Effect of die inlet geometry on extrusion of clover sections through curved dies: Upper bound analysis and experimental verification
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The effect of die inlet and transition geometry on the extrusion loads and material flow for extrusion of clover sections were investigated and presented both theoretically and experimentally. For this purpose, four different die geometries including straight tapered and cosine transition profile and each of them having round and clover inlet geometries were chosen. In the experimental study, commercially pure lead was used because of its hot forming characteristic at room temperature. A newly kinematical admissible velocity field to analyze different profiles of extrusion dies of clover section from round bars was proposed by upper bound analysis. It is clear that the extrusion loads obtained from the theoretical analysis for various die inlet-die transition geometry combinations are in good agreement with the experimental results. Axis deviations of the parts which define the dimensional quality of the products were also investigated.
Açıklama
Anahtar Kelimeler
Extrusion, Clover Section, Upper Bound, Optimal Die Profile, 3-Dimensional Extrusion, Cold-Extrusion, Axisymmetrical Extrusion, Rod Extrusion, Profile, Aluminum, Design, Hot
Kaynak
Transactions Of Nonferrous Metals Society Of China
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
23
Sayı
4
