Comparison of different forming methods on deep drawing and springback behavior of high-strength aluminum alloys

Rigas N, Schmid H, Merklein M (2021)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2021

Journal

IOP Conference Series: Materials Science and Engineering IOP Publishing: Conference Series

Publisher: IOP PUBLISHING LTD

City/Town: BRISTOL

Conference Proceedings Title: INTERNATIONAL DEEP-DRAWING RESEARCH GROUP CONFERENCE (IDDRG 2021)

Event location: ELECTR NETWORK

DOI: 10.1088/1757-899X/1157/1/012048

Abstract

High-strength aluminum alloys of the 7XXX series have a high potential for safety and crash-relevant components due to their advantageous density-to-strength ratio. Currently, the use of these alloys is limited because of the low formability at room temperature. By using thermal supported forming strategies, failure-free deep drawing is possible for these materials. At present, several thermal-assisted forming processes exist, but so far there is no comparison between these forming operations. For this purpose, this study compares the deep drawing behavior of the alloy AA7075 by using different thermally-assisted forming operations. Aim of this work is to enhance the understanding and comparability between different thermally-assisted forming processes for high-strength aluminum alloys. First, a thermal simulator is used to investigate the mechanical material behavior according to different temperature-time curves by using uniaxial tensile tests. Subsequently, the formability and springback behavior is determined numerically and experimentally in a model test. Finally, for one thermally assisted forming method, the experiments are scaled up to a real size process with drawbeads to validate the transferability. This study can help to improve the scientific knowledge for the use of these materials in future.

Authors with CRIS profile

Nikolaos Rigas Institute of Manufacturing Technology (LFT) Harald Schmid Institute of Manufacturing Technology (LFT) Marion Merklein Institute of Manufacturing Technology (LFT)

Related research project(s)

Analysis of the influence of tribological properties on the deep drawing process of sheet metals after passing a drawbead Nov. 1, 2018 - July 31, 2021

How to cite

APA:

Rigas, N., Schmid, H., & Merklein, M. (2021). Comparison of different forming methods on deep drawing and springback behavior of high-strength aluminum alloys. In INTERNATIONAL DEEP-DRAWING RESEARCH GROUP CONFERENCE (IDDRG 2021). ELECTR NETWORK: BRISTOL: IOP PUBLISHING LTD.

MLA:

Rigas, Nikolaos, Harald Schmid, and Marion Merklein. "Comparison of different forming methods on deep drawing and springback behavior of high-strength aluminum alloys." Proceedings of the 40th International Deep-Drawing Research Group Conference (IDDRG), ELECTR NETWORK BRISTOL: IOP PUBLISHING LTD, 2021.

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