e10

	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�10 2011)
to russian

SCIENTIFIC-TECHNICAL SECTION

Novoseltsev Yu. G., Vasilyev-Polikin K. S., Krylov V. M., Tuf S. M. � Analysis of the plasma effective and stable working conditions at welding processes

Research results of plasmatron function in binary plasma-forming mixtures based on gas with high thermal conductivity aimed at ensuring plasmatron electrode life and arc stability are covered.
Key words: plasmatron, binary plasma-forming mixtures, electrode, arc

Matrikaynen Yu., Hiltunen E., Karkhin V. A., Ivanov S. Yu. � The Al�Mg�Si alloys welded joints� sensitivity evaluation procedure to liquation cracking

Heat-treatable 6005-T6 alloy welded joints were studied. The temperature dependences of mechanical properties under welding conditions were obtained using the Gleeble 3800 System. The unknown volume heat source parameters were found by application of inverse modeling. The three-dimensional heat conduction and thermomechanical problems were solved numerically. Liquation cracking criterion in terms of accumulated plastic strains was proposed. The proposed technique allows the prediction of liquation cracking in arc welding of the 6005-T6 alloy.
Key words: welded joints, aliminiun alloy, mechanical properties, liquation cracking

Yeriomin Ye. N., Losev A. S. � Boride compounds application in flux cored wire for maraging steel overlaying welding

The results of analysis of the structure and properties of deposited metal of maraging steel of Fe�Ni�Mo�Cr�V�Si�Ti�Al type alloy, hardened by boron compounds are demonstrated. Is analysed the role of borides in formation of phase structure and a structural condition of a steel after heat treatment. It is shown that such metal has high thermal stability, wear resistance. It allows recommending it for hardening of working surfaces of stamping tool.
Key words: deposited metal, maraging steel, boride, improving, thermal stability, stamping tool

Knyazkov A. F., Dementsev K. I., Knyazkov V. L. � Investigation of the covered electrode welding processing characteristics at modulated-current welding

Characterization procedure of modulation, i.e. supplemental pulse duration in the range of main pause behaviour and their repetition rate are covered.
Key words: electrodes, welding, modulated current, pulse, repetition rate

Yemelyushin A. N., Petrochenko Ye. V., Nefedyev S. P. � Study of the structure and percussive-and-abrasive wear resistance of the Fe�C�Cr�Mn�Si-system coatings auxiliary nitrogen-doped

Structure and properties formation features of 250X15�20� plasma-powder coating are considered. Effect of the auxiliary alloying coatings by nitrogen introducing nitrided ferrochromium into doped powder is investigated. Influence of the surfacing conditions and added metal chemical composition on its hardness and percussive-and-abrasive wear resistance is shown.
Key words: plasma-powder surfacing, nitriding, percussive-and-abrasive wear resistance, surfacing conditions, chrome-manganese coating

PRODUCTION SECTION

Starchenko Ye. G., Mastenko V. Yu., Volobuyev Yu. S., Khodakov V. D. � Electroslag tape surfacing with special fluxes of the atomic-power and petrochemical equipment components

Research results of single- and two-electrode electroslag tape surfacing using new ceramic fluxes are covered. Process is designed and advantages of the single- and two-electrode electroslag tape surfacing at deposition of single- and double-layer anticorrosive coating inside equipment body are shown.
Key words: single- and two-electrode electroslag surfacing, tape electrode, flux, magnetic field, deposited bead, equipment

Parshin S. G. � Steel MIG-welding using nano-structured electrode materials

Research results of the nano-structured halogen-bearing coatings� influence on the arc power properties and on electrode material fusing at MIG-welding, which allowed for improving seam formation and process efficiency raise are given.
Key words: nano-structured coatings, arc, welding, electrode material

Semionov V. N., Akimov N. V. � Causes of cracking in ��202 and ��61 alloys at welding constructions of liquid-propellant rocket engines

Research results of crack formation causes in constructions from the ��202 and ��61 alloys are covered. Guidance considering evaluation principal criteria of heat stress and deformation and ensuring fine-grained structure formation and increase of alloy plasticity is offered.
Key words: welded joints, crack, welded seam, heat-affected area, structure, plasticity

Bardin A. I., Nikitin S. V., Romanov A. V., Dzhanikyan A. V., Biryukov A. P. � Triphase welding inverter "Forsage � 502"

Technical characteristics, principal functions and modes of new welding maschine "Forsage-502" operating from triphase electric mains or from autonomous moveable power sources are covered.
Key words: arc welding, welding machines, "Forsage", technical characteristics

Ogolikhin V. M., Shemelin S. D. � Sandwich metal-and-powder composite material and process of its manufacture by explosion welding

A composite production method using energy of explosives is considered.
Key words: explosion welding, sandwich-type composite material, multilayer feedstock, powder material, compacting, laminar pipe

Volkov S. S. � Joining thermoplastics and metallic or non-metallic materials

Hardware and thermoplastics joining features are considered. It is shown that metal mountings� insertion into plastic produce by ultrasound is an advanced method of permanent joint production of plastic articles.
Key words: permanent joint, thermoplastics, ultrasonic welding, metal mountings

ECONOMICS AND PRODUCTION ORGANIZATION

Agarkov A. P., Golikov A. M. � Efficiency of managerial decisions at a plant

Social and economic system cost-effectiveness is considered. It is shown that enterprises ought to carry out assessment of the managerial decisions and arrangements.
Key words: enterprise, organizing managerial decisions, management

EDUCATION & PERSONNEL TRAINING

Beklemishev N. N., Tibabisheva L. A. � Processing engineers training comprehensive innovation integrated into scientific and educational environment

The article deals with the MATI (Technological University) image formation as an up-to-date university using innovation technique in the scientific and educational territory and meeting current needs of the feasible sector of economy.
Key words: advanced training of personnel, scientific and educational centre, integration of science and education, innovative infrastructure

INFORMATION

Ivanov A. N. � The 6th International specialized "Photonics. Lasers, optics and application� 2011"

"Kemppi", LTD, daughter company of Kemppi Oy in Russia is 5 years old (Interview with director of group of companies Kemppi Oy A. Rantasalo)

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