e12

	Journal "Svarochnoe Proizvodstvo"	ISSN 0491-6441
	Contents (�12 2011)
to russian

SCIENTIFIC-TECHNICAL SECTION

Panchenko V. Ya., Vasiltsov V. V., Grezev A. N., Galushkin M. G., Yegorov E. N., Il�ichiov I. N., Pavlov M. N., Soloviov A. V., Misyurov A. I. � Processes of metallic powder selective laser sintering to manufacture products with axial symmetry

Results of metal powders selective laser sintering technology application to manufacture products with axial symmetry are covered. Pilot production laser jet created on the base of high-power industrial CO2-laser and manipulator five-axis bench is described. Metallographic analysis of the obtained products verified generation of composite structures with high service properties.
Key words: laser, laser technology, selective laser sintering

Anakhov S. V., Pykin Yu. A., Matushkin A. V., Shakurov S. A. � Gas-dynamic features of plasmatron designing

The analysis of several plasmotrons for metal cutting is done. Influence of the air-gas path features on their dynamic and power characteristics is investigated. Principles of designing for cutting plasmotrons are offered, allowing to raise efficiency and acoustic safety of their work. Approximating dependences for the simplified analysis of designed constructions efficiency are resulted.
Key words: plasmotron, flow dynamics, dynamic pressure, swirl canals, plasma gas, plasma jet, air-gas path, profiling, throat, an acoustic spectrum, sonic frequency, noise radiation

Sakhno L. I., Likhachiov D. I., Sibirko A. S. � Inverter frequency influence on the transformer mass of the resistance-welding machine

A transformer magnetic conductor cross-section area calculation method is suggested for a resistance-welding machine inverter power supply in broad of frequency variation. A cross-section area dependence on frequency is obtained for a transformer with ironclad magnetic conductor and sandwich winding. It is shown that cross-section of the magnetic conductor is minimal at definite frequency of inverter.
Key words: transformer, resistance welding, inverter power supply, magnetic conductor, effective resistance, inductance

Yazovskikh V. M., Belenkiy V. Ya. � Thermal processes at surfacing cylindrical solids by strip electrode

Strip-electrode surfacing thermal patterns of solid hollow length-limited cylinders is developed. The models are constructed when solving heat conduction equation in cylindrical coordinates by Green function method. With the help of the obtained models it is possible to evaluate weld beads geometry, thermal cycles of different areas both at circular and helical-path surfacing. Temperature fields� computation at surfacing by a strip 50 mm wide is covered. Computation and plotting are carried out by the instrumentality of the Mathcad software.
Key words: surfacing, thermal processes, temperature field, electrode

Shtrikman M. M., Kaschook N. M. � Combined friction welding

Aluminium friction welding features and advantages of combined friction welding ensuring favourable conditions of root weld formation, fine-grain structure formation, effectiveness increase of material mixing and compaction and others are considered.
Key words: friction welding, welded joints, root weld, convexity

PRODUCTION SECTION

Golubenko Yu. V. � Formation mechanism and kinetics of polythick components� joints at laser beam welding

A possibility of obtaining welded and brazed-welded joints at laser welding of a thing plate and a bar is considered.
Key words: laser welding, plate, bar, soldered (brazed)-welded joint

Shiganov I. N., Samarin P. Ye. � Investigation of the slip-layer binder composition and further layer flashing by the fiber laser radiation

This article describes methods for producing wear-resistant coatings, among which method of melting of preplaced coatings by fiber laser radiation takes a special place. Different variants of binders to create slip layer were discussed. Polyester resin was selected as the binder, since it meets all the requirements for creating of slip coating.
Key words: slip layer, laser, treatment, polyester resin

Mayorov L. N., Taksants M. V. � Capture of the welding zone image data for control systems

Protection methods of computer vision photodetectors against hazardous interference of the welding process are considered. Practice-proven engineering solutions reducing to admissible minimum this effect are described. Approach to accent lighting metallic surfaces of the welded components of plane, cylindrical and spherical forms are covered. Optical schemes of booster light and advises on the parameters selections are given.
Key words: welding, control, monitoring, illumination, photodetector, machine vision

ECONOMICS AND PRODUCTION ORGANIZATION

Fiodorov V. K., Benderskiy G. P., Pozdnyakov K. K. � Innovative potential development features of the manufacturing manpower resources

Article gives a characteristics of workforce and examines principals and approaches to development of it�s innovation in modern conditions.
Key words: innovation potential, workforce (labour resources), innovative development, high tech, agronomical principals

INFORMATION

Suslov An. A. � The 11th International specialized exhibition for welding materials, equipment and technologies WELDEX�2011

BIBLIOGRAPHY

Contents of the foreign journals on welding

RF patents for the inventions in the field of welding

Alphabetic index of the articles published in 2011

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