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Research Journals >
Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.18 [2011] >
IJEMS Vol.18(6) [December 2011] >
| Title: | An upper bound analysis and determination of the barrelling profile in upsetting |
| Authors: | Altinbalik, Tahir
Çan, Yilmaz |
| Keywords: | Barreling Profile
Upper Bound
Upsetting
FEM |
| Issue Date: | Dec-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 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. Furthermore,
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. |
| Page(s): | 416-424 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.18(6) [December 2011]
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