---

STRUCTURAL MATERIALS, METAL SCIENCE

Gnyusov S. F., Makov D. A. — Structure-phase composition and abrasive wear resistance of austenitic composition coatings. Part 4

The research demonstrated the effect of heat treatment on the abrasive wear resistance of composition coatings (Fe—20 % Mn—4 % V—4 % Mo) + 15 % WC and (Fe—20 % Ni—4 % V— 4 % Mo) + 15 % WC ADN-deposited. Industrial tests of the developed composition coating showed that coal crusher operating elements with composition coating based on the high-manganese steel have more than 4 times higher wear resistance as compared to the elements coated by T-590 electrodes.
Key words: argon-arc welding, composition coatings, carbide addition, austenite, tungsten carbide, wear resistance

TECHNOLOGIES AND EQUIPMENT FOR MACHINING, PHYSICOTECHNICAL PROCESSING, NON-CUTTING SHAPING

Ryabtsev S. A., Tsvetkov E. V. — Deep grinding of hardware curve-based surfaces by high-porous borazon disks

The article covers the application results high-porous borazon disks for processing convoluted profiled surfaces of parts by multi-axis deep grinding. By an example of groove grinding in the sector of the gas turbine engine nozzle block from high-temperature nickel alloy by a high-porous borazon disk it was shown that machine time to carry out the operation was reduced to 7,2 times as compared to traditional technologies, the number of worked pieces by one disks increased 110 times against processing by an electrocorundum disk, tooling investment was on the average 4 times down.
Key words: deep grinding, high-porous grinding disks, borazon, borazon grinding disk

Tarasov S. V., Svischev V. I. — Effect of the processing conditions on the temperature when turning Ni-resist cast iron

Performed analytical calculations and modeling in the Deform 2D and Deform 3D for the study of temperature change on the front face of the blade occurs when turning cast iron "Ni-Resist". Were obtained depending on describing the change of cutting temperature on the front surface of the insert on the process conditions. A comparison of the values obtained analytically and in simulation.
Key words: temperature, the process of turning, "Ni-Resist"

TOOLING PRODUCTION

Ardashev D. V. — Contact phenomena of wear in the abrasive — steel pair

The described processes take place in the contact area of the abrasive grain and worked material at grinding.
Key words: wear, abrasive grain, oxide film, temperature

Alekseyev V. A. — Asynchronous thyristor electrical drives of ETA1 series

The article presents the power and control parts of a thyristor asynchronous electrical drive of the ETA1 series, which has a number of positive characteristic in manufacturing and operation, as well as the simplest control mode in case of process automation need.
Key words: variable-frequency electric drive, three-phase-two-phase frequency converter, two-phase asynchronous motor

MACHINING-AND-ASSEMBLY PRODUCTION

Bubnov A. S. — Shaping by straitened deformation in assembly-welding processes 

The results of studies of technological possibilities, patterns and characteristics of the method changes low rigid constrained deformation of cylindrical parts. The results show the nature of the influence of the loading history on the stress condition of the parts, including the accumulated strain and reserve plasticity.
Key words: straightening, constrained deformation, stress-strain state

SPECIAL TECHNOLOGIES

Savelyev A. A., Zelenov M. S. — Integrated study of radio-reflective conductive coatings for scanner assemblies from composite non-metal materials

Grounded selections of protective coating from composite non-metal materials for scanner assembly, as well as its thickness allow to increase life time of the material under space conditions.
Key words: protective coating, composite non-metal materials, spacecraft

Kolomeichenko A. V., Logachev V. N., Titov N. V. — Machinery service life increase by micro-arc oxidation

The article describes combined methods of refacing and strengthening work areas of machine components, particularly that of micro-arc oxidation. In order to reduce wear process of the counterpart of a movable joint we retrofitted the strengthening coating by different materials. We present a construction of the device which may be used micro-arc oxidation in running electrolyte. Use of a running circuit for oxidation allows to improve physical-mechanical properties of the strengthening coatings.
Key words: repair, strengthening, housing, bushing, frame, cover, bearing, brazing, sputtering, plastic deformation, ancillary repair part, welding, micro-arc oxidation

Nevrovskiy V. A., Vinogradov A. V., Lyudin V. B. — Micro-arc oxidizer cooling model

The paper suggests the model for simulating equipment cooling used for micro-arc oxidation of metals. The model validity is proved at an experimental unit for heating and cooling of water and at a real pool of electrolyte of a micro-arc oxidation equipment. The model allows choosing project parameters of the cooling system providing some optimum conditions.
Key words: heating, thermal conduction, heat exchange, electrolyte, thermal resistance, micro-arc oxidation

TESTING AND DIAGNOSTICS METHODS IN ENGINEERING INDUSTRY

Konovalov N. N., Scherbakova E. S. — Upgrade of the non-destructive testing tools’ electronic base and its methodological support

The article covers development problems of methodological data for non-destructive testing.
Key words: non-destructive testing, methodological documents, standard

INSTRUMENT-MAKING TECHNOLOGIES

Ivanov N. I., Borisov P. Yu. — Process features of automatic heating control in the weld zone of T-joints of small components

The described device for automatic control of the butt-seam T-joint welding processes of wire and case parts uses as a back-coupling parameter an average speed of force reduction in the joint in the time lag between the welding current initiation and metal heating up to the welding temperature. As a control response we consider welding current impulse time. Results of experimental investigation of the process features for welding with automatic heating control are given.
Key words: butt-seam welding, T-joints, automatic control, speed of force reduction, current impulse

PROCESSES AND PRODUCTION AUTOMATION AND CONTROL, CAD SYSTEMS

Feofanov A. N. — Complex assembly-welding automated process equipment for automotive industry

Considered typical examples of complex automated assembly and welding and automated mass production lines.
Key words: assembly-welding process equipment, robotic technological complex, layout lines

MATHEMATICAL MODELLING, CALCULUS OF APPROXIMATIONS AND SOFTWARE SYSTEMS

Nikolayenko A. A. — Thermodynamic model of deep grinding

The process of full-depth grinding periphery of the circle. First developed analytical simulation models of mutual influence of the cutting forces and the temperature of the workpiece. The model used in a computer program for the selection of cutting parameters and characteristics of the grinding wheel, providing set quality of details.
Key words: cutting force, the temperature of the workpiece, the mutual influence of forces and temperature

ECONOMICS OF THE ENGINEERING INDUSTRY AND PRODUCTION ORGANIZATION

Taratynov O. V., Klepikov V. V., Cherepakhin A. A. — Ways to technological systems upgrade

Technological system is considered at the micro and macro levels which incorporate the principle of quantization, which allowed to provide new momentum to the formation of technological systems, ensuring the formation of a specified quality of the surface layer of the products at the impact on the mA shall taking into account the changing conditions of treatment, occurring at the time.
Key words: technological system, the structure of the system, micro-level and macrolevel quantization

FOREIGN EXPERIENCE

Potapova G. S. — Review of the foreign journals

INFORMATION

Suslov An. A. — The 9th International specialized exhibition "VacuumTechExpo—2014"

---

Адрес: 127015, Москва, а/я 65.
Тел.: +7 (495) 640-7903
e-mail: ic@ic-tm.ru

© 2008-2024, ООО “Издательский центр ”Технология машиностроения”
Создание и реклама сайтов - www.itsite.ru