Abstract
This paper focuses on a novel Nakajima test for characterizing the formability of additively deposited materials without extracting sheet blanks. Material is deposited by wire-arc additive manufacturing in the form of ‘Π-shaped’ vertical walls, and the testing regions are then machined to the desired thickness and shapes for subsequent deformation with a hemispherical punch in a press. Digital image correlation is used to obtain the strain loading paths of the deposited material up to failure. The novel test eliminates the need for the special-purpose tool setup of conventional Nakajima tests, simplifying the overall procedure and reducing costs.
Original language | English |
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Title of host publication | Materials Research Proceedings |
Editors | G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P. Martins, M. Merklein, F. Micari |
Volume | 52 |
Publisher | Materials Research Forum LLC |
Publication date | 2025 |
Pages | 242-249 |
ISBN (Print) | 978-1-64490-354-4 |
DOIs | |
Publication status | Published - 2025 |
Event | Sheet Metal 2025: 21th International Conference on Sheet Metal - Paderborn University, Paderborn, Germany Duration: 1 Apr 2025 → 3 Apr 2025 |
Conference
Conference | Sheet Metal 2025 |
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Location | Paderborn University |
Country/Territory | Germany |
City | Paderborn |
Period | 01/04/2025 → 03/04/2025 |
Keywords
- Additive Manufacturing
- Forming
- Nakajima Test