- Tytuł:
- The Coupled Eulerian-Lagrangian Analysis of the KOBO Extrusion Process
- Autorzy:
-
Wójcik, Marta
Skrzat, Andrzej - Powiązania:
- https://bibliotekanauki.pl/articles/2024076.pdf
- Data publikacji:
- 2021
- Wydawca:
- Stowarzyszenie Inżynierów i Techników Mechaników Polskich
- Tematy:
-
coupled Eulerian-Lagrangian method
KOBO extrusion
metal forming
finite element method
hardening parameters
cyclic loading
metoda sprzężona Eulera-Lagrangiana
wytłaczanie KOBO
obróbka plastyczna
metoda elementów skończonych
parametry hartowania
obciążenie cykliczne - Opis:
- The KOBO extrusion is an unconventional elastic-plastic deformation process in which the phenomenon of chang- ing a path of plastic deformation due to die cyclic oscillations by a given angle and with a given frequency is applied. As the result of the application of the oscillating rotary motion of the die, the reduction of the extrusion force was obtained. The numerical study of the KOBO extrusion of metallic materials was presented in this paper. The three-dimensional coupled Eulerian-Lagrangian (CEL) analysis was applied. The relationship between the extrusion force and the punch displacement during the KOBO process was achieved. The effective plastic strain distribution in the butt was found. The results of the numerical computations were compared with the experimen- tal data. The influence of the material hardening parameters on the cyclic loading phenomena (ratcheting, mean stress relaxation) in terms of the course of the KOBO extrusion was also examined. The proper determination of the material hardening parameters can help to optimize the KOBO process in terms of the reduction the extrusion force and the choice of the amount of die oscillations.
- Źródło:
-
Advances in Science and Technology. Research Journal; 2021, 15, 1; 197-208
2299-8624 - Pojawia się w:
- Advances in Science and Technology. Research Journal
- Dostawca treści:
- Biblioteka Nauki
Artykuł