SCIENTIFIC-TECHNICAL SECTION

Sidorov V. P., Kovtunov A. I., Khurin S. A. — Mathematical model of penetration at machine surfacing

An approach to parent metal cross-section area theoretical dependence determination is suggested. It consists in finding the area as an arc power (stream) and welding rate power function. The exponents of the sought-for function may be determined on the base of moderate number of experiments. Illustrated by an example of CO2 machine surfacing an efficiency of the used approach and simple expressions availability for the parent metal share in weld material is shown. Insufficient capabilities of standard welding (surfacing) processes to regulate weld chemical composition are established.
Key words: surfacing, cross-section area, parent metal, weld metal

Brunov O. G., Solodsky S. A., Zelenkovsky A. A. — Arc initiation dynamics at gas-shielded welding

The analysis of ignition of an arch with a various start of an electrode wire is carried out, at welding fusion an electrode in protective gases. Dependence of the forces operating on destruction superficial of a film at an end face of a wire is defined. Areas of stable ignition of an arch are defined.
Key words: stability of ignition of the arch, mechanised quarrels’s, destruction super bicial films

Vlasov A. F., Kuschiy A. M. — Processing characteristics of electrodes covered by exothermal mixture for tool steel deposit welding

Experimental methods established that the exothermic reaction on the stage of heating and melting of the electrode surface occur when the content in it more than 35 % of the exothermic mixture. The data on the effect of exothermic mixture in the coating of the electrodes on the performance of their melting are showed.
Key words: electrode, exothermic mixture, welding, surfacing, productivity

Chigarev V. V., Gavrish P. A., Gribkov E. P. — Study of the flux cored wire drawing to weld copper and steel

A flux cored wire drawing deflected mode mathematical model taking into consideration actual geometric parametrisation, mechanical properties and contact friction conditions along the deformation site, as well as shell plastic deformation feasibility is developed.
Key words: deformation ratio, contact stress, shear stress, front and rear tension level

Kazakov Yu. V., Potekhin V. P. — On the horseshoe-shaped welded core formation mechanism at resistance seam welding of components with large difference in thicknesses

Research results of the current-density distribution features at resistance seam welding are covered and temperature fields in the welding zone are determined. It is established that current-density distribution irregularity causes horseshoe-shaped welded core formation.
Key words: resistance seam welding, current density, temperature field, welded core

Lookin V. I., Kovalchouk V. G., Samorukov M. L., Gridnev Yu. M., Zheguina I. P., Kotelnikova L. V. — Research of the friction welding and heat treatment characteristic effect on the heat-resistant wrought nickel alloys weld grade

Heat-resistant wrought nickel alloys ВЖ172 and ЭК79 friction welding techniques and sequence of heat treatment and welding are covered. Welding conditions are chosen. Results of mechanical tests determining both short-term and long-term ultimate strength and percussive bending resistance, as well as of welds metallographic and fractographic examinations are given.
Key words: friction welding, heat treatment, welded joints, mechanical properties

PRODUCTION SECTION

Zmiyevsky V. I. — Estimate of the welding engineering quality management systems

The present requirements to the welding fabrication quality management systems certification procedures are analyzed and suggestions are offered how quality management systems certification authorities may check requirements execution.
Key words: welding processes, quality, conformance evaluation

Bazhanov A. V., Stepanov V. V., Frolov V. A., Fiodorov S. A., Tarkhanov V. V., Zotov P. V. — Computerized simulator application at electric welder training

Computerized welder trainer ТСДМ 6010 by the ECOINVEST Company is described. The simulator is based on welding process imitation by low-amperage arc. The trainer usage allows for training programme successful carrying out, creates favourable conditions for correcting operations by on-line and valid process quality checkout and for necessary welding skills formation dynamics.
Key words: manual arc welding, simulator, educative learner’s guide

Tsumarev Yu. A. — Examples of fixed joints obtaining by hybrid techniques 

It is suggested to consider development of the fixed joints production techniques as an integrated interaction technology in the field of welding, soldering, gluing and mechanical joining in the aggregate with set-up operations.
Key words: fixedjoints, soldering, welding, gluing, mechanical joint

Senkevich K. S., Shlyapin S. D. — Research of the titanium nickellide-based alloys diffusion welding

Research results of a titanium nickellide-based alloy welding are covered. Effect of the welding conditions on the flat semi-product joint efficiency is studied. It is established that major cause of the joint mechanical properties deterioration is interaction of the welded surfaces with the residual oxygen which actuates formation of the titanium-concentrated fragile intermetallids in the circumference of the welding zone.
Key words: diffusion welding, shape memory effect alloys, titanium nickellide, intermetallid, structure, strength

ECONOMICS AND PRODUCTION ORGANIZATION

Reshetov V. V. — Competitive production organizational pattern

Construction of a target composition of the organizational structure including the basic organizational positions and priorities of competitive manufacture in conditions productions spends to necessity of search and formation of adaptable organizational structures in view of innovative potential. The organizational structure of competitive manufacture should be constructed proceeding from key conditions of efficiency – the innovations, a filled up opportunity of investments, purposefulness and the adaptation to new conditions of an economic climate.
Key words: principles, value, system, purposefulness, organizational positions, organizational priorities, organizational culture, organizational beginning, life cycle, processes, composition

EDUCATION & PERSONNEL TRAINING

Sukhov S. V., Ryakhovsky A. P. — Graduating student job placement problem

Problem of high school graduates’ job placements are considered. Factors influencing on the graduating student’s choice of the place of employment are covered.
Key words: technical and engineering employees, institute of higher education, enterprise specialist

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A. I. Akulov is 85 years old

INFORMATION

Korotkov V. A. — The 5th conference of Ural "Welding. Renovation. Tribotechnika"

BIBLIOGRAPHY

Contents of the foreign journals on welding

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