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Tehnički vjesnik, Vol.25 No.5 Listopad 2018.

Izvorni znanstveni članak
https://doi.org/10.17559/TV-20170330134807

Cold Radial Extrusion of a Gear-Like Element with Flow Relief Opening

Plavka Skakun ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Robert Lengyel ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Sebastian Baloš ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Dejan Movrin   ORCID icon orcid.org/0000-0001-7812-0713 ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia
Mladomir Milutinović ; University of Novi Sad, Faculty of Technical Sciences, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia

Puni tekst: engleski, pdf (1 MB) str. 1363-1369 preuzimanja: 22* citiraj
APA 6th Edition
Skakun, P., Lengyel, R., Baloš, S., Movrin, D. i Milutinović, M. (2018). Cold Radial Extrusion of a Gear-Like Element with Flow Relief Opening. Tehnički vjesnik, 25 (5), 1363-1369. https://doi.org/10.17559/TV-20170330134807
MLA 8th Edition
Skakun, Plavka, et al. "Cold Radial Extrusion of a Gear-Like Element with Flow Relief Opening." Tehnički vjesnik, vol. 25, br. 5, 2018, str. 1363-1369. https://doi.org/10.17559/TV-20170330134807. Citirano 17.12.2018.
Chicago 17th Edition
Skakun, Plavka, Robert Lengyel, Sebastian Baloš, Dejan Movrin i Mladomir Milutinović. "Cold Radial Extrusion of a Gear-Like Element with Flow Relief Opening." Tehnički vjesnik 25, br. 5 (2018): 1363-1369. https://doi.org/10.17559/TV-20170330134807
Harvard
Skakun, P., et al. (2018). 'Cold Radial Extrusion of a Gear-Like Element with Flow Relief Opening', Tehnički vjesnik, 25(5), str. 1363-1369. doi: https://doi.org/10.17559/TV-20170330134807
Vancouver
Skakun P, Lengyel R, Baloš S, Movrin D, Milutinović M. Cold Radial Extrusion of a Gear-Like Element with Flow Relief Opening. Tehnički vjesnik [Internet]. 2018 [pristupljeno 17.12.2018.];25(5):1363-1369. doi: https://doi.org/10.17559/TV-20170330134807
IEEE
P. Skakun, R. Lengyel, S. Baloš, D. Movrin i M. Milutinović, "Cold Radial Extrusion of a Gear-Like Element with Flow Relief Opening", Tehnički vjesnik, vol.25, br. 5, str. 1363-1369, 2018. [Online]. doi: https://doi.org/10.17559/TV-20170330134807

Sažetak
When divided material flow is enabled during extrusion process, the required forming load is lower compared to a conventional process. The reduction of forming load leads to higher quality of extruded part and longer tool life. One way to achieve divided material flow is the application of a relief opening, either in the billet or in the tool. In this paper, theoretical solution based upon the Upper bound theorem was used to determine the forming load for radial extrusion of a gear-like element with straight parallel flank profile. Two possible positions of relief openings were analysed - in the centre of the billet and in the centre of the punch. Theoretical solution was compared to experimental results. Material of billets was Al 99,5. Comparison between theoretical and experimental values of the forming load showed fairly good agreement. Further development of the proposed theoretical solution should lead to better process description and more accurate value of the forming load.

Ključne riječi
extrusion; gear-like element; relief opening; upper bound

Hrčak ID: 207434

URI
https://hrcak.srce.hr/207434

Posjeta: 46 *