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Calculation and investigation of the stress-strain state of a nitrided gear wheel
https://doi.org/10.22349/1994-6716-2022-109-1-16-25
Abstract
The article presents an analysis of the stress-strain state of the nitrided gear design using the SolidWorks Simulation and APM WinMachine (FEM) programs. Models, methods and examples of calculations are given. As a result of nitriding, the surface hardness of the product increases, the safety factor increases. The experiment proved that the optimal temperature for the formation of a nitrided layer with a hardness of 11,740– 12,003 MPa for corrosion-resistant heat-resistant steel grade 12Kh18N9T was 570–590°C with a nitriding time of 48 hours. It is shown that after nitriding, the steel under study has a homogeneous structure with clearly defined transition layers, the average thickness of the nitrided layer is 60–90 microns. The stress-strain state of the product before and after nitriding, which determines the internal stresses and deformation of the wheel tooth, shows that the static characteristics are approximately equal. However, a wheel hardened by nitriding has a higher hardness, a greater safety margin and it is less prone to deformation under high loads
About the Authors
N. I. Kitaev
Yuri Gagarin State Technical University of Saratov
Russian Federation
Russian Federation
77 Politekhnicheskaya St, Saratov, 410054
S. Ya. Pichkhidze
Yuri Gagarin State Technical University of Saratov
Russian Federation
Russian Federation
Dr. Sc. (Eng)
77 Politekhnicheskaya St, Saratov, 410054
References
1. Guseynov, A.G., Povyshenie rabotosposobnosti detaley mashin i apparatury putem vosstanov-leniya i uprochneniya diffuzionnoy metallizatsiey [Improving the performance of machine parts and equipment by restoring and hardening by diffusion metallization]: Abstract for the Dissertation of the degree of Doctor of Engineering Sciences, Moscow: AzTU, MGSU, 2002.
2. Remont dorozhnykh mashin, avtomobiley i traktorov [Repair of road vehicles, cars and tractors]: textbook, Zorin V.A. (Ed.), Moscow: Academia, 2016.
3. Kobeleva, K.V., Tuktamyshev, V.R., Obzor metodov povysheniya dolgovechnosti aviat-sionnykh zubatykh peredach [Review of methods for increasing the durability of aviation gear gears], Aero-kosmicheskaya tekhnika: PNRPU Mechanics Bulletin (Perm National Research Polytechnic University), 2017, No 50. DOI: 10.15593/2224-9982/2017.50.12.
4. Staroselsky, A.A., Garkunov, D.N., Dolgovechnost trushchikhsya detaley mashin [The durability of the friction of machine parts]: production and practical publication, Moscow: Mashinostroenie, 1967.
5. Lakhtin, Yu.M., Arzamasov, B.N., Khimiko-termicheskaya obrabotka metallov [Chemi-cal-heat treatment of metals]: a textbook for universities, Moscow: Metallurgiya, 1985.
6. Sulima, A.M., Solow, V.A., Yagodkin, Y.D., Poverkhnostny sloy i ekspluatatsionnye svoystva detaley mashin [Surface layer and the performance properties of machine parts], Moscow: Mashino-stroenie, 1988.
7. Kitaev, N.I., Kostin K.B., Pichkhidze, S.Ya., Uprochnenie vysokonagruzhennogo zubchatogo kolesa [Hardening of heavily loaded gears], Kachestvo produktsii: kontrol, upravlenie, povyshenie, planirovanie: Collection of materials of the 7th International Youth Scientific and Practical Conference, Kursk: South State University, 2020.
8. Markova, O.A., Prikladnaya mekhanika. Detali mashin [Applied Mechanics. Machine parts]: textbook, Nizhnekamsk: Institute of Chemical Technology, 2013.
9. Pegashkin, V.F., Obrabotka zubchatykh koles [Gear wheel processing]: textbook, Nizhny Ta-gil: NTI (branch of the UrFU), 2016.
10. Kostin, K.B., Gorshkov, N.V., Vikulova, M.A., Lukyanova, V.O., Pich-k hid ze, S.Ya., Issledovanie poverkhnosti i sostava stali marki 12Kh18N10T s raznymi tipami obrabotki [Investigation of the surface and composition of steel grade 12Kh18N10T with different types of processing], Collection of materials XXVIII MNPC, 31.07.2017, Samara: SIC "L-Journal", 2017.
11. Bo risov , Yu .S., Viku lov a , M.A., Kitaev , N.I., Pichkh id ze, S.Ya., Analiz voz-mozhnosti uprochneniya mikrokhirurgicheskikh oftalmologicheskikh nozhnits [Analysis of the possibility of strengthening microsurgical ophthalmic scissors], Tambov: Scientific Almanac, 2020,. No 7/1(69), pp. 153– 156.
12. Bibikov, P.S., Vliyanie gazo-termotsiklicheskikh protsessov azotirovaniya na strukturu i svoyst-va vysokolegirovannykh korrozionnostoykikh staley aviatsionnogo naznacheniya [The influence of gas-thermocyclic nitriding processes on the structure and properties of high-alloy corrosion-resistant steels for aviation purposes]: Abstract for the Dissertation of the degree of Cand. of Engineering Sciences, Moscow: MEI (Moscow Power Engineering Institute), 2021.
13. Kitaev, N.I., Pichkhidze, S.Ya., Issledovanie prochnostnykh kharakteristik azotirovanno-go zubchatogo kolesa [Investigation of the strength characteristics of a nitrided gear wheel], Materialovedenie, 2021, No 8, pp. 3–8.
Review
For citations:
Kitaev N.I., Pichkhidze S.Ya. Calculation and investigation of the stress-strain state of a nitrided gear wheel. Voprosy Materialovedeniya. 2022;(1(109)):16-25. (In Russ.) https://doi.org/10.22349/1994-6716-2022-109-1-16-25
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