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STRUCTURAL MATERIALS, METAL SCIENCE

Mukhametshin A. Z., Shakirova O. V., Polyakova Ye. N. — Fatigue characteristic analysis of samples from the corrosion-resistant steel 12Х15Г9НД

On the basis of fatigue testing of samples fatigue point is determined, i.e. stress limit using 107 cycles of the matrix metal (295 MPa) and welded joints (280 MPa) for new prospective steel 12Х15Г9НД. The principal crack propagation mechanism, which is fatigue mechanism, at testing is shown. It is established that steel 12Х15Г9НД is fit for manufacturing components, running under conditions of cyclic load.
Key words: corrosion-resistant steel, endurance limit, ultimate strength, yield strength, crack

BLANK PRODUCTION

Martynov V. N., Khokhlovsky A. S., Gribkov M. S., Sysoyev A. G. — Processing features of thick-walled workpiece electron-beam welding

It is determined that getting quality formation of a welded joint at electron-beam welding is implemented only for certain modes of welding which depend on the characteristics and parameters of welded metals and welding gun. Also defined the critical value of thickness products and proposed processing methods for thicknesses greater than critical.
Key words: electron-beam welding, welded metal, welded joint, thickness product

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

Sazanov I. I., Lyadnik A. M., Lyadnik S. V. — State-of-the-art and development prospect of the hydrodynamic and hydroabrasive saw technologies

This article describes the prospects for water-jet technology, as well as problems related to the search for new technologies and solutions in the field of materials.
Key words: water-jet cutting, pumping station, ultra high pressure

Gafarov A. M., Suleymanov P. G., Kalbiyev F. M., Gafarov V. A. — Assurance of surface accuracy at flattening-out non-rigid thin-walled machine components, run in emergency situations

Usage task probability of leveling proсess in the work of high accurate nonrigid thin-walled parts of machine and equipments exploited in emergency situations and extreme conditions is looked through. Mathematical models permitting to optimise technological leveling processes with the purpose of minimal work force provision is developed, formation mechanism of fault forms in leveling process is analysed as well.
Key words: leveling, technological parameters, work force, fault forms, deformation, work accuracy

TOOLING PRODUCTION

Polyakov A. N., Marusich K. V. — Thermal error forecasting method for machine tools operating in varying thermal conditions

A thermal error forecasting method for machine tools operating in varying thermal conditions is considered. It is classified as grapho-analytical method and is based on using a small set of experimental data on specified machine tool for which it is necessary to thermal characteristic. Results of full-scale experiment are given.
Key words: metal-cutting equipment, sequence diagram, thermal characteristic, forecasting method, varying thermal conditions

Ilinykh A. S. — Abrasive tool designing for high-speed grinding of metals

Research results of developing heavy-duty grinding discs to implement production processes of high-speed grinding of metals are covered. The method is based on discs optimum formulation selection and on production technique. A preproduction batch of abrasive discs is manufactured, and they received an industrial approval.
Key words: abrasive tool, grinding disc, grinding of metals, high-speed grinding

MACHINING-AND-ASSEMBLY PRODUCTION

Bulavin I. A., Gruzdev A. Yu., Budykin A. V. — Preload of bearings in aggregates of machinery

Purpose of a preliminary tightness of bearings in units of cars is considered. The analysis of constructive options of bearing knots with a preliminary tightness and technological ways of its creation and adjustment is provided.
Key words: preliminary tightness, bearings, assembly, adjustment, friction moment, power factors, durability

SPECIAL TECHNOLOGIES

Rybin A. A., Chervyakov A. A. — Research of polymer fibre properties at wave load induced by transverse impulse action

The behavior and properties of various microfiber polymeric typical production and experienced threads is investigated at the wave influences raised by cross pulse loading, with the frontal speed of deformation, the technique is created and the specialized device is developed for tests of filar exemplars. The analysis is carried out from positions of nonconventional parameters of an assessment of mechanical characteristics at specific inertial reaction.
Key words: polymeric threads, cross gap, dynamics, wave loading, dynamic effort, impulse of dynamic effort, line density, aromatic polyamides, aliphatic polyamides, polyesters, polyethylene

METROLOGY AND MEASUREMENT ASSURANCE

Chelpanov I. B., Kochetkov A. V. — Error analysis of manipulator standard kinematic diagrams

The offered approach to accuracy rationing consists that requirements to accuracy are formulated for industrial robots as a whole, on accuracy of the task of positions of transferable object.
Key words: metrology, tests, robots, measurement schemes, accuracy, quality, certification

TESTING AND DIAGNOSTICS METHODS IN ENGINEERING INDUSTRY

Suminov V. M., Akilin V. I., Galkin V. I., Gorozheyev M. Yu. — A self-contained instrument for control and diagnostics of handling machinery

The article describes the work of the created independent device for express quality assurance of passenger and goods lifts. There are typical instrument readings for certain types of defects in components of the lifts.
Key words: independent device, quality assurance, passenger lift, diagnostic features, typical defect

PROCESSES AND PRODUCTION AUTOMATION AND CONTROL, CAD SYSTEMS

Kouzmin V. V., Maximovsky D. Ye. — Automated selection of basic parts processing bases at machining on multicenters on basis of geometrical models of graphics systems

The general algorithm of a choice of technological bases for case details are considered by various criteria of an optimality. Mathematical statement of a direct problem of the dimensional assaying is developed, allowing to select technological bases at handling of case-shaped parts taking into account various factors.
Key words: technological bases, direct problem, dimensional analysis, count of technological process, basic part

MATHEMATICAL MODELLING, CALCULUS OF APPROXIMATIONS AND SOFTWARE SYSTEMS

Sheryshev A. Ye., Kulikov S. N., Krit B. L., Strelchenko A. A. — Construction algorithm of netted vector model by raster image

Article is devoted to research by the grids methods of the deformed state of the polymeric materials arising at pneumovacuum formation of machinery’s products. One of possible algorithms of the translation of grid raster image into vector model that will allow to automate computer processing of raster images is considered.
Key words: pneumovacuum formation, polymeric materials, raster information, surface grid, vectoring

STANDARDIZATION AND PRODUCT QUALITY CONTROL

Zmiyevsky V. I., Manoylo V. I. — How to improve skills of authority and personnel on conformance evaluation

ssues of improving personnel skills that carries out conformance evaluation are considered.
Key words: skills, conformance, experts, quality management system

PRODUCTION ORGANIZATION

Artemyev Ye. V., Lukyanchik V. V. — Development and improvement ways of product life principal phases of the rocket-and-space hardware and fabrication techniques

On the basis of analysis of state-of-the-art of the world space industry ways and approaches to further development of product life principal phases of the rocket-and-space hardware and fabrication techniques are synthesized. Importance of technology in different product life phases of the rocket-and-space hardware is shown; it causes high significance and necessity for research and development stimulation aimed at birth of breaking technologies. The importance of the techniques in operation for competitive activity according to the place in the life cycle and to efficiency is indicated. Significance of technological forecast when creating competitive product is shown. It is established that problem solving on product perfection of the rocket-and-space hardware and its competitive recovery in multi-aspect activity of an enterprise are to have not a present-day, i.e. tactical, but long-term, i.e. strategical, character, basing on up-to-date concepts of general quality management and production competitiveness.
Key words: rocket-and space hardware, product life, technology, quality, competitive ability

FOREIGN EXPERIENCE

Potapova G. S. — Review of the foreign journals

INFORMATION

Ivanov A. N. — The 6th International specialized exhibition Termoobrabotka’2012

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