Application of Avinit vacuum plasma technologies Avinit to the manufacture of high-precision full-size gears
Keywords:development of Avinit duplex technologies; properties of the nitrided layer; coating Avinit characteristics; bench tests of high-precision gears manufactured using Avinit duplex technology
Avinit duplex technologies have been developed, combining Avinit N plasma nitriding of finished high-precision parts with subsequent application of Avinit superhard antifriction coatings in a single technological process
Due to the absence of a brittle layer on the nitrided surface after precision nitriding, the preservation of the original geometric dimensions that do not require further mechanical refinement, and the compatibility of the processes of plasma precision nitriding of Avinit N and the vacuum plasma deposition of functional coatings Avinit C, duplex technologies allow the deposition of strong adhered, high-quality coatings.
The effect of the duplex process on the dimensions of parts during plasma nitriding of high-precision gears and the application of Avinit C functional coatings was investigated, the properties of the nitrided layer and the parameters of Avinit coatings were studied.
Plasma precision technology Avinit N allows nitriding of finished parts without changing dimensions, including gears of 4 degrees of accuracy. Avinit N nitriding time is 2 ... 4 times less than with gas nitriding.
The coating of Avinit C310 parts increases the microhardness of the surfaces of the parts and reduces the coefficient of friction, while it has sufficient adhesion to the working surfaces of the gear teeth and bearing raceways.
Manufacturing of high-precision gears with accuracy grade 4 using Avinit duplex technologies was carried out.
Analysis of the results shows that, within the measurement accuracy, no changes in the profiles of the teeth, their location on the ring gear, as well as the location of the gear ring relative to the measuring bases are observed.
Plasma nitriding makes it possible to reduce the nitriding time by more than two times compared to gas nitriding, while the thickness of the layer of the brittle phase with the maximum surface hardness is ensured within the specified values to ensure the necessary indicators of contact and bending long-term strength in the manufacture of gears according to the degree of accuracy 4 without grinding after nitriding.
Measurements of the ring gear after nitriding and coating showed that there were no changes in the geometry of the gear processed by duplex technology. Avinit C310 anti-friction coating 1.5 microns thick does not distort the geometry of the tooth profiles. All parameters of the ring gear manufactured using the Avinit duplex technology correspond to accuracy grade 4 in accordance with the requirements of technical documentation.
The gears manufactured using the Avinit duplex technology were tested as part of the AI-450M engine reducer at the Ivchenko-Progress hydraulic brake stand according to the program of equivalent cyclic tests. A pair of experimental gears were installed in the engine reducer instead of the serial wheels of the second stage of the reducer. The total test time of the wheels was 26 hours. After testing, no damage to the gear, including the Avinit coating, was found. Antifriction coating Avinit C310 with a thickness of 1.5 microns does not distort the geometry of the tooth profiles during testing as part of the AI-450M engine reducer. Measurement of the parameters of the teeth showed a complete absence of wear.
Tekhnologiya proizvodstva i metody obespecheniya kachestva zubchatykh koles i peredach. SPb: Professiya, 2007.
Yu.M. Lakhtin et al., Teoriya i tekhnologiya azotirovaniya, Moscow: Metallurgiya, 1991.
B.N. Arzamasov et al., Ionnaya khimiko-termicheskaya obrabotka splavov, Moscow, MGU im. Baumana, 1999.
Yu.S. Eliseev et al., Proizvodstvo zubchatykh koles gazoturbinnykh dvigatelei, Moscow: Vyssh. shkola, 2001.
Antifriktsionnye pokrytiya rabochikh poverkhnostei shesteren i podshipnikov. Tekhnicheskii otchet, T/o No. 4/2007-CESAR, GP “Ivchenko-Progress”, Zaporozh'e, 2007.
Yu.S. Eliseev, V.V. Krymov, “Chto nado dlya sozdaniya dvigatelya novogo pokoleniya”, Dvigatel', No. 3 (73), pp. 2–5, 2007.
I.F. Kravchenko et al., “Eksperimental'nye i teoreticheskie rezul'taty issledovaniya aviatsionnykh zubchatykh peredach dlya dvigatelei pyatogo i shestogo pokolenii”, Aviatsionno-kosmicheskaya tekhnika i tekhnologiya, No. 8 (55), pp. 129–134, 2008.
O.V. Sagalovich and V.V. Sagalovich, “Sposіb іonno-plazmovogo pretsizіinogo azotuvannya poverkhon' stalei ta splavіv Avinit N”, No.84664, 25.10.13.
A.V. Sagalovich and V.V. Sagalovich, “Sposіb іonno-plazmovogo pretsizіinogo azotuvannya poverkhon' stalei ta splavіv Avinit N”, No.107408, 28.12.14.
A.V. Sagalovich, V.V. Popov and V.V. Sagalovich, “Plazmove pretsizіine azotuvannya Avinit N”, Tekhnologicheskie sistemy, No. 4(89), pp. 16–26, 2019.
Issledovanie metodov uprochneniya razrabotki NTTs “Nanotekhnologiya”, Tekhnicheskaya spravka No. 106/2015. GP “Ivchenko-Progress”, Zaporozh'e, 2015.
Issledovanie plazmennogo azotirovaniya shesteren. Tekhnicheskaya spravka, No. 92/2015. GP “Ivchenko-Progress”, Zaporozh'e, 2015.
A.V.Sagalovich et al., “Porіvnyal'nii analіz vtomnoї kontaktnoї mіtsnostі poverkhon', zmіtsnenikh tsementuvannyam ta іonnoplazmovim azotuvannyam Avіnіt N”, Vіsnik dvigunobuduvannya. No. 1, pp. 33–45, 2020.
A.V. Sagalovich et al., “Eksperimental'nye issledovaniya pokrytii tipa Avinit, Aviatsionno-kosmicheskaya tekhnika i tekhnologiya. Tekhnologiya proizvodstva letatel'nykh apparatov”, T. 1, pp. 5–15, 2011.
A. Sagalovych et al., “Experimental research of multicomponent multilayer ion-plasma Avinit coatings”, Fizicheskaya inzheneriya poverkhnosti, T. 10, No. 4, pp. 229–236, 2012.
A.Sagalovych et al., “Experimental research of multicomponent multilayer ion-plasma Avinit coatings”, Fizicheskaya inzheneriya poverkhnosti, T. 11, No. 1, pp 4–17, 2013.
O.V. Sagalovich et al., “Znosostіike antifriktsіine pokrittya”, No. 109053, 10.07.15.
A.V. Sagalovich et al., “Bagatosharove, znosostіike pokrittya”, No. 108279, 10.04.15.
V.Popov, A.Sagalovych and V.Sagalovych, Improving the performance, reliability and service life of aviation technology
products based on the innovative vacuum-plasma nanotechnologies for application of avinit functional coatings and sur faces modification: monograph. Tallinn, Scientific Route OÜ Publ., 2020. DOI: https://doi.org/10.21303/978-9916-9516-1-3
O.V. Sagalovich et al., “Vacuum-plasma protective coating for turbines blades”, Mechanics and Advanced Technologies, No. 1(88), pp. 124–134 2020. http://doi.org/10.20535/2521-1943.2020.88.204675
Ispytaniya pokrytiya Avinit S310 na dvigatele AI-450M. Tekhnicheskaya spravka, No. 488/2017, GP “Ivchenko-Progress”, Zaporozh'e, 2017.
A.V. Kononykhin et al., “Izuchenie tribologicheskikh kharakteristik mnogosloinykh Mo-S pokrytii, poluchennykh gazofaznym metodom s ispol'zovaniem metallorganicheskikh soedinenii”, Vestnik KhNADU, V. 54, pp. 44–51, 2011.
A.V. Sagalovich et al., “Nanesenie pokrytii na slozhnoprofil'nye pretsizionnye poverkhnosti gazofaznym metodom (CVD)”, Fizicheskaya inzheneriya poverkhnosti, T. 9, No. 3, pp. 229–236, 2011.
A.V. Sagalovich et al., “Izuchenie tribologicheskikh kharakteristik mnogosloinykh Mo-S pokrytii, poluchennykh gazofa-znym metodom s ispol'zovaniem metallorganicheskikh soedinenii”, Tekhnologicheskie sistemy, No. 1(58), pp. 46–54, 2012.
A.Sagalovych, V. Sagalovych, “Mo-C multilayered CVD coatings”, Tribology in industry, V. 35, No. 4, pp. 219–227, 2013.
A. Sagalovych et al., “The Antifrictional Coatings on the Molybdenum Base”, Proc. 15th Intern. Conf. on Tribology SERBIATRIB ’17, Kragujevac, Serbia, 2017.
A. Sagalovych et al., “Development of the chemical vapor deposition process for applying molybdenum coatings on the components in assembly and engine construction”, Skhіdno-Evropeis'kii zhurnal peredovikh tekhnologіi (EEJET), No. 2/12(104), pp. 6–15, 2020. https://doi.org/10.15587/1729-4061.2020.201540
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