Increased productivity in hot aluminum extrusion by using extrusion dies with inner cooling channels manufactured by rapid tooling
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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Material Forming ESAFORM 2014: 17th Conference of the European Scientific Association on Material Forming. Hrsg. / Jari Larkiola. Band 611-612 Trans Tech Publications, 2014. S. 981-988 (Key Engineering Materials; Band 611-612).
Publikation: Beiträge in Sammelwerken › Aufsätze in Konferenzbänden › Forschung › begutachtet
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TY - CHAP
T1 - Increased productivity in hot aluminum extrusion by using extrusion dies with inner cooling channels manufactured by rapid tooling
AU - Hölker, Ramona
AU - Haase, Matthias
AU - Ben Khalifa, Noomane
AU - Tekkaya, A. Erman
N1 - Conference code: 17
PY - 2014
Y1 - 2014
N2 - The influence of local inner die cooling on the heat balance in hot aluminum extrusion was investigated. For the manufacturing of the die with cooling channels close to the forming zone, the layer-laminated manufacturing method was applied. The new tooling technology was applied in order to decrease the profile's exit temperature and to avoid thermally induced surface defects with the aim to raise the productivity in hot aluminum extrusion processes. Numerical and experimental investigations revealed that, while maintaining the exit temperature of the extrudate, a distinct increase of the production speed up to 300 % can be realized, while the extrusion force increases only slightly. An effect on the profiles microstructure was also detected. By applying die cooling, grain coarsening can be significantly limited or even be avoided.
AB - The influence of local inner die cooling on the heat balance in hot aluminum extrusion was investigated. For the manufacturing of the die with cooling channels close to the forming zone, the layer-laminated manufacturing method was applied. The new tooling technology was applied in order to decrease the profile's exit temperature and to avoid thermally induced surface defects with the aim to raise the productivity in hot aluminum extrusion processes. Numerical and experimental investigations revealed that, while maintaining the exit temperature of the extrudate, a distinct increase of the production speed up to 300 % can be realized, while the extrusion force increases only slightly. An effect on the profiles microstructure was also detected. By applying die cooling, grain coarsening can be significantly limited or even be avoided.
KW - Die cooling
KW - Hot aluminum extrusion
KW - Productivity
KW - Rapid tooling
KW - Engineering
UR - http://www.scopus.com/inward/record.url?scp=84902602991&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.611-612.981
DO - 10.4028/www.scientific.net/KEM.611-612.981
M3 - Article in conference proceedings
AN - SCOPUS:84902602991
SN - 9783038351061
VL - 611-612
T3 - Key Engineering Materials
SP - 981
EP - 988
BT - Material Forming ESAFORM 2014
A2 - Larkiola, Jari
PB - Trans Tech Publications
T2 - 17th European Scientific Association on Material Forming - ESAFORM 2014
Y2 - 7 May 2014 through 9 May 2014
ER -