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	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�7 2015)
to russian

SCIENTIFIC-TECHNICAL SECTION

Gladkov E. A., Babkin A. S., Korobeynikov S. N., Sholokhov M. A., Korolev S. A. � Protective-gas shielded welding with electrode oscillation. Thermal task

The calculation methodology of temperature fields in welding with arc trapezoidal oscillation, including the temperature field equation for the layout of the movable surface heat source with a normal distribution, the trapezoidal oscillation equation as the sum of the Fourier series and the experimentally determined dependence of the arc spot heating effective radius r0 from the condition parameters is proposed. Dependence of the effective radius of the arc spot heating effective radius r0 from the condition parameters is obtained by the similarity theory method for CO2 and mixture Ar + 20 % CO2-shielded arc welding of the low-carbon and low-alloy steels. By comparing the calculated temperatures and field experiments results at pipes welding is shown, that the developed calculation method provides temperature fields accuracy sufficient for practical application.
Key words: arc, temperature field, trapezoidal oscillation waveform, spot heating, low-alloy steel

Sholokhov M. A., Erofeev V. A., Poloskov S. I. � Parameters calculating methodology of twin-arc multipass consumable electrode protective-gas shielded welding

The task solving methodology of the parameters values determining, which provide steady arc burning in a narrow groove by methods of computer engineering analysis is considered and the theoretical correlations associating the welding parameters with the size of the joint are adduced. The process technological parameters are determined by solving the inverse problem of the weld pool formation modeling under the influence of two welding arcs in a narrow groove during consecutive spasses. Completed parameter calculations are confirmed by multipass welding in narrow groove.
Key words: twin-arc welding, consumable electrode, narrow groove, computer analysis

Timofeev M. N., Galyatkin S. N., Mikhaleva E. I. � Influence of the modifying agent in the agglomerated flux composition on the weld metal structure and properties of the heat-resistant steel Cr-Mo-V

Automatic submerged arc welding are widely used in the production of nuclear power plants from heat-resistant steels. Solving the problem of obtaining welding joints with the strength equal the base metal strengh it is most urgent at welding the transition to the use of highly basic agglomerated fluxes instead of fused fluxes.
Key words: power plant, automatic welding, agglomerated flux, fused flux

Lukin V. I., Ioda E. N., Panteleev M. D., Skupov A. A., Ovchinnikov V. V. � Friction stir welding of high-strength aluminum-lithium alloys B-1461 and B-1469

The friction stir welding technology features or aluminum-lithium alloys V-1461, V-1469 are considered the process technical and economic benefits is shown. The technological process parameters and optimal welding conditions providing high level welded joint mechanical properties are carried out.
Key words: friction stir welding, aluminum-lithium alloys welding, welded joint forming, defects in friction stir welding

PRODUCTION SECTION

Chigarev V. V., Zarechenskiy D. A., Belik A. G. � Optimization of the fractional composition and melting indicators for powder tapes with exothermic mixture in the filler

The results of researches of influence of amount and factious composition of exothermic mixture are presented in filler of powder strip, made at the different parameters of rolling, on the indexes of melting and transition of alloying elements from an electrode in a surfacing metal.
Key words: powder strip, filler, exothermic mixture, indexes of melting, factious composition, alloying elements, transition coefficient

Litovchenko N. N. � Three-electrode arc metallizer � Innovation Project

Existing solutions electric metallizer (EDM) contain two electrodes � wire. The work of the classical scheme of the EDM is totally dependent on synchronization and speed of electrode wires and their mutual exact spatial location at the exit of the guide lugs. In the three-electrode EDM these defects are excluded completely.
Key words: arc stability, spray head, a graphite electrode

Volkov S. S. � Choice of the welded surfaces rational type at ultrasonic plastic welding

Carrying out systematization of cutting of joined edges depending on requirements to finished goods. The technology of ultrasonic welding of products of a round form from polycarbonate with application of V-a figurative form division of edges with receiving strong tight welded connection on all to a contour is developed.
Key words: polycarbonate, waveguide, generator, ultrasound, amplitude, pressure, cutting edges, temperature

Novosadov V. S. � Coating technology development of the multilayer composite solder components

The research results on the technology development of electroplating a multilayer composite solder Cr, Ni, Mn on the surface heat exchangers surfaces made from steel 12�l8�10�, ��16, BHC25 are adduced.
Key words: electroplating, multi-layered composite solder, corrosion resistance

EDUCATION AND TRAINING

Kazakov Yu. V., Sidorov V. P., Stolbov V. I. � Raising training level of students � welders for professional work

Two directions of training � methodical work are chosen: practically the focused training and the system approach to the decision of professional problems. The first direction is realized by training students of a working trade and to the decision of practical problems at the independent work, the second � through the system organization of all kinds or study, as models of professional problems and through training to techniques of the analysis of objects welding techniques.
Key words: professional work, practically the focused training, the system approach and the analysis, independent work of students, practical problems

INFORMATION

Golikova N. V. � Results of the forum "The Present and Future of welding production in Russia"

Lomunova N. Yu. � Exhibition Weldex: efficient marketing instrument for advancement of the welding purpose production

Shiganov N. V. � 95 years

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A. P. Ammosov

BIBLIOGRAPHY

Contents of the foreign journals on welding

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