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STRUCTURAL MATERIALS, METAL SCIENCE

Luzhansky I. B. — High-speed steel 110X5M8Ф2B2C2Ю for multiedge metal-cutter surfacing

Science-technical problem of increase of wear-resistance of fast cutting molybdenum-vanadium steel to the level of the steel P18 is solved.
Key words: fast cutting steel, surfacing, metal cutting tool, increase of resource

BLANK PRODUCTION

Lyashkov I. I., Mirzoyan G. S., Lyakh A. P. — Production process development for centrifugal-cast thin-walled tube stock

Low-waste centrifugal casting practice for thin-walled blank parts production is covered. It allows for immediate obtaining a seamless tube stock with high metal recovery (0,8–0,9) and guaranteed properties meeting the performance requirements.
Key words: technology, centrifugal cast, metal recovery, quality

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

Kondratenko L. A. — Special features of heat exchanging pipes re-rolling

Research results of “flaking” along circumferential direction under the influence of tangential stress in the thin layer are described. The allowance for the product to be manufactured depends on the positive effect of the layer abrasive elimination and further surface inspection by dye penetrant flaw detection.
Key words: rolling, "flaking" defect, torque moment, strength, density

Bityutskaya L. A., Sokolov Yu. V., Spiridonov B. A. — Chromium electrocrystallization characteristics

Using electron microscopic method a morphology of electrolytic chromium plating obtained on a steel substrate from standard electrolyte (250 g/l CrO3 and 2,5 g/l H2SO4) at current density as of 30—60 A/dm2 is studied. It is established that complex-structured spheroids are formed on the areal surface patches with heightened current density. The spheroids’ formation is dependent on the conditions under which crystalline grains’ nucleation is considerably higher than their growth velocity. The largest number of spheroids is formed on the edges of the flat cathode where local current density is essentially higher.
Key words: chromium coating, electrocrystallization, structure, spheroid, morphology, microhardness

TOOLING PRODUCTION

Kosareva S. A. — Air-operated rubbing machine vibration cause analysis

The reasons of pneumatic polishing machine are considered. The results of the tests of maximum permissible vibration levels in workplaces are given. The real methods of vibration decrease of the instrument are examined. In this article there are some recommendations for work with pneumatic polishing machine.
Key words: maximum permissible levels, vibration decrease, pneumatic polishing machine, effective ways of protection, vibration isolation

MACHINING-AND-ASSEMBLY PRODUCTION

Iznairov B. M., Iznairov O. B., Vasin A. N. — Ballscrew-nut transmission simulator-based assembly

A mathematical model of ballscrew-nut transmission error formation as a result of carrying out operations of transmission assembly is covered. The model allows for computation clearance between separate working members of the ballscrew-nut transmission and operating contact stress in any link for further technique analysis of its hoisting capacity improvement.
Key words: ballscrew-nut, assembly, mathematical modelling

WELDING, RELATED PROCESSES AND TECHNOLOGY

Vasin V. A., Ivashov Ye. N., Stepanchikov S. V. — Improving vacuum thin film deposition evenness

An actuating device complex motion mathematical model of automated vacuum processing equipment is developed. The model allows for controlling evenness of the thin filming aimed at improving its evenness. Manufacturing advantages of the coordinate actuating devices compared to planetary design are given, as well as main ways of controlling and improving vacuum thin film deposition evenness.
Key words: electronic engineering, devices, thin film deposition, vacuum equipment

SPECIAL TECHNOLOGIES

Selivanov S. G., Poezzhalova S. N. — High and critical technologies development management at aircraft propulsion engineering

The functional model of ASSR-technologies is offered and application of the neural-fuzzy management method of development of high and critical technologies in engine-building manufacture is shown in the form of information technology of work integrated-regression networks and use of fuzzy logic for formation of united technologies of aviation engines of new generation. The rational functions describing development of fighters and innovative-investment projects for creation of competitive production are revealed with use of artificial intelligence techniques.
Key words: innovative project, neural network, fuzzy logic, functional model, sigmoid, logistical function, united technologies, node technologies

Cherlenyak N. N., Shevchenko I. V. — Module quality, reliability and safety assessment of the international space station Russian segment at the initial stage of their creation

Module quality, reliability and safety estimation procedure of the international space station Russian segment at the initial stage of its creation is suggested.
Key words: quality assessment, reliability, safety, international space station

Kladnitsky I. G. — Analytical kinematics of particle motion along a trajectory of a smooth curved line, i. e. arched uniform-measure

State-of-the-art mechanisms, converting uniform rotary motion into reciprocating one have essential shortcoming, i.e. translatory motion both direct and reverse is non-uniform. This is prohibitive in the operation of many mechanisms. Kinematic and force calculation of a four-tier crank mechanism is given, in which uniform translational motion of the link in stroke is specified by the line of arched uniform-measure, eliminating the above stated shortcoming.
Key words: kinematics of motion, uniform rotatory motion, mechanism, kinematic calculation and calculation of force, electrode

Yanguirov I. F. — Long-slot helical transducer

The paper shows the original design — vibrator with high technological capabilities. The analytical relations for the analysis and design source converter with and without consideration of boundary effects in the presence of longitudinal grooves in the flat, broad spiral spring.
Key words: plate, slit, eddy currents, magnetic Reynolds number, spiral spring, secondary field, vibrator

TESTING AND DIAGNOSTICS METHODS IN ENGINEERING INDUSTRY

Mezintsev Ye. D., Tsvetkova N. K., Shitikov V. S., Smirnov V. G. — System-structured modelling of the on-line nondestructive testing on the base of X-ray tomography intelligence systems and X-ray diffraction method application

Results of the system-structured analysis of the components and assembly units non-destructive testing by X-ray tomography and X-ray diffraction methods are covered. Functional decomposition of the computer-based intelligence system is carried out, which allows to structure engineering process of the similar systems. Position and function of the X-ray tomography and X-ray diffraction methods in the structure of the automated intelligence system are determined.
Key words: system-structured modelling, analysis, X-ray tomography

PROCESSES AND PRODUCTION AUTOMATION AND CONTROL, CAD SYSTEMS

Litvinchook A. Yu., Zaporozhsky A. S., Korotynskaya T. Yu., Filippov Yu. A. — Integrated information environment for end-to-end structural-and-technological designing and production of pipes of complex spatial forms

One of the possible techniques to manufacture irregular-space-shape pipelines which miss straight-line portions is considered. An innovative in essence pipeline bending process is based on tube stock pushing through a hollow sphere which has a great number of degrees of freedom.
Key words: pipe system, designing, spatial form, bending process

Kuptsov V. R., Feofanov A. N. — CAD/CAM-system selection for product industrial process designing

A description of CAD/CAM-generic systems oriented to technological and design tasks solution is given. Selection principal criteria of application package are discussed.
Key words: CAD/CAM-systems, designing, processing, calculation

MATHEMATICAL MODELLING, CALCULUS OF APPROXIMATIONS AND SOFTWARE SYSTEMS

Kotov A. N., Chuykin S. A. — CNC production process modelling of the aircraft large-size complex geometry slender parts

The article deals with the modelling of multiprofile large-sized small ruggedness aircraft unit details’ technological processing.
Key words: details of small ruggedness, shape errors, mathematical model, numerical programmed control

LABOUR PROTECTION IN ENGINEERING INDUSTRY

Yegorova O. S. — Environmental safety management under conditions of industrial enterprise innovative development in Russia

Issues of managing environmental safety to ensure competitive and efficient activity of an industrial enterprise are considered. It is shown that innovative production needs managerial personnel capable of analysing, forecasting, making decisions, assuming the responsibility and taking into account different ecological aspects of the enterprise activity. Results of the environmental policy from the point of social responsibility of the industrial plant are analysed.
Key words: environmental safety, industrial enterprise, innovative development, social responsibility

PRODUCTION ORGANIZATION

Sergeyev A. A. — Competitiveness of machine-building enterprises during crisis

The author analyzes the principal causes of competitiveness decrease of mechanical engineering products during the crisis and underlines the importance of investments for development of innovations. In the article emphasis is placed on the weakening pace of development of mechanical engineering in comparison with a growth rate of extraction of raw materials. The author draws attention to the structure of the Russian economy and caused distortions in the development of industries, identifies the main ways of improving the competitiveness of the industry based on conversion of mechanical, engineering in a competitive, hi-tech and receptive to innovations complex.
Key words: mechanical engineering, competitiveness, investments, conversion of mechanical engineering, development, extraction of raw materials, decrease in production

FOREIGN EXPERIENCE

Potapova G. S. — Review of the foreign journals

INFORMATION

Dobrinsky Ye. S., Sein V. A. — The bus transport industry of Russia in the post-crisis year

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