---

BLANK PRODUCTION

Korotkov V. A., Ananyev S. P., Shoor V. Ya., Shishkin Ye. I. — Plasma arc nanostructuring of steel

A high wearing capacity growth (as of 20 times) of the carriage bogie contact surface is obtained after small hardness increase. This is due to hardened case nanostructuring under the influence of plasma arc with fragmentation at the level of 50—80 nm.
Key words: plasma hardening, hardness, nanostructuring

TECHNOLOGIES AND EQUIPMENT FOR MACHINING, PHYSICOTECHNICAL PROCESSING, NON-CUTTING SHAPING

Guzeyev V. I., Shakirov P. R. — 3D-based simulation of computing cut-off layers’ dimensions at wheel hobbing

Calculation procedure of cut-off layers’ dimensions at wheel hobbing is covered. The procedure is based on the semigraphical method of the cut-off layers’ dimensions calculation and is developed up to solid modelling using up-to-date CAD-systems.
Key words: cut-off layer, hobbing, gear wheel, hobbing cutter, 3D-simulation

Belousov V. P., Dianova N. G. — Keyway milling

Symmetrical speed reducer and keyway milling calculation method are suggested. Icon-based dependencies of the constant rates used at calculation are plotted. Cutter shaft critical angular speed instability range is determined.
Key words: reducer, shaft, keyway, critical angular speed, mill

Galkin V. I., Stepanov Ye. I., Galkin Ye. V. — Special features of titanium thin-walled hemispherical shells drawing by plastic heading tool

Constructive and processing features of hemispheric solid-drawn thin-walled metal shells manufacturing from low-plastic hardly-deformed alloys by the method of plastic heading tool over rigid die block is considered. Results of the process finite element modelling and design methods of the process steps at die forming are given.
Key words: sheet presswork, hemispherical shell, titanium alloys, plastic heading tool, finite element analysis, mode of deformation

Ilinykh A. S. — Surface condition formation at wheel butt surface grinding

Surface condition formation at parts process by wheel butt surface grinding is considered. Research results of the grinding conditions effect on the surface roughness and surface layer strengthening degree are described. Recommendations on grinding conditions selection are given.
Key words: abrasive machining, grinding, surface condition, surface layer, hardness, roughness, residual stress

Boyko A. F. — Special features of the electrical erosion mechanism when using ultrashort current pulse

Open new mechanism of the additional metal removing from overheated surface erosive small holes in hard phase by explosive flow metallic pair, thrown from small hole after decline of the short impulse of the current. This scientific fact complements phenomenologist model of the electric erosion mechanism by B. N. Zolotyh new way of the removing the metal from electrode.
Key words: electroerosive processing, erosive small hole, specific erosion, coefficient of the form small hole, interelectrode clearance

Kudoyarov R. G., Basharov R. R. — Computational method for determination mechanical trajectory of the centre line of work spindle at high-velocity manufacturing

Mechanical trajectory design and modelling procedures of an electrical spindle centre line are developed, which takes into consideration effect of basic static and dynamic parameters of the spindle. The procedures may be used to predict tool relative motion path in order to determine efficient cutting conditions and to work out recommendations on upgrading electrical spindle construction.
Key words: spindle rotating accuracy, trajectory of the spindle centre line, processing accuracy, mathematical modelling, misbalance effect on the processing accuracy

TOOLING PRODUCTION

Postnov V. V., Semionov V. I., Letyaguin I. Ye. — Cutting tool working capacity increase based on methods of thermodynamics of nonequilibrium processes

Issues of cutting tool wear control are considered on the base of thermodynamic description of high-speed cutting features. An algorithm and procedure of cutter operability improvement by criterion of thermodynamic equilibrium of cutting operation are suggested.
Key words: thermodynamics, dissipative function, high-speed processing, tool wear, controllable speed variation

WELDING, RELATED PROCESSES AND TECHNOLOGY

Pesin M. V., Mokronosov Ye. D. — Technological support and surface layer quality, accuracy and life upgrade of the oil and gas production parts

Methods of ensuring and upgrading surface layer of the downhole sucker-rod pumps and drill pipe subs, of carrying out dimensions accuracy, and enlarging durability of highly loaded surfaces are considered. Saving rate and urgency of the ion-vacuum nitriding strengthening technology application are revealed.
Key words: strengthening, nitriding, downhole sucker-rod pump, drill pipe sub

SPECIAL TECHNOLOGIES

Nikitin I. M., Yanguirov I. F. — Electromagnetic accelerator as a mechanical oscillator for vibration transducers research

A construction of mechanical oscillator and research results using electromagnetic field theory are covered. Also an analytical relationship for determining up-thrust electromagnetic force is obtained and experimentally confirmed on the electromagnetic accelerator.
Key words: generator, electromagnetic accelerator, Reynolds number, short-circuited turn, vibration transducer

Kladnitskiy I. G. — Closed "uniform-measure"

State-of-the-art mechanisms, which convert uniform rotary motion to reciprocating one, have essential fault: progressive motion both direct and backward is non-uniform. This is prohibitive in the operation of many mechanisms, specifically of mechanisms realizing an electrode swinging at machine welding and deposition. Plotting, geometrical calculation and kinematic properties of the smooth curve, called (termed) closed “uniform-measure”, allowing for eliminating above mentioned shortcoming are covered.
Key words: cam and coulisse mechanisms, uniform rotary motion, machine welding and deposition

Kopylov Yu. R. — Computer simulation of turbo-driven pump assembly components’ vibroimpact hardening

Laws of distribution of high-altitude parameter of a roughness and residual pressure of the first sort in a superficial layer of a cavity of the case turbo-pump aggregate are presented at it vibratory percussion hardening. Results received by means of computer modelling.
Key words: vibratory percussion hardening, computer modelling, the case, turbo-pump aggregate

Ismaguilov F. R., Afanasyev Yu. V., Khayrullin I. Kh., Pashali D. Yu., Poroshin Yu. G. — Techniques of higher technological effectiveness of the explosion-proof electric motors

On the base of the developed procedure a tryout of an explosion-proof motors series by workability is carried out. After comparing an estimation of the obtained results is fulfilled.
Key words: workability, explosion-proof asynchronous motor, quality, material unification

Beschekov V. G., Kotov A. N., Astakhov Yu. P., Nosov A. G., Zheleznyy A. G., Krasulya A. A. — Engineering of the process flowsheet and rigging aids for the spherodynamic resonance deformation method at volumetric material nanostructuring of the machine components

Progress trend of the method of spherodynamic resonance deformation at volumetric nanostructuring of the component materials is considered.
Key words: plastic deformation, mechanism, nanolayer

TESTING AND DIAGNOSTICS METHODS IN ENGINEERING INDUSTRY

Sattarov R. R., Ismaguilov F. R., Khayrullin I. Kh., Pashali D. Yu. — Eddy-current geometry control method of the thing-walled conducting bodies of revolution

An eddy-current inspection method of the energy electromechanical converter componentry as thin-walled conducting rotary body of complex geometry is considered. Mathematical formulation of the method is given and means for technical realization of the method are suggested.
Key words: technological process, eddy-current inspection method, electromechanical energy converter, eddy current probe, complex geometry

INSTRUMENT-MAKING TECHNOLOGIES

Gavrish S. V., Levkin M. A., Sherstnev D. V., Guevorkyan A. E., Zhelayev I. A. — Design principles of the sapphire discharge sources

Engineering philosophy of the emitting sources discharging in xenon and caesium vapour is considered. Processing characteristics of joining metal and sapphire are studied, tension in seals is calculated and dimensions of the joint details are selected.
Key words: gas-discharge lamp, flash caesium-vapour lamp, envelope

PROCESSES AND PRODUCTION AUTOMATION AND CONTROL, CAD SYSTEMS

Volkova G. D., Metasov S. G., Chumichev A. I., Feofanov A. N. — An approach to creation of a virtual environment for special processing equipment designing

Necessity of change for virtual design environment, which will provide visualization of the design solutions, is shown. Requirements to the virtual design environment are established.
Key words: process equipment, transfer line, designing, virtual environment

FOREIGN EXPERIENCE

Potapova G. S. — Review of the foreign journals

INFORMATION

Ivanov A. N. — International exhibition "MITEX’2010"

Russian Engineering Union reports

---

Адрес: 127015, Москва, а/я 65.
Тел.: +7 (495) 640-7903
e-mail: ic@ic-tm.ru

© 2008-2024, ООО “Издательский центр ”Технология машиностроения”
Создание и реклама сайтов - www.itsite.ru