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УДК 621.375.826:621


Головко Л.Ф. д.т.н. проф., Блощицин M.С. ас., Третяк В.А. асп.
НТУУ «Київський політехнічний інститут» м. Київ, Україна

ФОРМУВАННЯ ЗНОСОСТІЙКИХ ПОВЕРХОНЬ МЕТОДОМ ЛАЗЕРНО-ПЛАЗМОВОГО НАПЛАВЛЕННЯ

Golovko L., Bloshhycyn M., Tretyak V.
The National Technical University of Ukraine "Kyiv Polytechnic Institute", Kyiv, Ukraine ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )

FORMATION OF WEAR-RESISTANT SURFACES BY LASER-PLASMA SURFACING

Розглядається комбінований процес лазерно-плазмового наплавлення, коли енергія плазми використовується виключно на транспортування та підігрівання порошку до температури 0,8-0,9Тпл, лазерний промінь розплавляє певний об’єм матеріалу основи і доводить до температури плавлення підігрітий плазмою порошок. Процес дозволяє збільшувати продуктивність наплавлення без адекватного підвищення собівартості. Комп'ютерне моделювання з використанням адаптивних методів дозволяює одержувати інформацію про температурні поля і оптимальні параметри лазерного випромінювання, параметри плазмового джерела, режими обробки, що зменшує кількість експериментів й витрати матеріальних ресурсів.

Ключові слова: моделювання, лазер, плазма, наплавлення, покриття

1. Коваленко В. С. Комбіновані лазерно-дугові процеси обробки матеріалів. Ч. 1. Ефекти комбінованої обробки і способи її реалізації / Коваленко В. С, Крівцун І. В. // Наукові вісті НТУУ «КПІ». - 2001. - № 5. - С. 33-44.
2. Лазерні технології та комп’ютерне моделювання / [Блощицин М.С., Головко Л.Ф., С.О. Лук'яненко та ін.]; під редакцією Л.Ф. Головка та С.О. Лук'яненко. – Київ: Вістка, 2009. – 296с.
3. Исследование тепловых процессов и структуры поверхностного слоя при лазерной наплавке порошковых матириалов. / [Перелома В.А., Щерба А.А., Подольцев А.Д., Кучерявая И.Н., Лихошва В.П., Шатрава А.П., Скрипка Н.Н.] – Киев : Институт электродинамики НАН Украины, 1998. – 47 с.
4. Блощицин М.С. Інтенсифікація процесу лазерної обробки використанням енергії електричної дуги / Блощицин М.С., Головко Л.Ф. // Вестник национального технического университета Украины «Киевский политехнический институт» - Машиностроение Київ: НТУУ «КПІ», 2005, - №47, с.39-42.
5. Shen L.C. Conductivity and constant of periodic porous media / Shen L.C., Liu C. // J.Appl. Phys.-1990.- Vol.67, N 11. - P.-7071-7081.

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УДК 621:658

 

Veselovska N.
Vinnytsia National Agrarian University, Vinnytsya, Ukraine ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )

ANALYSIS OF CURRENT MACHINE-TOOL COMPLEXES MACHINING IN ENGINEERING

Abstract. Purpose. Machine-tool complexes are high-quality the new level of the technical rigging and organization of production processes which are determined the use of not only the high-automated basic but also auxiliary technological equipment. In the article the analysis of the modern state of machine-tool complexes of tooling is considered in an engineer. Classification of machinetool complexes is offered.
Design/methodology/approach. Machining equipment is one of the main factors that determine the development of national economy. The effectiveness of using it directly affects the production of new machines for all industries, agriculture etc., which characterizes the level of society. Currently, no country produces all the necessary range of equipment, specializing only in some of its types. However, the level of modern manufacture requires the use of almost all kinds of machining and related auxiliary equipment. Therefore, review of trends and features tools not only causes concern, but is essential in developing and manufacturing modern machines.
Findings. The classification of modern machine systems with qualitatively new level of technical equipment and organization of production processes, which are determined by using not only main process equipment, but also components such as automated transport and storage subsystems, control and measurement and diagnostic equipment, computer, directly involved in the manufacturing process and provide automation features of technological, organizational, technical, organizational and economic
control of production processes, creating a flexible manufacturing system. The modern complex machine, introduced in these systems
on a given range of products unit of the main technological equipment, devices equipped with software control, replacement tools,
products drives the initial material and intermediate products, devices, waste management, control and technological process and
correction of quality products. It can operate in automatic mode and be integrated into the system of higher rank. Efficiency of
machine systems is largely determined by the functional purpose of control equipment that is taken as a base for the main process
equipment.
Keywords: machines, machine complex, technological equipment, production process, the classification performance.

 

REFERENCE
1.    Agregatno-modul’ne texnologizne obladnannia [Aggregate-leading supplier of modular tehnologіchne]: w 3x z.[kol.avtoriv pid red. U.M. Kuzniecova].Kirovograd: Imeks LTD, 2004. I z. 442 p; II z. 286 p; ІІІ z. 507 p.
2. Bazrov B.M. Osnovy texnologii mazinostroenia [Fundamentals of Mechanical Engineering] Moscow: mechanical engineering, 2007, 736 p.
3. N.R.Veselovska , V.B.Strutyns’kyy, O.V.Zelins’ka [Prospects for flexible computer-integrated manufacturing systems, "Research Notes": Interuniversity Collection (in "Engineering Mechanics") Lutsk: Lutsk State Technical universytet]2009. no 25, pp.53-64.
4. Orlov A.I. Teoria priniatia rezeniy: [ Theory of Decision]. Moscow: „Мart”, 2004. 656 p.
5. Pavlenko I.I. Promyslovi roboty:osnovy rozraxunku ta proektuvannia [Industrial robots: the basics of calculating and designing]. Kirovograd: KNTU, 2007. 420 p.
6. Puxovskii E.S. Texnologizeskie osnovy gibkogo avtomatizirovanogo proizvodsva[Technological principles of flexible automated production] Кyiv: Vyza zkola, 1989. 240 p.
7. Sxirladze A.G., V.I.Sokolov Metallorezysie stanki s programnym uprawleniem i podgotovka program [Machine tools with program management and training programs]. Kharkov: XPI,1992. 255 p.
8. Sarin U.S. Stanki s zislovym upravleniem [numerically controlled machine tools. Moscow]. mechanical engineering, 1976. 149 p.
9. Spur G.N., Krauze F.L. Awtomatizirowannoe proektirowanie w mashinostroenii [Aided design in mechanical engineering. Moscow]: mechanical engineering, 1988. 648 p.

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УДК 621:9.04


Kovalenko Ju., Bondarenko M., Bondarenko Ju.

Cherkassy State Technological University, Cherkassy, Ukraine, ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it )

INFLUENCE OF MODES OF ULTRASONIC CLEANING OF THE PIEZOELECTRIC ELEMENTS ON QUALITY OF THE SILVER ELECTRODES FORMED ON SURFACES

Abstract. Purpose. The study of quality of the prepared surfaces of elements is conducted from piezoelectric ceramics with the electrodes inflicted on it by determination of the modes of its effective ultrasonic cleaning.
Design/methodology/approach. During preparation and realization of experiment as experimental standards disks were used diameter of 35 mm and in thick 1 mm from the piezoelectric ceramics of ZTB-19, that were divided by three groups: standards the surface of that did not clear up before causing on its electrodes; standards the surface of that was subject to the chemimechanical cleaning pilot-scale; standards the surface of that cleared up an ultrasound in the environment of a spirit solution of olein acid (0,2%) at the different modes. The ultrasonic cleaning of standards was conducted in ultrasonic bath. A source of ultrasonic vibrations is an ultrasonic generator of UZDN-А. The cleared surface was investigated by the method of atomic-power microscopy with the use of atomic-power to the microscope of "NT-206"; the mode of operations of device is dynamic; probe - silicic "Ultrasharp CSC12". The analysis of the experimentally obtained data was conducted by the method of planning of twofactor experiment, in that for entrance variables power and time of the ultrasonic cleaning was elected. As a review cleaning (correlation of relative area of contaminations and relative imperfectness, %) quality was elected. 
Findings. Diminishing of relative area of contaminations is experimentally set from 74% to 38% for the surface of the standards cleared by a chemimechanical method, while diminishing of relative area of contamination for the surfaces of the standards cleared by an ultrasound resulted from 56% to 12%. Thus, relative crack surfaces of standards after the chemimechanical cleaning pilotscale remained at the level of initial standards, while for standards the surface of that cleared up an ultrasound in the environment of a spirit solution of olein acid a relative crack increased from 3% to 53-58%.
Originality/value. By basic parameters, that carry out substantial influence on quality of surface, that is subject there are cleaning time and power of ultrasonic generator to cleaning, the values of that get out coming from the values of frequency there is a cleaning process on that.
Keywords: piezoelectric ceramics, ultrasonic cleaning, atomic-force microscopy

REFERENCES
1. Sharapov V.M., Musienko M.P., Sharapova E.V. Pezokeramicheskie preobrazovateli fizicheskih velichin [Piezoceramics transformers of physical values]. Cherkassy: ChGTU, 2005, 595 p.
2. Sharapov V.M., Minaev I.G., Bondarenko Ju.Ju., Kisil' T.Ju., Musienko M.P., Rottje S.V., Chudaeva I.B. P'ezojelektricheskie
preobrazovateli. Spravochnoe posobie [Piezoceramics transformers: Certificate manual]. Cherkassy: ChGTU, 2004, 435 p.
3. Balkevich V.L. Tehnicheskaja keramika [Technical ceramics]. Moscow: Strojizdat, 1984, 256 p.
4. Frolov V.A. Analiz i optimizacija v prikladnyh zadachah konstruirovanija RJeS [An analysis and optimization are in the applied tasks of constructing of relay electric charts], Kyiv: Vywa shkola, 1991, 310 p.
5. Feldman L., Majer D. Osnovy analiza poverhnosti i tonkih plenok [Bases of analysis of surface and thin-films], Moscow: Mir, 1989, 344 p.

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