An Experimental Study: Improved Electrohydraulic Forming Efficiency through Wire-Free Discharge
| dc.contributor.author | Jang, Y. H. | |
| dc.contributor.author | Kim, J. | |
| dc.date.accessioned | 2025-09-16T17:22:39Z | |
| dc.date.available | 2025-09-16T17:22:39Z | |
| dc.date.issued | 2025-08-26 | |
| dc.description.abstract | This experimental research proposes improved electrohydraulic forming (EHF) methods to overcome the limitations of traditional high-speed forming and deep-drawing processes. EHF uses a working fluid to generate forming force, which lasts longer than in electromagnetic or explosive forming, allowing precise shape control. However, conventional EHF requires fastening wires and draining/refilling the working fluid for each experiment, resulting in long preparation times and inconsistent forming due to variation in wire position. To address these issues, two new methods ‘wire-cross EHF’ and ‘wire-free EHF’ were introduced and tested using a free-bulging die and 0.5 t STS430 specimens. Forming distribution was analysed by comparing forming force, forming height, and preparation time. The wire-free EHF showed lower initial forming force but achieved comparable forming height through consecutive experiments. It also demonstrated high consistency and reduced total experiment time by 4.72 times compared to the conventional EHF, which suffered from increased wire length during twisting, leading to variations in forming height and forming distribution. Overall, the wire-free EHF proved most effective in achieving consistent forming results with significantly reduced preparation time, making it a promising approach for efficient EHF process. | en |
| dc.identifier.uri | http://hdl.handle.net/2003/43924 | |
| dc.identifier.uri | http://dx.doi.org/10.17877/DE290R-25692 | |
| dc.language.iso | en | |
| dc.relation.ispartof | 10th International Conference on High Speed Forming | en |
| dc.subject | Free forming | en |
| dc.subject | Electrode | en |
| dc.subject | Hydroforming | en |
| dc.subject.ddc | 620 | |
| dc.subject.ddc | 670 | |
| dc.subject.rswk | Hydroumformen | |
| dc.subject.rswk | Elektrode | |
| dc.subject.rswk | Experiment | |
| dc.title | An Experimental Study: Improved Electrohydraulic Forming Efficiency through Wire-Free Discharge | en |
| dc.type | Text | |
| dc.type.publicationtype | ConferencePaper | |
| dcterms.accessRights | open access | |
| eldorado.dnb.deposit | true | |
| eldorado.secondarypublication | false |