REDUCTION OF NOISE OF SPINDLE UNITS OF METAL CUTTING MACHINES BY COATING APPLICATION ON THE SURFACE BEARING STRUCTURES AND KINEMATIC LINKS

SHELEH Valeriy K., Corresponding Member of NAS of Belarus, D. Sc. in Eng., Prof., Head of the Department “Mechanical Engineering Technology”, Belarusian National Technical University, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

TSYGANKOV Leonid E., Director, JSC “Minsk Automatic Lines Plant named after P.M. Masherov”, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

LEVANTSEVICH Mikhail A., Ph. D. in Eng., Assoc. Prof., Leading Researcher of the Laboratory of Gearing Systems and Processing Equipment, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

BELOTSERKOVSKY Marat A., D. Sc. in Eng., Assoc. Prof., Head of the Laboratory of Gas-Thermal Methods of Machine Components Hardening, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

The results of experimental studies of the damping capacity of metal and polymer coatings are presented formed by methods of gas-flame spraying, deformation cladding with a flexible tool and galvanic deposition. The logarithmic damping decrement was chosen as a criterion for evaluating the damping capacity. It is established that polymer coatings based on PET-grade polyethylene terephthalate (TS 6-06-S199-86), formed by gas-flame spraying, and nickel-based metal coatings, obtained by galvanic deposition, contribute to an increase of damping capacity in 35...45 %. Thin coatings based on copper and babbitt, with a layer thickness of 4 μm, formed by deformation cladding with a flexible tool, slightly reduce the damping capacity, however, when applied to the working tooth profile of gears, an integrated spindle node of the console milling machine OSh F-32 helps reducing its noise by 1...5 decibels.

gas-flame spraying, galvanic deposition, deformation cladding, flexible tool, rotating metal brush, coating, noise, vibration

• State Standard 12.2.107-85. Sistema standartov bezopasnosti truda. Shum. Stanki metallorezhushchie. Dopustimye shumovye kharakteristiki [Occupational safety standards system. Noise. Metal-cutting machines. Permissible noise performance]. Minsk, Mezhgosudarstvenyy sovet po standartizatsii, metrologii i sertifikatsii Publ., Belorusskiy gosudarstvennyy institut standartizatsii i sertifikatsii Publ., 2008. 16 p.
• Sanitary Norms SN 2.2.4/2.1.8.562-96. Shum na rabochikh mestakh, v pomeshcheniyakh zhilykh, obshchestvennykh zdaniy i na territorii zhiloy zastroyki [Noise at workplaces, in residential, public buildings and in residential areas]. Moscow, Minzdrav Publ., 1996. 9 p.
• Alekseev S.P. Borba s vibratsiyami i shumami v promyshlennosti [Vibrations and noise control in industry]. Moscow, Ekonomika Publ, 1969. 56 p.
• Meskhi B.Ch. Uluchshenie usloviy truda operatorov metallorezhushchikh stankov za schet snizheniya shuma v rabochey zone (teoriya i praktika) [Improving the working conditions of cutting machines operators by reducing noise in the work area (theory and practice)]. Rostov-on-Don, Izdatelskiy tsentr DGTU Publ., 2003. 131 p.
• Ivanov N.I. Inzhenernaya akustika. Teoriya i praktika borby s  shumom [Engineering acoustics. Theory and practice of noise control]. Moscow, Logos Publ., 2008. 423 p.
• Medvedev A.M., Litovko G.V. Proektirovanie akusticheski optimalnoy arkhitektury reduktornykh sistem stankov [Designing the acoustically optimal architecture of the gearbox systems of machine tools]. Uchenye zapiski [Scientific notes], 2013, no. 2–1(14), pp. 64–75.
• Kozochkin M.P. Metody snizheniya shuma metallorezhushchikh stankov i ikh uzlov: Metodicheskie rekomendatsii [Methods to reduce the noise of cutting machine tools and their components: Methodical recommendations]. Moscow, Mashinostroenie Publ., 1986. 68 p.
• Yanagimoto Kensaku, Ito Takahiro, Icimiya Ryoichi. Sound Radiation from Ventilation Aperture with Circular Thin Air Layer Setting Up Machinery Wall: Attenuation of DFN Radiated from Axial Flow Fan. Transactions of the Japan Society of Mechanical Engineers Series C, 2000, vol. 66, no. 646, pp.   2075–2081.
• Borisov V.B., Borisov E.I., Vasilev V.N., et. al. Spravochnik tekhnologa-mashinostroitelya. Tom 1 [Reference book of technologist and mechanical engineer. Vol. 1]. 4th ed. Moscow, Mashinostroenie Publ., 1986. 656 p.
• Chernyshev V.M. Dempfirovanie kolebaniy mekhanicheskikh sistem pokrytiyami iz polimernykh materialov [Damping of oscillations of mechanical systems with coatings from polymeric materials]. Moscow, Nauka Publ., 2004. 288 p.
• Levantsevich M.A., Lukashik A.A., Ishin N.N., Bodrykh  T.I., Stepanova L.I. Dempfiruyushchie svoystva tonkikh pokrytiy [Damping properties of thin coatings]. Progressivnye tekhnologii i sistemy mashinostroeniya [Advanced technologies and systems of mechanical engineering]. Donetsk, DonGTU Publ., 2003, issue 28, pp. 94–98.
• Bersudskiy A.L. Povyshenie rabotosposobnosti evolventnykh poverkhnostey zubchatykh koles [Improving the performance of involute surfaces of gears]. Vestnik mashinostroeniya [Mechanical Engineering Bulletin], 2005, no. 1, pp. 10–13.
• Pisarenko G.S., Matveev V.V., Yakovlev A.P. Metody opredeleniya kharakteristik dempfirovaniya kolebaniy uprugikh sistem [Methods for determining the characteristics of the damping of vibrations of elastic systems]. Kiev, Naukova dumka Publ., 1976. 86 p.
• Belotserkovskiy M.A. Tekhnologii aktivirovannogo gazoplamennogo napyleniya antifriktsionnykh pokrytiy [Technologies of activated gas-flame spraying of antifriction coatings]. Minsk, Tekhnoprint Publ., 2004. 200 p.
• Levantsevich M.A. Uluchshenie plavnosti khoda podvizhnykh uzlov stankov formirovaniem antifriktsionnykh pokrytiy na napravlyayushchikh skolzheniya [Improving the smoothness of the moving parts of machine tools by the formation of antifriction coatings on sliding guides]. Perspektivnye tekhnologii [Promissing technologies], 2011, pp. 542–566.