Pregled bibliografske jedinice broj: 601342
FEM analysis of friction coefficient in open die coining process of different grain sizes
FEM analysis of friction coefficient in open die coining process of different grain sizes // Journal for technology of plasticity, 37 (2012), 1; 15-22 (podatak o recenziji nije dostupan, članak, znanstveni)
CROSBI ID: 601342 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
FEM analysis of friction coefficient in open die coining process of different grain sizes
Autori
Keran, Zdenka ; Math, Miljenko ; Piljek, Petar
Izvornik
Journal for technology of plasticity (0354-3870) 37
(2012), 1;
15-22
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
coining process; numerical simulation; friction coefficient
Sažetak
The study concerns the analysis of significant contact friction changes by changing the size of crystal grains in the processes of free axisymmetric workpieces upsetting, initial height of 2 mm. The friction changes result with significant changes in forming force. This phenomenon usually characterizes microforming processes. Using hard experimental data in the creation of numerical FE (finite element) model, a dependence of the changes of contact friction in correlation to the change of the workpiece crystal grain size for three different grain sizes: 39, 47 and 76 μm is presented. It is shown that the friction factor is increased by reducing the size of crystal grains. Physical interpretation of the results is given by theory of Bowden and Tabor.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
120-1201787-1786 - CAM tehnologije i modeliranje u oblikovanju deformiranjem i mikrooblikovanju (Math, Miljenko, MZOS ) ( CroRIS)
Ustanove:
Fakultet strojarstva i brodogradnje, Zagreb
