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 članak: 10 od 67
 povratak na rezultate
2018, vol. 16, br. 1, str. 5-10
Mathematical modeling of vibroburnishing of the hole of cylinder
(naslov ne postoji na srpskom)
aS. Seifullin Kazakh AgroTechnical University, Astana, Kazakhstan
bKaraganda State Technical University, Karaganda, Kazakhstan

Ključne reči: tight; surfaces; property; processing; machining; layers; holes; cylinder
Sažetak
(ne postoji na srpskom)
The authors obtained dependencies of the surface layer properties after machinig cylinder holes by vibroburnishing. The properties of the surface layer are changed from a variety of vibroburnishing factors. Surface layer quality graphics of the machining parameters are obtained by mathematical modeling using formulas derived empirically. During the processing of experimental data, the authors of the articles identified optimal processing regimes in which parameters of the quality of the surface layer of the billet can be specified. Thus, vibroburnishing is better to make machining on the mode: m = 16,5 mm, i = 1,7 mm, α = 7,5 °, Ay = 160 J, ƒ = 20 Hz. It was found that the greater vibroburnishing tightness is, the greater the value of size of the cold-hardening layer is. Rougher surface will always have bigger tightness of burnishing, i.e. the purer surface is, the lower the value of tightness of a vibroburnishing must be. However, in the process of a vibrational burnishing of holes there is a so-called critical point, roughness of a surface decreases and the surface layer of metal is strengthened before reaching this point, and after reaching it there is a phenomenon of a re-cold-hardening and quality of a surface decreases.
 Reference Andersson, Ö. (2012) Experiment!. Chichester, UK: Wiley Babishev, A.P., Ryabchi, Y., Hamkada, H. (1998) Vibratory (vibration) shaving processing of detailers in conditions of remain productions. u: 5 the International Conference on Deburring and Surface Finishing, California, Sept. San Francisco Korzynski, M., Lubas, J. (2013) Bushing texturing by burnishing. u: Nonconventional finishing technologies, Warsaw: Polish Scientific Publishers PWN Nagîţ, G., Slătineanu, L., Dodun, O., Coteaţă, M., Beşliu, I., Merticaru, V. (2017) Surface roughness at vibroburnishing. AIP Conference Proceedings, str. 050011 Skvortsov, V.F., Arlyapov, A.Y. (2005) Dorning of deep small diameter holes. Tomsk: TPU Publishing, P. 92