e11

	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�11 2011)
to russian

SCIENTIFIC-TECHNICAL SECTION

Meyster R. A., Nakladych V. A., Meyster A. R. � Special features of aluminium MIG surfacing and welding using small current

When powered by a single phase arc rectifier with capacitor voltage multiplier and consumable aluminum wire diameter of 0,8 and 1,2 mm in argon provided sustained arcing at a current exceeding 12 A. Seams are formed with an automatic and mechanized welding products with thickness of 0,35 mm or more. The process proceeds with short circuits. Defined parameters of metal transfer in the arc.
Key words: MIG-welding, reversed polarity, deformation, short circuits, arc metal transfer

Scherbakov A. V., Goncharov A. L., Portnov M. A. � Research physical-and-mathematical model of heat-transfer processes at electron-beam welding of arbitrary shaped products

Physical-mathematical model of electron beam welding, taking into account the deformation of the surface of the weld pool and the angular aperture of the electron beam is proposed. The results of the simulation of welding butt weld parts made of bronze ��1�� compared with experimental data. The analysis of the results is carried out. Recommendations for the use of physical-mathematical model of the design process of electron beam welding of arbitrary shape parts in deep penetration, as well as for process control in automatic mode, are developed.
Key words: electron beam welding, physical-mathematical model, bronze, deep penetration

Son Y. V., Kim V. V., Usmanov �., Khusainov I. A., Kush M., Saidov R. M. � Upgrading welded joints of aluminium-magnesium alloys at arc laser welding using special fluxes

Research results of combined arc laser welding of AlMg3 and AlMg4,5Mn aluminium-magnesium alloys using special fluxes are covered. As a result virtue weld seams are obtained for the aluminium-magnesium plates up to 4 mm thick using 985 watt laser radiation capacity, 120 A arc current and 24 cm/min welding rate.
Key words: arc laser welding, fluxes, aluminium-magnesium alloys

Boulkov A. B., Peshkov V. V., Petrenko V. R., Balbekov D. N. � Analysis of metal deformation process in the diffusion welding zone of titanium shell-type constructions

Results of the investigation carried out on the OT4-1-alloy samples imitating two-layer shell-type construction are covered. It is established that the factor influencing on the welding process development and on the diffusive joint quality is the contact pressure distribution pattern along the surface width of joint. Numerical simulation data has shown that deflected mode arising in the contact zone is conditioned by friction forces and by influence of the welded workpieces deformation; it has adverse effect on the development of physical contact between welded surfaces.
Key words: diffusion welding, titanium joints, mode of deformation

PRODUCTION SECTION

Anakhov S. V., Pykin Yu. A., Matushkin A. V., Shakurov S. A. � Special features of metal-cutting plasmatron thermophysical designing

The analysis of several plasmotrons for metal cutting is done. Influence of the water cooling path features and cathode and nozzle geometry on the cooling efficiency is investigated. Principles of designing for cutting plasmotrons are offered, allowing to raise their cooling efficiency and resource.
Key words: plasmotron, plasma gas, plasma jet, hydrodynamics, profiling, heat transfer, radiation, turbulence

Ogolikhin V. M., Shemelin S. D. � An electrode holder and a bimetallic clamp manufacturing by explosion welding

A possibility of manufacturing an electrode holder conduit and bimetallic clamp for ore-thermal furnace by explosion welding is shown. It allows for significant reduction of construction steel intensity, for optimization of machine and aggregate operating characteristics, an increase of their reliability and durability.
Key words: explosion welding, sandwich-type composite, multilayer workpiece, electrode holder, electrosmelting aggregate, ore-thermal furnace, arc steel-smelting furnace, contact clamp

Tsumarev Yu. A., Ignatova Ye. V., Latypova Ye. Yu. � Strength assessment of soldered joints with bevelled edges

It is shown that the most proper design diagram for the lap-soldered joints is the diagram based on static equilibrium of the system consisting of two forces and the applied forces are to be directed straight-line to the opposing sides.
Key words: soldered joints, static equilibrium, hearing capacity, stress concentration factor

Mchedlov S. G. � Gas-thermal coating technologies at hardening and retailoring components� functional surface of internal combustion engine: A Review

A methodology of forming gas-thermal coating on the work surfaces of the internal combustion engine parts at their hardening and retailoring is described. It is introduced into industry, internal combustion engine components, such as crankshafts, distribution shafts, piston rings, insertion pieces, forks, tappets, levers and other parts for GAS, ZIL, KamAZ, et al. were hardened and recondition at RF car repair, motor transport and trade shops showing technical and economic and ecological effect.
Key words: gas-thermal coating, components, internal combustion engine, hardening, retailoring, physical-chemical-mechanical processes

ECONOMICS AND PRODUCTION ORGANIZATION

Rozinov A. Ya., Shatilov V. A., Logunov V. V. � Technical and economic efficiency of erection joints assembly and welding by unproductive labour expenditures reduction

A technical and economic efficiency calculation of unproductive labour expenditures reduction at the assembly process of erection joints of thing-sheet ship hull constructions is carried out.
Key words: assembly, welding, erection joints, labour expenditures, economic efficiency

EDUCATION & PERSONNEL TRAINING

Tibabisheva L. A., Saburov S. A., Tibabishev A. Yu., Boytsov I. V. � Multimedia modelling as a base for innovative instructional technologies

It is established that it is distance e-learning that becomes an integrator of advanced technology variety and is the motive force of implementing it into training. Process and phenomena multimedia modelling techniques are developed aimed at visual representation and higher adaptability of the courseware to natural-science branches of learning.
Key words: technology, multimedia modelling, natural-science discipline

INFORMATION

Ivanov A. N. � The 3rd Specialized exhibition Expo Control�2011

BIBLIOGRAPHY

Contents of the foreign journals on welding

RF patents for the inventions in the field of welding

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