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BLANK PRODUCTION

Kukartsev V. A. — Resource increase of the induction crucible furnace of power-line frequency at the temperature above 1550 °С

Combination of substantial and grain composition of a material used in the suggested refractory body allows to obtain rammed lining with high-level physical and ceramic properties after sintering the material according to specified conditions. The lining shows steadiness at 1550—1600 °C. In the presence of fused white alumina in the composition of different fractions provides obtainment of a durable recast course which enhances its wear resistance and refractory property.
Key words: quartzitic lining, induction crucible furnace, lining life, fused alumina

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

Timiryazev V. A., Khostikoyev M. Z., Skhirtladze A. G., Agueyeva V. N., Vay Pyu Maung — Quality assurance of the material surface layer of machine components

Quality research results of the material surface layer of machine components are described. This layer is obtainable after machining by plastic forming. The character, distribution and depth the distorted ply established which were obtained on the surface at thread rolling. Microhardness and microstructure of the surface layer of the thread materials rolled on various structural materials were investigated.
Key words: quality, material surface layer, microhardness, microstructure, thread rolling

Bekrenev N. V., Brzhozovsky B. M., Nasad V. V., Petrovsky A. P., Sarsengaliyev A. M. — Research of ultrasonic reaming of deep pinholes in the components made from heavy-duty materials

Researches of expansion of openings with a diameter of 3—5 mm in titanic alloys, corrosion-proof and heat resisting steel in comparison with steel 45 with the message to the instrument of ultrasonic fluctuations through an intermediate free body and direct contact are executed. Considerable reduction of the moment of cutting and decrease in a roughness of a surface and opening deviation from roundness that allows to increase efficiency of processing of exact openings in details from the studied materials is established.
Key words: titanic alloys, corrosion-resistant steel, ultrasonic vibrations, surface roughness, efficiency of the process

TOOLING PRODUCTION

Tabakov V. P., Saguitov D. I. — Wear-resistance increase of thread turning tool

Thread cutting process contact quality, heat and strained states of the wedge of lathe threading tool were analysed, new multilayer wear-resistant coatings were offered. Calculation procedure is developed in which regularity of power load distribution on the contact areas is taken into consideration, the loading caused by constraint of the thread cutting process. Efficiency of the developed sandwich coating is assessed.
Key words: wear-resistant coating, thread turning tool, contact pad, working capacity

Truskovsky V. I. — Efficiency of packet blanks open yield when manufacturing abrasive rubber bond tool

The new ways allowing essentially to reduce unevenness of deformation on volume of pressed preparations are offered, to eliminate formation of barrel at opened a deposit, to exclude emergence having stratified and cracks on a lateral surface of preparations, dependences for determination of the amount of initial ring preparations received by cutting down from flat hire on the knife stamps, providing effective two-phasic pressing of multilayered preparations in one compression mold are offered.
Key words: preparation, abrasive circle, pressing, deformation, processing modes, way, compression mold, executive sizes, contact friction

Dudarev A. S., Safonov I. I., Steshin A. A. — Polymer composite machining features

Estimation results of the diamond tooling granularity influence on roughness parameters at polymer composites machining were investigated. Granularity index of the diamond tool is to be assigned with account taken of the given diagrammes to achieve the best processing of polymer composites.
Key words: polymer composite, diamond tool, gritness, roughness

MACHINING-AND-ASSEMBLY PRODUCTION

Bulavin I. A., Gruzdev A. Yu., Budykin A. V. — Optimized assembly process of reducers

The article deals with some of the most important parameters of the optimized technological process of assembly of reducers are considered. The new industrial equipment is developed for performance of these operations, allowing is guaranteed to provide the accuracy of output parameters of a reducer in the course of assembly.
Key words: reducer, bearing, assembly, press fitting force, preliminary tightness, gearing parameters

WELDING, RELATED PROCESSES AND TECHNOLOGY

Budkin Yu. V., Sivov Ye. N., Kalyuzhnyi A. A., Yerofeyev V. A. — Thermal physic processes in the machining volume of the refractory metals and steels by concentrated energy fluxes

The impact of power density and concentration ratio of the electron beam in the heating spot for a high-quality welded-brazed joints is described.
Key words: dissimilar metals, the thermal processes

SPECIAL TECHNOLOGIES

Tokareva I. A., Shalimov Yu. N. — Process features of chromium plating from the electrolytes on the basis of low-valent chromium compounds

The paper discusses aspects of chromium electrolytes based on its lower grade compounds. The need for the use of these electrolytes is dictated by the problems of environmental improvements in electroplating. Discusses the causes of difficulties of practical use of these electrolytes to replace the existing technologies based on chromate compounds.
Key words: state of the modification, the effects of beat, current efficiency of chromium

TESTING AND DIAGNOSTICS METHODS IN ENGINEERING INDUSTRY

Barat V. A., Yelizarov S. V., Schelakov D. A. — A hermeticity test of lock valves by the use of portable multifunctional instrument UNISCOPE

An automated procedure of controlling lock valves hermeticity is described. It is implemented on the base of a portable multifunctional instrument UNISCOPE. The device defects lock valves leakage by 1 litre per minute and above. Any lock valve, i.e. cock, latch, valve, disc gate, etc., may be taken under control in case its face-to-face diameter is 50—1000 mm.
Key words: lock valves, hermeticity, leak, acoustic emission

INSTRUMENT-MAKING TECHNOLOGIES

Denisov Yu. V., Nefedov A. Yu., Pakhomov I. I. — Development of machining processes at an instrument making enterprise

Options of manufacturing activity development based on the general production control system taking into consideration specific conditions of the instrument making shop are covered.
Key words: machining processes, preproduction engineering, efficiency

MATHEMATICAL MODELLING, CALCULUS OF APPROXIMATIONS AND SOFTWARE SYSTEMS

Ragrin N. A. — Mathematical model of wear resistant drilling dependencies

Mathematical model of wear resistant dependencies were analysed. A selection of a mathematical model for estimating drill operation time is substantiated; the survival probability is 95 per cent under conditions of variation of cutting speed and diameter.
Key words: drill, cutting speed, diameter, resistance, operating time

ECONOMICS OF THE ENGINEERING INDUSTRY AND PRODUCTION ORGANIZATION

Mamykina A. Yu., Ferapontov A. N. — Energy intensity of the wear-resistant coating deposition on automatic coupler

Power inputs at wear-resistant surfacing on functional surfaces of automatic coupler using different reinforcement techniques are considered. Comparison of energy intensity is drawn by measurement of temperature fields’ kinetics using infrared imager. Temperature distribution along coupler shank is shown.
Key words: automatic coupler, gas powder surfacing, component, induction-metallurgical surfacing technique, coating, layer, temperature, infrared imager, power inputs

Rakhmilevich Ye.G. — Multicriterion optimization of the structural and manufacturing part variants on the basis of quantitative processability indexes

In article questions assess the level of mamifacturability detail design with multi-criteria optimization based on quantitative indicators manufacturability.
Key words: manufacturability, multi-criteria optimization, technological cost, technological preparation of manufacture

EDUCATION AND PERSONNEL TRAINING

Frolov V. A., Fedorov S. A. — Pressing problems and key aspects of engineering institutes of higher education and employers cooperation in vocational training

The article analiyses current problems and key aspects of interaction between technical universities and employears in preparation of professional staff.
Key words: high school, employer, educational process, interachion, employment of students, internship, instructor, professional career

FOREIGN EXPERIENCE

Potapova G. S. — Review of the foreign journals

INFORMATION

Ivanov A. N. — The 14th International specialized exhibition for Metalworking and Engineering "MashEx’2013"

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