OBRABOTKAMETALLOV technology Vol. 26 No. 3 2024 5. Ultrasonic treatment of epoxy adhesive leads to a decrease in viscosity and a change in its structure after polymerization. 6. The optimal treatment mode is vibration amplitude of 10 µm, at which the viscosity decreases by 70 % with slight heating of the mixture, and the shear strength increases by 24 %. 7. The vibration amplitude of 9 µm during the assembly of the adhesive-threaded joint allows combining ultrasonic effects that lead to a maximum increase in the relative torque of loosening and provide the greatest increase in the properties of the epoxy adhesive; 8. The adhesive-threaded joint assembled according to the proposed method has a relative loosening moment 1.95 times greater than that of the test joint; 9. The proposed assembly method is intended for highly loaded threaded joints operating under conditions of vibrations and cyclic loads. Also, this method allows increasing the axial force by increasing the torque without damaging the thread elements and using larger diameter threads. References 1. BerdnikovL.A. Osnovy tekhnologii proizvodstva i remontaavtomobilei. Konspekt lektsii pokursu [Fundamentals of technology for the production and repair of automobiles. Lecture notes for the course]. Nizhny Novgorod, Nizhny Novgorod State Technical University n.a. R.E. Alekseev Publ., 2015. 339 p. ISBN 978-5-502-01043-6. 2. Bobrovitskii V.I., Sidorov V.A. Mekhanicheskoe oborudovanie: tekhnicheskoe obsluzhivanie i remont [Mechanical equipment: maintenance and repair]. Donetsk, Yugo-Vostok Publ., 2011. 238 p. ISBN 978-966-374636-4. 3. Osipov K.N. K voprosu otsenki kachestva sborki rez’bovykh soedinenii v avtomatizirovannom proizvodstve [To the question of assessing the quality of assembly of threaded connections in automated production Avtomatizatsiya i izmereniya v mashino-priborostroenii, 2018, no. 1 (1), pp. 23–29. (In Russian). 4. Lipka V.M., Rapatskii Yu.L. Otsenka vliyaniya parametrov rez’bovykh krepezhnykh izdelii na kachestvo sborki silovykh agregatov avtomobilei [Assessment of the influence of parameters of threaded fasteners on the quality of assembly of automobile power units]. Vestnik SevNTU [Bulletin of SevNTU]. Sevastopol, 2010, vol. 107, pp. 121–127. 5. GOST ISO 898-1–2014. Mekhanicheskie svoistva krepezhnykh izdelii iz uglerodistykh i legirovannykh stalei. Ch. 1. Bolty, vinty i shpil’ki ustanovlennykh klassov prochnosti s krupnym i melkim shagom rez’by [State Standard ISO 898-1–2014. Mechanical properties of fasteners made of carbon steel and alloy steel. Pt. 1. Bolts, screws and studs of specified property classes with coarse and fine pitch thread]. Moscow, Standartinform Publ., 2015. 59 p. 6. Birger I.A., Iosilevich G.B. Rez’bovye i flantsevye soedineniya [Threaded and flanged connections]. Moscow, Mashinostroenie Publ., 1990. 368 p. ISBN: 5-217-00834-2. 7. Pavlenko V.A [Study on the causes of the weakening and destruction of the bolted connections of the casing of the reducer traction motor of electric locomotive]. Elektroprivod na transporte i v promyshlennosti [Electric drive in transport and industry]. Proceedings of the All-Russian Scientific and Practical Conference. Khabarovsk, 2018, pp. 64–69. (In Russian). 8. Chang H.-L., Chen C.-M., Lee C.-Y., Huang Z.-X. Study on the fastening property of precision locknut under simulated dynamic impact loading with consideration of interference factors. Journal of Mechanics, 2024, vol. 40, pp. 19–30. DOI: 10.1093/jom/ufae001. 9. Kováčiková P., DubecA., Koštialiková D. The threaded part wear of the tensioner with lock nut. IOPConference Series: Materials Science and Engineering. IOP Publishing. 2020, vol. 776 (1), p. 012094. DOI: 10.1088/1757899X/776/1/012094. 10. Zhukovskii N.E. Raspredelenie davlenii na narezkakh vinta i gaiki [Pressure distribution on screw and nut threads]. Zhukovskii N.E. Polnoe sobranie sochinenii. T. 8 [Complete works. Vol. 8]. Moscow, 1937, pp. 48–54. ISBN 978-5-458-58194-3. 11. Coria I., Abasolo M., Gutiérrez A., Aguirrebeitia J. Achieving uniform thread load distribution in bolted joints using different pitch values. Mechanics & Industry, 2020, vol. 21 (6), p. 616. DOI: 10.1051/meca/2020090. 12. Malygin V.I., Kremleva L.V., Lobanov N.V. Vysokonagruzhennoe rez’bovoe soedinenie sudovogo mashinostroeniya [Highly loaded threaded connection for marine engineering]. Patent RF, no. 172373 U1, 2017. 13. Tskhai E.B., Stolberov L.E., Klopotov A.A. Sposob izgotovleniya rez’bovogo soedineniya i snizheniya nagruzki na ego vitki u opornogo tortsa gaiki [Method of manufacturing threaded connection and loading the load on its loops in the face end support nut]. Patent RF, no. 2618644 C, 2017.
RkJQdWJsaXNoZXIy MTk0ODM1