Effect of Porthole Design and Welding Chamber Dimensions on Material Flow and Weld Deformability of Extruded Aluminium Profiles
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
Standard
Material Forming ESAFORM 2012. ed. / M. Merklein; H. Hagenah. Vol. 504-506 Trans Tech Publications, 2012. p. 523-528 (Key Engineering Materials; Vol. 504-506).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
Harvard
APA
Vancouver
Bibtex
}
RIS
TY - CHAP
T1 - Effect of Porthole Design and Welding Chamber Dimensions on Material Flow and Weld Deformability of Extruded Aluminium Profiles
AU - Lorenzo, Donati
AU - Ben Khalifa, Noomane
AU - Tomesani, Luca
AU - Tekkaya, A. Erman
N1 - Conference code: 15
PY - 2012
Y1 - 2012
N2 - Aim of the work is to investigate different strategies in balancing material flow during direct extrusion through porthole dies. Two AA6082 hollow profiles were simultaneously extruded by a single die with different portholes extrusion ratio, dissimilar welding chambers and different bearing lengths. A strict process control was realized by measuring thermal conditions in the die by means of 6 thermocouples and on the profiles by a self calibrating pyrometer for aluminum alloy applications. Several billets were extruded at different ram speeds (2 to 7 mm/sec) and the effect of die design on surface quality, profile lengths and thermal field was recorded. The profiles were then sectioned and the position of the seam welds in the profiles identified and compared also with the profiles tip.
AB - Aim of the work is to investigate different strategies in balancing material flow during direct extrusion through porthole dies. Two AA6082 hollow profiles were simultaneously extruded by a single die with different portholes extrusion ratio, dissimilar welding chambers and different bearing lengths. A strict process control was realized by measuring thermal conditions in the die by means of 6 thermocouples and on the profiles by a self calibrating pyrometer for aluminum alloy applications. Several billets were extruded at different ram speeds (2 to 7 mm/sec) and the effect of die design on surface quality, profile lengths and thermal field was recorded. The profiles were then sectioned and the position of the seam welds in the profiles identified and compared also with the profiles tip.
KW - Die Design
KW - Aluminium Extrusion
KW - Welds
KW - AA6082
KW - Engineering
U2 - 10.4028/www.scientific.net/KEM.504-506.523
DO - 10.4028/www.scientific.net/KEM.504-506.523
M3 - Article in conference proceedings
SN - 978-3-03785-366-5
VL - 504-506
T3 - Key Engineering Materials
SP - 523
EP - 528
BT - Material Forming ESAFORM 2012
A2 - Merklein, M.
A2 - Hagenah, H.
PB - Trans Tech Publications
T2 - 15th Conference of the European Scientific Association on Material Forming - ESAFORM 2012
Y2 - 14 March 2012 through 16 March 2012
ER -