features of APCS and problems of CALS economical efficiency are considered in detail. MATHEMATICAL MODELING, NUMERICAL METHODS, PROGRAM COMPLEXES Gadalov V. N., Vornacheva I. V., Makarova I. A., Bekrenev N. V., Lyasnikova A. V. — Physical modeling of the gas-thermal coatings deposition process for the purpose of study the particle flow homogeneity The process of gas-thermal coatings deposition by using a physical model in which a molten part of a metal rod was replaced by a drop of an aqueous solution and a plasma stream — by a jet of air was investigated. It is established that when the flow is formed by ultrasonic dispersion, the homogeneity of the particle flux increases by more than 9 times compared to spraying with a high-speed gas flow, which has a positive effect on the characteristics of the coatings. STANDARDIZATION, QUALITY PRODUCTION MANAGEMENT Zharkevich О. М., Nurzhanova О. А. — Improving the quality of roller bearings on the ground of statistical methods application One of the main principles of quality control is the desire to improve the quality of products through statistical methods. Pareto chart is constructed for the defects of roller bearings produced at JSC "Stepnogorsk Bearing Plant" in the article. A checklist and a pie chart for defects in roller bearings are constructed. Measures have been developed to improve the quality of roller bearings. ECONOMY AND ORGANIZATION OF PRODUCTION Kopylov L. V., Petukhov S. L., Klauch D. N., Feofanov A. N. — Formation of a technological process that provides a given level of product quality This article presents informational methods of modeling costs for ensuring the product quality in the production process. It formulates conditions for achieving a rational level of quality and key impacts on the quality management system at stages of the product life cycle. It considers the problem of ensuring the product quality control in more details and includes the graphical interpretation of the changes in demand varying parameters of products. This article presents the complex method of forming a given level of product quality in the conditions of contemporary high-tech production. FOREIGN EXPERIENCE Potapova G. S. — Content of foreign journals INFORMATION Suslov An. А. — 18th International Specialized Exhibition "Metalworking-2017"
|
|
Адрес: 127015, Москва, а/я 65.
© 2008-2025, ООО “Издательский центр ”Технология машиностроения” |