An upper bound analysis and determination of the barrelling profile in upsetting
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Natl Inst Science Communication-Niscair
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this work is to investigate the barreling of aluminium cylinders having two different aspect ratios in terms of barrel profiles and required loads. A modified upper bound solution including a dimensionless optimizing parameter for uniaxial upsetting has been developed and the loads calculated thereby have been compared with the results of several experiments conducted. Furthennore, the barrel profile is firstly assumed as a second-order polynomial for the upsetting process and an empirical correlation between the billet dimensions and the barrel profile has been established using experimental data. AA6082 is used as test material. The experiments are carried out on a 150 metric ton capacity hydraulic press. Besides, the bulging profile and effective strain distribution of the billets are obtained with a commercially FEM program called DEFORM 3D.
Açıklama
Anahtar Kelimeler
Barreling Profile, Upper Bound, Upsetting, FEM, Aluminum Solid Cylinders, Frictional Conditions, Cylindrical Billets, Die, Prediction, Extrusion, Flow
Kaynak
Indian Journal Of Engineering And Materials Sciences
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
18
Sayı
6
