Creation of progressive hole processing processes based on the study of contact phenomena during deforming broaching and finishing antifriction non-abrasive treatment in various technological environments

  • Ya.B. Nemyrovskyi Central Ukrainian National Technical University
  • I.V. Shepelenko Central Ukrainian National Technical University
  • E.K. Posviatenko National Transport University
  • M.I. Chernovol Central Ukrainian National Technical University
  • F.Y. Zlatopolskiy Central Ukrainian National Technical University
Keywords: deforming broaching, finishing antifriction non-abrasive treatment, technological environment, solid lubricants, liquid lubricants, contact phenomena, roughness, hardening, quality of the processed surface

Abstract

This work is devoted to the creation of progressive technological processes for processing holes. The relevance of studying this issue is substantiated, technological environments (TE) used in these operations are listed. The purpose of the work performed is to study the influence of TE on contact phenomena and quality parameters of the treated surface during deformation broaching (DB) and finishing antifriction non-abrasive processing (FANT) and the creation on this basis of new technological processes to obtain parts with improved performance. New methods have been developed for studying contact interaction in the case of DB using solid lubricants, as well as for modeling the FANT process. The conditions for the use of liquid lubricants in the DB are described. It has been established that, when them applied, the altitudinal roughness parameters decrease and the surface layer hardens to a considerable depth. It is shown that the use of solid lubricants in DB is mandatory when processing products from hard-to-work materials and alloys. When them applied, significant plastic deformations of the hole can be made. In this case, the surface layer of the workpiece is little different from the original. The change in the altitude parameters of the rough layer, as well as contact pressures using solid lubricants, was studied. Peculiarities of contact phenomena in the case of DB using solid lubricants are revealed. For this case, a functional relationship has been established between the altitude parameters of roughness and the relative contact pressure. An analytical dependence is proposed for their calculation. The boundary conditions for its application are determined. Formation FANT also occurs when using the TE. It was established that solid lubricants during FANT perform a dual function, namely, technological, like solid lubricant during processing, and operational - improve the quality parameters of the processed parts. The combination of DB and FANT operations allows us to develop a new technological process for processing holes of parts such as bushings and sleeves. This process consists in the use of DB as a roughing and finishing operations, and FANT as a finishing operation, which allows to improve the quality indicators of the machined part

References

1. Rosenberg A.M., Rosenberg O.A., Posvyatenko E.K. et al. (1978). Calculation and design of carbide deforming broaches and broaching process. Academy of Sciences of the Ukrainian SSR, ISM, Kiev, Ukraine: Nauk. dumka, p. 256. [in Russian].
2. Shepelenko I. (2020). The study of surface roughness in the process of finishing anti-friction non-abrasive treatment. Problems of Tribology, V. 25, 1/95, рр. 34−40. [in English]. https://doi.org/10.31891/2079-1372-2020-95-1-34-40.
3. Rosenberg A.M., Rosenberg O.A., Gritsenko E.I. et al. (1977). The quality of the surface treated by deforming broaching. Kyiv, Ukraine: Nauk. dumka, p. 188. [in Russian].
4. Shepelenko I.V., Posviatenko E.K., Cherkun V.V. (2019). The mechanism of formation of anti-friction coatings by employing friction-mechanical method. Problems of Tribology, №1, рр. 35−39. [English]. https://doi.org/10.31891/2079-1372-2019-91-1-35-39.
5. Rosenberg O.A., Pashchenko E.A., Sheikin S.E. et al. (2007). On the selection of technological lubricants for deforming broaching of parts made of titanium alloys. Technological systems, vol. 2 (38), pp. 27–32. [in Russian].
6. Rosenberg A.M. and Rosenberg O.A. (1990). Mechanics of plastic deformation in cutting and deformation broaching processes, P.R. Rodin., Ed. Kiev, Ukraine: Nauk. dumka, p. 320. [in Russian].
7. Nemirovsky Ya.B., Posyavtenko E.K., Rostotsky I.Yu. et al. (2019). Features of contact phenomena during deformation broaching using solid lubricants. News of the National Technical University "KhPI". Ser.: Technologies in mechanical engineering: collection of scientific works. Kharkiv, Ukraine: NTU "KhPI", vol. 19 (1344), pp. 61–68. [in Russian]. DOI: 10.20998 / 2079-004x.2019.1.011.
8. Balaganskaya E.A., Golodenko B.A., Nemirovsky Ya.B. et al. (2001). Mathematical modeling of deforming broaching process. Ministry of Education of the Russian Federation, Voronezh state. technol. Acad, Voronezh, Russia: Voronezh state. technol. Acad., p. 194. [in Russian].
9. Tsekhanov Yu.A. and Sheikin S.E. (2001). The mechanics of forming blanks during deformation broaching. Ministry of Education of the Russian Federation, Voronezh state. technol. Acad, Voronezh, Russia: Voronezh state. technol. Acad., p. 200. [in Russian].
10. Tsekhanov Yu.A., Rosenberg O.A. and Del G.D. (1976). Stress state during deformation broaching of a thick-walled pipe. University proceedings: Mechanical engineering, no. 5, pp. 153–156. [in Russian].
11. Nemirovsky Ya.B., Tsekhanov Yu.A. and Balaganskaya E.A. (2005). Investigation of the change in the dimensions of hollow axisymmetric blanks when they are expanded by deforming broaching. Forging and stamping. Processing of materials by pressure, no. 2, pp. 12–15. [in Russian].
12. Shepelenko I., Tsekhanov Y., Nemyrovskyi Y., Posviatenko E. (2020). Power Parameters of Micro-cutting During Finishing Anti-friction Non-abrasive Treatment. In: Karabegović I. (eds) New Technologies, Development and Application III. NT 2020. Lecture Notes in Networks and Systems, vol 128. Springer, Cham, рр. 194−201. [in English]. https://doi.org/10.1007/978-3-030-46817-0_22.
13. Shepelenko I. (2021). Technological factors influence on the antifriction coatings quality. Problems of Tribology, 26(2/100), pp.50−57. https://doi.org/https://doi.org/10.31891/2079-1372-2021-100-2-50-57.
14. Shepelenko I., Tsekhanov Y., Nemyrovskyi Y., Posviatenko E. (2020). Improving the Efficiency of Antifriction Coatings by Means of Finishing the Antifriction Non-abrasive Treatment. In: Tonkonogyi V. et al. (eds) Advanced Manufacturing Processes. InterPartner 2019. Lecture Notes in Mechanical Engineering, Springer, Cham, рр. 289−298. [in English]. https://doi.org/10.1007/978-3-030-40724-7_30.
Published
2022-03-27
How to Cite
Nemyrovskyi, Y., Shepelenko, I., Posviatenko, E., Chernovol, M., & Zlatopolskiy, F. (2022). Creation of progressive hole processing processes based on the study of contact phenomena during deforming broaching and finishing antifriction non-abrasive treatment in various technological environments. Problems of Tribology, 27(1/103), 14-25. https://doi.org/https://doi.org/10.31891/2079-1372-2022-103-1-14-25
Section
Articles