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  4. Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming
 
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March 17, 2023
Conference Paper
Title

Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming

Abstract
The combination of incremental sheet metal forming and high-speed forming offers new possibilities for flexible forming processes in the production of large sheet metal components of increased complexity with relatively low forming energies. In this paper, the general feasibility and process differences between the pulse-driven high-speed forming technologies of electrohydraulic and electromagnetic forming were investigated. An example component made of EN AW 6016 aluminum sheet metal was thus formed incrementally by both processes and the forming result evaluated by an optical 3D measurement system. For this purpose, a forming strategy for electromagnetic incremental forming (EMIF) was developed, tested and adapted to the electrohydraulic incremental forming process (EHIF). The discharge energy, the tool displacement and the pressure field of the forming zone were determined as relevant parameters for the definition of an adequate tool path strategy. It was found that the EHIF process is less affected by larger distances between the tool and the blank, while this is a critical variable for force application to the component during EMIF. On the other hand, the more uniform pressure distribution of the EMIF process is advantageous for forming large steady component areas.
Author(s)
Holzmüller, Maik
Universität Paderborn  
Linnemann, Maik  
Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU  
Homberg, Werner
Psyk, Verena  
Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU  
Kräusel, Verena  
Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU  
Kroos, Janika
Universität Paderborn  
Mainwork
Sheet Metal 2023, 20th International Conference on Sheet Metal  
Conference
International Conference on Sheet Metal 2023  
Open Access
DOI
10.21741/9781644902417-2
10.24406/publica-1552
File(s)
Proof_of_concept_for_incremental_sheet_metal_formi.pdf (2.5 MB)
Rights
CC BY 3.0 (Unported): Creative Commons Attribution
Language
English
Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik IWU  
Keyword(s)
  • Incremental Sheet Forming

  • Aluminium

  • High-Speed Forming

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