Analytical methodology for the process and joint design of form-fit joining by die-less hydroforming

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

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.

Original languageEnglish
Title of host publicationASME 2014 International Manufacturing Science and Engineering Conference : Proceedings
Number of pages9
Volume2
PublisherThe American Society of Mechanical Engineers (ASME)
Publication date2014
ISBN (electronic)978-0-7918-4581-3
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventInternational Manufacturing Science and Engineering Conference ASME 2014 - Detroit, Michigan, United States
Duration: 09.06.201413.06.2014
Conference number: 42

Bibliographical note

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
Conference Sponsors: Manufacturing Engineering Division
Paper No. MSEC2014-3955, pp. V002T02A069

    Research areas

  • Engineering - Form-fit joints , Joining by hydroforming , Space frame structure

DOI

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