Increasing the durability of the gun barrels by strengthening the PPD of their inner

Authors

DOI:

https://doi.org/10.20535/2521-1943.2021.5.3.250163

Keywords:

barrel, , cannon, artillery, barrel bore, material, wear, surface hardening, residual stress, hardening thickness

Abstract

Abstract. The accompanying cannon shots, the chemical action of powder gases and high temperatures actively destroy the surface layer of the barrel bore material. This leads to a violation of the geometry of the barrel bore and, as a consequence, a decrease in the accuracy of the aimed firing of the gun. A description of a fundamentally new technology of hardening by surface plastic deformation of the inner working surface of the bore of large-caliber artillery and tank guns is given. This hardening technology is based on riveting the metal of the barrel bore with deforming bodies with a spherical impact surface, which are mounted on a massive cylindrical hardener. During processing from the electric motor, the cylindrical hardener is given a planetary rolling motion along the processed inner surface of the barrel bore. Simultaneously, the hardener is moved along the geometric axis of the processed gun barrel. The result of this hardening treatment is the formation of residual compressive stresses in the thickness of the bore material and an increase in its surface microhardness. This provides an increase in the resistance of the material of the barrel bores to its burning out, as well as to wear during cannon shots.

 The design of a strengthening device for this treatment has been created. It consists of a cylindrical hardener with deforming bodies, a mechanism for transmitting torque from the motor shaft to the hardener, and a drive motor. During processing, the hardening device is moved along the bore of the gun. Its cylindrical hardener rolls over the inner surface of the barrel to be machined and rivets its material. The ensured thickness of hardening of steel parts is 0.15–0.20 mm. The hardened surface layer of the tool barrel bore material formed during processing has an increased microhardness, due to which it reliably resists the formation of operational microcracks in it. In this case, the compressive stresses formed in the thickness of the hardened metal of the bore of the bore reliably resist the temperature growth of microcracks. This provides an increase in the resistance of the hardened metal of the barrel to operational destruction, thereby increasing the reliability and durability of artillery weapons.

References

  1. Ya. M. Kusyy and V. H. Topilʹnytsʹkyy, "Doslidzhennya yakosti poverkhni vibrozmitsnenykh detaley mashyn", Visnyk Natsionalʹnoho universytetu "Lʹvivsʹka politekhnika", no. 772, pp. 196–201, 2013. Available: https://ena.lpnu.ua/handle/ntb/23545.
  2. V. V. Shyrokov, I. S. Aftanaziv, V. M. Borovetsʹ, A. M. Kuk and Ya. M. Kusyy, "Rozrobka tekhnolohichnoho osnashchennya dlya pokrashchennya ekspluatatsiynykh kharakterystyk detaley naftohazovydobuvnoho obladnannya", in Effektivnost' realizatsii nauchnogo, resursnogo i promyshlennogo potentsiala v sovremennykh usloviyakh: materialy X Promyshlennoy konferentsii s mezhdunarodnym uchastiyem, Slavskoe, Ukraine, 2010, pp. 243–246.
  3. J. М. Kusyi and А. М. Kuk, “Method devised to improve technological reliability of machine parts”, Eastern-European Journal of Enterprise Technologies, vol. 1, no. 7(73), pp. 41–51, 2015. DOI: https://doi.org/10.15587/1729-4061.2015.36336.
  4. Ya. Kusiy and V. Topilnitskiy, "Calculatoions of vibratory-centrifugal strengthening treatment’s dynamics by means of application software", in Book of abstracts XVII Polish-Ukrainian Conference on “CAD in Machinery Design-Implememtation and Educational Problems”, 2009, pp. 25–26.
  5. І. S. Aftanazіv, L. І. Shevchuk and O. І. Strogan, “Increase of durability for torsion shafts and long details by surface plastic deformation”, ScienceRise, vol. 4, no. 2 (21), pp. 37–44, 2016. DOI: https://doi.org/10.15587/2313-8416.2016.67693.
  6. V. S. Kravchuk, A. F. Dashchenko and A. M. Limarenko, "Computer modeling and numerical analysis telescopic boom truck crane", Collection of scientific works of the Odesa State Academy of Technical Regulation and Quality, no. 1(8), pp. 79–82, 2016. DOI: https://doi.org/10.32684/2412-5288-2016-1-8-79-82.
  7. A. V. Mironov and G. V. Redreev, “K voprosu ob uprochnenii poverkhnosti detaley plasticheskim deformirovaniyem”, Vestnik Omskogo gosudarstvennogo agrarnogo universiteta, no. 3(15), pp. 35–38, 2014.
  8. О. Lototska, “Modern finish methods of performance characteristics enhancement of the parts of polygraph machinery by surface plastic deformation and chroming”, Technology and Technique of Typography, no. 2(28), pp. 44–50, 2010. DOI: https://doi.org/10.20535/2077-7264.2(28).2010.56079.
  9. I. S. Aftanaziv and L. I. Shevchuk, Devices for strengthening torsion shafts by surface plastic deformation. Patent of Ukraine UA116265C2, published 26.02.2018.
  10. I. S. Aftanaziv and L. I. Shevchuk, Devices for strengthening surface plastic deformation of internal cylindrical surfaces of long dimensions. Patent of Ukraine UA116268C2, published 26.02.2018.
  11. І. S. Aftanaziv, L. I. Shevchuk, L. R. Strutynska and O. I. Strogan, “Vibrational-centrifugal surface strengthening of drill and casing pipes”, Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 5, pp. 88–97, 2018. DOI: https://doi.org/10.29202/nvngu/2018-5/7.
  12. L. V. Kolomiets, V. F. Orobey and A. M. Lymarenko, “Method of boundary elements in problems of stability of plane bending beams of rectangular section beams”, Metallurgical and Mining Industry, no. 3, pp. 58–65, 2016.
  13. V. Orobej, L. Kolomiets and A. Limarenko, “Boundary element method in problems of plate elements bending of engineering structures”, Metallurgical and Mining Industry, vol. 7, no. 4, pp. 295–302, 2015.
  14. І. S. Aftanazіv, L. I. Shevchuk, O. I. Strohan and L. R. Strutynska, “Increasing durability and robustness of plane wheel hubs by strengthening treatment”, Aerospace technic and technology, vol. 5, no. 5, pp. 47–57, 2018. DOI: https://doi.org/10.32620/aktt.2018.5.08.
  15. A. Kubit, M. Bucior, W. Zielecki and F. Stachowicz, “The impact of heat treatment and shot peening on the fatigue strength of 51CrV4 steel”, Procedia Structural Integrity, vol. 2, pp. 3330–3336, 2016. DOI: https://doi.org/10.1016/j.prostr.2016.06.415.
  16. S. A. Zaides and Ngo Kao Kyong, “Otsenka napryazhennogo sostoyaniya pri stesnennykh usloviyakh lokal'nogo nagruzheniya”, Uprochnyayushchie tekhnologii i pokrytiya, no. 10, pp. 6–9, 2016.
  17. L. Singh, R. A. Khan and M. L. Aggarwal, “Effect of shot peening on hardening and surface roughness of nitrogen austenitic stainless steel International”, Jornal of Engineering Science and Technology, vol. 2, no. 5, pp. 818–826, 2010.
  18. Ya. N. Oteniy, “Formirovaniye ostatochnykh napryazheniy pri obkatyvanii detaley rolikami proizvol'nogo tipa”, Izvestiya vuzov. Mashinostroyeniye, no. 1, pp. 43–52, 2006.
  19. R. M. Akhtam'yanov, "Kontrol' protsessa pnevmodrobestruynogo uprochneniya i tekhnologicheskaya osnastka", Molodoy uchenyy, no. 16 (75), pp. 56–58, 2014.
  20. V. Llaneza and F. J. Belzunce, “Study of the effects produced by shot peening on the surface of quenched and tempered steels: roughness, residual stresses and work hardening”, Applied Surface Science, vol. 356, pp. 475–485, 2015. DOI: https://doi.org/10.1016/j.apsusc.2015.08.110.
  21. E. N. Zyk and V. V. Pleshakov, "Vliyaniye otdelochno-uprochnyayushchey obrabotki drob'yu na prochnostnyye svoystva i kharakteristiki detaley iz vysokoprochnykh staley pri proizvodstve i vosstanovlenii", Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy rayon. Tekhnicheskiye nauki, no. 1 (37), 2016.
  22. A. T. Vielma, V. Llaneza and F. J. Belzunce, “Shot peening intensity optimization to increase the fatigue life of a quenched and tempered structural steel”, Procedia Engineering, vol. 74, pp. 273–278, 2014. DOI: https://doi.org/10.1016/j.proeng.2014.06.261.
  23. M. Śledź, F. Stachowicz and W. Zielecki, “The effect of shot peening on the fatigue strength of steel sheets”, Metallic Materials, vol. 53, no. 2, pp. 91–95, 2015. DOI: https://doi.org/10.4149/km_2015_2_91.
  24. M. V. Pesin, “Nauchnye osnovy modelirovaniya protsessa uprochneniya vpadiny rez'by buril'nykh trub obkatyvaniem rolikom”, Ekspozitsiya Neft' Gaz, no. 5 (30), pp. 68–70, 2013.

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Published

2021-12-27

How to Cite

[1]
I. Aftanaziv, L. . Shevchuk, O. Strohan, and L. Strutynska, “Increasing the durability of the gun barrels by strengthening the PPD of their inner”, Mech. Adv. Technol., vol. 5, no. 3, pp. 314–324, Dec. 2021.

Issue

Vol. 5 No. 3 (2021)

Section

Mechanics

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