Details
| Original language | English |
|---|---|
| Title of host publication | Lecture Notes in Production Engineering |
| Publisher | Springer Nature |
| Pages | 345-355 |
| Number of pages | 11 |
| ISBN (electronic) | 978-3-031-47394-4 |
| ISBN (print) | 978-3-031-47393-7 |
| Publication status | Published - 2024 |
Publication series
| Name | Lecture Notes in Production Engineering |
|---|---|
| Volume | Part F1764 |
| ISSN (Print) | 2194-0525 |
| ISSN (electronic) | 2194-0533 |
Abstract
7xxx series aluminium alloys have a high potential for lightweight constructions in automotive applications due to lower weight, similar strength and higher recyclability compared to steel. However, formability of such alloys at room temperature is relatively low. Elevated temperatures are one way of improving formability, e.g. by semi-hot forming. This work is therefore concerned with the analysis of strain rate and temperature dependent behaviour of AA7075 in T6 state. For this, experimental characterisation has been performed using uniaxial and shear tension, layer compression, plane strain compression and Nakajima tests over temperatures of 20 to 275 ℃ and strain rates of 0.01 to 1 s−1. The experimental results are used to calibrate and build a temperature and strain rate dependent plasticity model using Hockett-Sherby hardening law. For failure modelling, a temperature dependent forming limit curve was calculated. Additionally, various yield criteria were applied to predict a temperature dependent yield locus for a constant strain rate.
Keywords
- aluminium alloy, semi-hot forming, sheet forming, strain rate, temperature dependency
ASJC Scopus subject areas
- Engineering(all)
- Industrial and Manufacturing Engineering
- Economics, Econometrics and Finance(all)
- Economics, Econometrics and Finance (miscellaneous)
- Engineering(all)
- Safety, Risk, Reliability and Quality
Cite this
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Lecture Notes in Production Engineering. Springer Nature, 2024. p. 345-355 (Lecture Notes in Production Engineering; Vol. Part F1764).
Research output: Chapter in book/report/conference proceeding › Contribution to book/anthology › Research › peer review
}
TY - CHAP
T1 - Analysis of Semi-Hot Forming Behaviour of AA7075 Sheet Metal
AU - Vasquez Ramirez, D.
AU - Wester, H.
AU - Rosenbusch, D.
AU - Behrens, B. A.
N1 - Funding Information: Acknowledgements. The authors thank the funders, Federal Ministry for Economic Affairs and Energy. The funding was organised by German Federation of Industrial Research Associations (AiF) part of a program for Industrial Collective Research (IGF) under grant number 21645N.
PY - 2024
Y1 - 2024
N2 - 7xxx series aluminium alloys have a high potential for lightweight constructions in automotive applications due to lower weight, similar strength and higher recyclability compared to steel. However, formability of such alloys at room temperature is relatively low. Elevated temperatures are one way of improving formability, e.g. by semi-hot forming. This work is therefore concerned with the analysis of strain rate and temperature dependent behaviour of AA7075 in T6 state. For this, experimental characterisation has been performed using uniaxial and shear tension, layer compression, plane strain compression and Nakajima tests over temperatures of 20 to 275 ℃ and strain rates of 0.01 to 1 s−1. The experimental results are used to calibrate and build a temperature and strain rate dependent plasticity model using Hockett-Sherby hardening law. For failure modelling, a temperature dependent forming limit curve was calculated. Additionally, various yield criteria were applied to predict a temperature dependent yield locus for a constant strain rate.
AB - 7xxx series aluminium alloys have a high potential for lightweight constructions in automotive applications due to lower weight, similar strength and higher recyclability compared to steel. However, formability of such alloys at room temperature is relatively low. Elevated temperatures are one way of improving formability, e.g. by semi-hot forming. This work is therefore concerned with the analysis of strain rate and temperature dependent behaviour of AA7075 in T6 state. For this, experimental characterisation has been performed using uniaxial and shear tension, layer compression, plane strain compression and Nakajima tests over temperatures of 20 to 275 ℃ and strain rates of 0.01 to 1 s−1. The experimental results are used to calibrate and build a temperature and strain rate dependent plasticity model using Hockett-Sherby hardening law. For failure modelling, a temperature dependent forming limit curve was calculated. Additionally, various yield criteria were applied to predict a temperature dependent yield locus for a constant strain rate.
KW - aluminium alloy
KW - semi-hot forming
KW - sheet forming
KW - strain rate
KW - temperature dependency
UR - http://www.scopus.com/inward/record.url?scp=85178339570&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-47394-4_34
DO - 10.1007/978-3-031-47394-4_34
M3 - Contribution to book/anthology
AN - SCOPUS:85178339570
SN - 978-3-031-47393-7
T3 - Lecture Notes in Production Engineering
SP - 345
EP - 355
BT - Lecture Notes in Production Engineering
PB - Springer Nature
ER -