In modern lightweight concepts, for example in automotive engineering, structures are increasingly composed of several dissimilar materials. Due to the different material properties of the joining partners, conventional and widely used joining techniques often reach their technological limits when applied in the manufacturing of such multi-material structures. This leads to an increasing demand for appropriate joining technologies, like joining by die-less hydroforming (DHF) for connecting tubular workpieces. The present work introduces an analytical model to determine the achievable joint strength of this connection type. This approach, taking into account the material parameters as well as the groove and tube geometry, is based on a membrane analysis with constant wall thickness. Additionally, bending stresses and friction are considered locally. Besides a fundamental understanding of the load transfer mechanism, this analytic approach allows a reliable joining zone design. To validate the model, experimental investigations using aluminum specimens were performed.
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ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference
June 9–13, 2014
Detroit, Michigan, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-4581-3
PROCEEDINGS PAPER
Analytical Methodology for the Process and Joint Design of Form-Fit Joining by Die-Less Hydroforming Available to Purchase
C. Weddeling,
C. Weddeling
TU Dortmund University, Dortmund, Germany
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S. Gies,
S. Gies
TU Dortmund University, Dortmund, Germany
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N. Ben Khalifa,
N. Ben Khalifa
TU Dortmund University, Dortmund, Germany
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A. Erman Tekkaya
A. Erman Tekkaya
TU Dortmund University, Dortmund, Germany
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C. Weddeling
TU Dortmund University, Dortmund, Germany
S. Gies
TU Dortmund University, Dortmund, Germany
N. Ben Khalifa
TU Dortmund University, Dortmund, Germany
A. Erman Tekkaya
TU Dortmund University, Dortmund, Germany
Paper No:
MSEC2014-3955, V002T02A069; 9 pages
Published Online:
October 3, 2014
Citation
Weddeling, C, Gies, S, Ben Khalifa, N, & Tekkaya, AE. "Analytical Methodology for the Process and Joint Design of Form-Fit Joining by Die-Less Hydroforming." Proceedings of the ASME 2014 International Manufacturing Science and Engineering Conference collocated with the JSME 2014 International Conference on Materials and Processing and the 42nd North American Manufacturing Research Conference. Volume 2: Processing. Detroit, Michigan, USA. June 9–13, 2014. V002T02A069. ASME. https://doi.org/10.1115/MSEC2014-3955
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