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	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�7 2014)
to russian

SCIENTIFIC-TECHNICAL SECTION

Karkhin V. A., Zharkov S. V. � Calculation of heat processes at plate heating by movable axisymmetric heat sources

The described analytical solutions of the problem of heat conductivity when heating thing plates by movable axisymmetric heat source with different radial distributions allow for quick calculation of temperature field data.
Key words: plate, heat conductivity problem, temperature field, surface heat irradiation, axisymmetric heat sources

Boiko I. A., Grin A. G. � Effect of the flux cored wire surface condition on the stability of the arc process

The paper deals with the influence of surface roughness of flux-cored wire for technological characteristics. The analysis of the surface of the self-shielded flux-cored wires for surfacing press machine of hot pressing. It was found that as the roughness of cored wire, in the case of making it a shell of steel 65, reduced voltage ripple on the arc welding current, expanding the working range of modes, increased wear time between the current supply terminals.
Key words: flux-cored wire surfacing, coating material of flux-cored wire, surface roughness, the range of modes of surfacing

Sidyakin V. A., Lyuks D. I. � Butt-seam pipe-welding by low pressure arc in a transverse magnetic field

In order to enlarge a diameter of tubular billets welded by the welding set "Styk-3", butt-seam welding practice by low pressure arc was updated by overlapping transverse magnetic field onto the arc in the gap between two butts. Application of magnetic field significantly improved heating uniformity of the end surfaces thanks to superposition on the chaotic walk of cathode spots their rotation along the tube ends. The authors studied low pressure arc features in transverse magnetic field and identified best value of magnetic induction. Neodymium disk-shaped constant magnets with axial magnetization were used to generate transverse magnetic field. Range diameters of the tubular billets to be welded by the welding set "Styk-3", has been extended up to 70 mm.
Key words: butt-seam welding, pipes, low pressure arc, cathode spot, transverse magnetic field

Kuryntsev S. V. � Investigation of microstructure and mechanical properties of the welded joints obtained by tongs laser welding

The mechanism of the formation of the weld tick-borne laser welding of heterogeneous and homogeneous metals, metallurgical studies conducted and the mechanical testing of welded joints, described the features of the properties of the weld zone and the base metal of the work pieces.
Key words: tick welding laser engraving, metallography, mechanical testing

Bodrikov I. V., Guerasimov Ye. A., Kurnikov N. A. � Influence of lithium compounds on flux functional characteristics for aluminium soldering

The article covers research results of the effect of lithium compounds addition (LiNO3, LiCl, LiBr, LiF) in eutectic KF�AlF3 on the spreading of solder, strength and microstructure of the soldered joints. Dependences of the spreading area of the solder on the compounds of the test joints are given, as well as microstructures, mechanical test data of the soldered joints.
Key words: soldering, lithium compounds, aluminium, strength, microstructure

PRODUCTION SECTION

Komarov M. A., Guitarsky L. S. � Welding of beryllium

The article covers weldability research results of commercial beryllium. It describes typical weld defects, analyzes interrelation between impurity content and liability to longitudinal and cross crack formation. Basic requirements to welding conditions and impurity content when producing hermetically sealed weld assembly are considered. Availability of qualitative beryllium welded joints using adding material from aluminium alloys has been substantiates and confirmed. It was established that beryllium welded joints, carried out without use of adding material, had very low plasticity when strength was about 50 per cent of the base metal strength. The strength of the beryllium welded joints with aluminium adding materials makes 70 per cent of the parent metal and it shows high plasticity.
Key words: beryllium, welded joints, adding material, strength, plasticity

Lyalyakin V. P., Solovyov S. A., Aulov V. F. � Strengthening and componentry rework of the tillage machines by welding-and-surfacing techniques: A Review

The article provides an analytical overview of existing methods hardening and recovery workers of agricultural tillage machines shows the typical wear parts soil-processing machines, showing feasibility results hardening and recovery details are some suggestions of areas of research investigations.
Key words: working bodies of agricultural machinery, wear, resource, surfacing, high frequency currents

Lukin V. I., Rylnikov V. S., Afanasyev-Khodykin A. N. � Nickel-based brazing alloy to braze heat-resistant alloys and steels

The basic types the braze materials applied for brazing of heat resisting alloys and steels are considered. Their performances and feature are reduced. Aspects of a choosing solders of various materials depending on conditions the brazing and operation articles are considered. Examples application technique the high-temperature brazing are reduced at manufacture of articles aviation technics.
Key words: brazing, braze material, diffusive brazing, heat resisting alloys, half-finished products of braze materials

Shtennikov V. N. � Resistance brazing of electronic devices

The dependences allowing to calculate the desired temperature soldering contact within the parameters of soldering tools and solder joint are given.
Key words: temperature brazing, soldering time, intermetallic compounds, thermal conductivity, heat capacity, soldering station

Lukina N. F., Dementyeva L. A., Anikhovskaya L. I. � Glued prepregs are prospective materials for metal-polymeric structures

The stages of work to improve the durability and the life of the aircraft technique are described. Distinctive features of adhesive prepregs are listed and the results of their application are described, the results of studies of a new class of alumopolymer layered materials brands SIAL � hybrid material based on thin sheets of aluminium structural alloys and plastic based on adhesive prepregs obtained by a malt-type adhesive bonding and fiberglass with different reinforcement structure � are described.
Key words: laminate, adhesive prepregs, thin sheets of aluminium structural alloys

ECONOMICS AND PRODUCTION ORGANIZATION

Neminuschaya Ye. N. � Analysis of the enterprise liability types for tax violation and offence commitment

The article analyzes the types of enterprise liability for tax offenses and crimes. The author studies administrative violations in the field of taxation. Analyzes the legal consequences of committing tax offenses and crimes.
Key words: tax offenses, tax crimes, sanction, penalty, tax control, criminal liability, administrative liability

* * *

A. A. Dubov is 70 years old

BIBLIOGRAPHY

Contents of the foreign journals on welding

RF patents for the inventions in the field of welding

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