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STRUCTURAL MATERIALS, METAL SCIENCE

Kablov Ye. N., Schetanov B. V., Shavnev A. A., Nyafkin A. N., Chibirkin V. V., Yeliseyev V. V., Martynenko V. A., Muskatinyev V. G., Emikh L. A., Vdovin S. M., Nischev K. N. — Properties and application of highly filled metal-matrix composites Al—SiC

Selection of a metal-matrix composite material Al—SiC to be applied in the heat-removing products of the power electronics and transforming equipment is substantiated. Research results of the basic thermophysical and mechanical properties of these composites and full-scale test of the material as part of power transistor packs are given.
Key words: composite material, products of the power electronics, power transistor packs

Kouznetsov S. N., Bykharov S. V. — Optimal composition search model of the X-ray protective three-layer honeycomb composite panels

A search model of the X-ray protective three-layer honeycomb composite panels’ optimal composition is developed.
Key words: aircraft construction, polymeric composite materials, three-layer honeycomb panels, tree graph

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

Vinogradova T. G., Salova D. P., Salov P. M. — Pulse temperature at aero-boric grinding

Calculation of pulse temperature on the work surface under the action of several heat sources is covered.
Key words: heat, grinding, pulse temperature, contact temperature, heat source, thermal balance

Prilutsky V. A., Dmitriyev V. A., Chernyakhovskaya L. B. — Waves-cutting processing cyclic error reduction technique

The essence of the phenomenon of the cutting waves is observed. Three alternate paths of the abrasive wheel on workpiece by the model, takes into account the oscillations of the tool, are shown. The mathematical dependences of the treatment conditions, parameters of the oscillations, allowing waves to provide the cutting conditions are brought.
Key words: tool, workpiece, oscillations, ripple height, cutting waves

TOOLING PRODUCTION

Kozochkin M. P. — Modern NC-controlled machines equipping by diagnostic and adaptive control systems

Issues of on-line diagnosis of the NC machine manufacturing equipment state value and of working procedure are considered, as well as location and causes of operation failure, decision-making functions to eliminate failure effects.
Key words: operating capacity, machining facility, diagnostics, NC-machine control

MACHINING-AND-ASSEMBLY PRODUCTION

Petrukhin A. V., Saninsky V. A., Moskvicheva N. P., Kochkin M. V. — Accessory computer-aided selection at assembling multispan bearing unit for internal combustion engine

The architecture and the scheme of functioning of system of the automated selection of accessories multibasic multiple-bearing the knot, applied are presented at assemblage of radical bearings of a cranked shaft of the heavy diesel engine, intended for achievement of optimum backlashes in oaxial steams of a friction of radical bearings of sliding by computer support of process of acquisition of knot.
Key words: system, accessories details, multibasic multiple-bearing knot, mechanical processing, automated management

WELDING, RELATED PROCESSES AND TECHNOLOGY

Isakayev E. Kh., Mordynsky V. B., Sidorova Ye. V., Tereshkin S. A., Scherbakov V. V., Podymova N. B. — Comparative analysis of the gas-thermal coatings’ porosity measurement techniques 

Measurement data obtained by the hydrostatic weighing method by means of sample impregnation in kerosene and weighing is given. Coating porosity estimation method by a new laser optical-acoustic method is developed.
Key words: gas-thermal coating, advanced methods, laser optical-acoustic method, porosity estimation

Kondratyev S. Yu., Popov V. O. — Obtaining quasi-nano-crystal structure of a surface layer at laser treatment for the purpose of steel and alloys wear resistance increase

A possibility of obtaining ultra fine-grained quasi-nanocrystalline structure in the surface layer of steels and nonferrous metal alloys is calculated and experimentally confirmed. The grain diameter is less than 1 micrometer due to laser hardening with surface fusion and to surface engineering with a laser. Effect of the metal materials laser treatment process-dependent parameters on the structure and depth of the formable surface layer with ultrafine grain is studied.
Key words: laser treatment, steel and nonferrous metal alloy, microstructure, surface hardening, friction wear resistance

SPECIAL TECHNOLOGIES

Kopylov Yu. R. — Galvanomechanical thick rehabilitation of large-dimension components

Results experimental examine galvano-mechanical restoration of cylindrical samples in diameter of 220 and 60 mm from medium carbon steel are presented to steel floating with cement.
Key words: restoration of details, floating with cement, galvanizing, mechanical pressure

Stenin V. A., Lebedeva Ye. G. – Mechanism of process pollution particles transport by washing fluid flow

Pollution particles transport mechanism by circulating medium flow is considered. Conditions for pollution particles "dancing" in the hydrodynamic boundary layer are determined.
Key words: pollution particles, particle transport mechanism, heat transfer

METROLOGY AND MEASUREMENT ASSURANCE

Zubarev Yu. M., Kosarevsky S. V., Tyrs V. R. — Practical approach to thread detection at coordinate measuring machines

An approach to determination parameters of internal and external threads on the coordinate measuring machines is suggested. The approach ensures repeatability of measurement data and does not depend on the operator.
Key words: coordinate measuring machines, measurement, thread, operator

TESTING AND DIAGNOSTICS METHODS IN ENGINEERING INDUSTRY

Medar A. V., Kotov A. N., Kochkin Ye. V. — Determination of space craft mass-inertial behaviour

In the present study the reasons led existence of two approaches to the control of mass-inertial characteristics of spacecrafts in the USSR and the USA are considered and is drawn a conclusion on primary influence on the distinction of requirements of customers and operating conditions of contractors, instead of technical problems.
Key words: center of gravity, mass, moment of inertia, product of inertia, spacecraft

INSTRUMENT-MAKING TECHNOLOGIES

Fedorov V. K., Lytsenko A. V., Guchanov I. N. — Application of radio-electronic equipment prototyping and pilot production organization methods

Maxims of method application and prototyping technologies are considered, as well as description of a number of basic prototyping technologies. A prototyping technology arrangement and flow chart for single-part and pilot production of radio-electronic systems are suggested.
Key words: prototype, prototyping, pilot production, geometrically-complex tool, stereolithography, industrial engineering

PROCESSES AND PRODUCTION AUTOMATION AND CONTROL, CAD SYSTEMS

Yanguirov I. F. — Spiral vibratory converter CAD system

We derive relations for determining the geometric dimensions of the inductor and a flat spiral of conductive spring for a CAD of a new class of vibration transducers after of experimental verification work.
Key words: spring, vibrator, optimization, shape fluctuations, reduced system, energy of the kinetic, indicator

MATHEMATICAL MODELLING, CALCULUS OF APPROXIMATIONS AND SOFTWARE SYSTEMS

Shulyakovsky A. V. — Automated stand heating block design procedure development to test shell structures from nonmetallic materials

A heating unit designing method based on mathematical model of multidimensional radiation and conductive heat exchange in the system heating unit — cone is considered. It is used to substantiate heating unit construction and working conditions, agreeable to the specified test programme.
Key words: rockets, nose cone, heat exchange, heating unit, designing, automated test bench

ORGANIZATION OF PRODUCTION

Bukhalkov M. I. — Innovation activity arrangement at enterprises of the engineering industry

The basic forms and models of the organization of innovative activity at the mechanical engineering enterprises are considered, the major direction of development of innovative processes are opened.
Key words: innovation activity, machine-building complex, organization processes

FOREIGN EXPERIENCE

Potapova G. S. — Review of the foreign journals

INFORMATION

Suslov An. A. — The 3rd Nanotechnology International Forum Rusnanotech 2010

M. V. Lomonosov Moscow State University is 256 years old

Exhibitions in April—June, 2011

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