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	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�8 2012)
to russian

SCIENTIFIC-TECHNICAL SECTION

Sarayev Yu. N., Bezborodov V. P. � Influence of energy parameters of welding process on structure properties of low-alloyed steel welded joints

The research results of the pulse welding process influence on the structure and mechanical properties of welded joints made of low-alloyed steels are given. It is shown that the pulse welding mode makes it possible to improve the structural homogeneity and reduce the size of metal grain of a weld and heat-affected zone. The structural changes lead to the growth of the plasticity of the weld joint metal.
Key words: welded joint, mechanical properties, structure, pulse mode, strength, plasticity, hardness

Oryschenko A. S., Pimenov A. V., Shekin S. I., Sharapov M. G. � Research of nonmetallic inclusion influence on toughness of weld metal of steel E36 at low temperatures

The interconnection of the form and composition of nonmetallic inclusion arising in the weld metal at the agglomerated submerged arc welding of the system Mg�CaF2�Al2O3�SiO2 by low-alloyed wires of the steels E36 and ��2 with the composition of the flux is examined. It is shown that the growth of the part of rounded nonmetallic inclusions and the reduction of the part of extended inclusions in the weld metal as well as the reduction of the average size of inclusions improves the striking energy of the weld metal as the temperature of tests of �40 �C.
Key words: automatic welding, shipbuilding steels, agglomerated flux, low-alloyed wires, nonmetallic inclusions, cold endurance

Chernyavsky N. I., Kazakov Yu. V., Korotkova G. M., Chibisova N. N. � Research of active value of pulse current at non-consumable electrode argon-arc welding of aluminium

The problem of identification of the active value of the welding current at the feeding of the arc with current pulses with fast transition of the current through zero are considered. It is shown that the use of the root mean square current as an active is not always correct.
Key words: active value of current, pulse current, welding, aluminium

Budkin Yu. V., Redchits A. V. � Criterial-based approach to assessment of weldability of metals and alloys for welding constructions of flying vehicles

The methodology of criteria-based approach to the research of weldability which makes it possible to construct ranged lines of the weldability of different metals at the different ways of welding in relative numbers is developed.
Key words: flying vehicles, weldability, computer simulation, mass criterion

Krivonosova Ye. A., Gorchakov A. I. � Fractal analysis of fatigue failure face of weld metal

The research results of the features of the fatigue failure of weld metal with the use of a method of the fractal analysis of rupture faces are given. There is a new method for the physical metallurgy of welding. The fractal dimensionality of the rupture is determined, its connection with kinetic characteristic of the process which is the rate of fatigue crack growth is researched. The influence of the composition of electrode coating on the characteristics of the fatigue failure is established.
Key words: fatigue failures, welds, fractal dimensionality, rupture face, electrode coating

Tavolzhansky S. A., Pashkov I. N. � Influence of brazing alloy composition of copper-phosphorus-antimony on structure and technological properties of alloy

The research results of the near-eutectic zone of the alloys of copper � phosphorus � 2 % of antimony are given for the purpose of the study of the structure and properties of alloys. The eutectic composition of the alloy is identified, the conduct of hypoeutectic and hypereutectic alloys is examined and the use of hypereutectic optimal composition is substantiated for the achievement of the high technological properties of a brazing alloy and the quality of brazed joints.
Key words: copper-phosphorus alloy, antimony, brazing, brazing alloy, spreading, brazing of rotors, crystallization

Tsumarev Yu. A., Latypova Ye. Yu., Tsumarev Ye. N. � Influence of structure of overlap welded joint on its stress-strain state

The calculation results of the stress-strain state of overlap welded joints are given. These results confirm that the structure of a joint and the bend of joined plates considerably have an influence on the value of maximum working stresses in longitudinal fillet welds.
Key words: overlap joint, stress-strain state, fillet welds

PRODUCTION SECTION

Lebedev V. A., Krot A. F., Yurashevich V. G. � Method of control of transfer of fused drop at mechanized welding

A rather simple method of control of the electrode metal transfer is suggested to improve indexes of welding process in comparison with the uncontrollable mass carry.
Key words: mechanized welding, electrode metal, inverter welding power source, short-circuit voltage

Mikheyev A. Ye., Girn A. V., Ivasev S. S. � Surface hardening of titanium alloys with constricted arc

Mechanism of hardening of the titanium alloys surface at treatment with concentrated energy sources is considered. Research results of hardening of specimens of alloys ��1-0, ��6, ��14 by electric-arc method. It is shown that the microhardness of the blanket of hardened titanium alloys increased more than 2 times in comparison with usual strengthening treatment.
Key words: titanium alloys, concentrated energy source, electric arc, increase of hardness, wear resistance, corrosion resistance

Yeremin Ye. N., Losev A. S. � Flux-cored wire for hardsurfacing of knifes for cold cutting of reinforcing steels

A new flux-cored wire that provides deposited metal of the type of maraging steel with the alloying system Fe�Ni�Mo�Mn�Si�V�Ti�Cr�Al�B is developed. The technology of hardsurfacing of knifes for fixtures cutting is described. The results of exploiting tests of deposited knives are given.
Key words: flux-cored, maraging steel, boride, improving, deposited knives, cutoff

Zmiyevsky V. I., Butrim V. N. � Quality assessment of brazed joints working at low temperatures

The methodologies of the assessment of the mechanical properties of brazed joints intended for work at the cryogenic temperatures are given.
Key words: brazed joints, properties, cryogenic temperatures

Shtennikov V. N. � Contact soldering of electronics in international standards

Under our data, the international standards for electronics manufacture, demand of some specifications. In the present work offers on perfection of the international standards which can be used for updating operating and workings out of perspective national standards are formulated.
Key words: a contact soldering, temperature, time, solder, heat conductivity, a thermal capacity, electronics

ECONOMICS & PRODUCTION ORGANIZATION

Mylnik V. V., Mylnik A. V. � Problems of industrial organizations transition from chaos to the ordered industrial systems based on innovations

This article is devoted to analysis and study of the essence of chaos as an integral part of the evolutionary stage of socio-economic development of industrial systems. On the basis of the study showed that chaos is starting on Wednesday, on the basis of which the formation of a all types of systems. In this chaos is a necessary step in the development of the system, preceding and contributing to its evolutionary transformation in time and space. The authors introduce the concept of innovative chaos as a natural-term reaction of the socio-economic environment for the implementation of radical and other innovations. Formed an enlarged development of innovative chaos algorithm applied to the life cycle of an innovative product.
Key words: chaos, order, innovation, evolution, socio-economic, industrial organization, innovative chaos, radical innovation

EDUCATION & PERSONNEL TRAINING

Dmitrenko V. P., Messineva Ye. M., Fetisov A. G. � Features of training on area base profiles "Technogenic safety" upon transition to educational standards of the third generation (FGOS-3)

The paper substantiates the relevance of the educational system development in the field of safety. On an experience example of "Industrial ecology and production safety" and "Natural and technogenic safety and management of risk" departments of "MATI" � Russian State Technological University on formation of the main educational programme according to FGOS-3 competence character, features of two-level system of specialists training (bachelors and masters) are described on two main area profiles of 280700 "Technogenic safety": "Health and safety in a technosphere" and "Engineering protection of environment".
Key words: specialists training, educational standards, competence approach

BIBLIOGRAPHY

Contents of the foreign journals on welding

RF patents for the inventions in the field of welding

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