Clinching of Thermoplastic Composites and Metals-A Comparison of Three Novel Joining Technologies

Clinching continuous fibre reinforced thermoplastic composites and metals is challenging due to the low ductility of the composite material. Therefore, a number of novel clinching technologies has been developed specifically for these material combinations. A systematic overview of these advanced cl...

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Bibliographic Details
Published in:Materials 2021-04, Vol.14 (9), p.2286
Main Authors: Gröger, Benjamin, Troschitz, Juliane, Vorderbrüggen, Julian, Vogel, Christian, Kupfer, Robert, Meschut, Gerson, Gude, Maik
Format: Article
Language:English
Subjects:
Clinching
Composite materials
Computed tomography
Continuous fiber composites
Ductility
Failure mechanisms
Fiber composites
Fiber reinforced polymers
Photomicrographs
Shear tests
Tensile strength
Thermoplastic composites
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Summary:Clinching continuous fibre reinforced thermoplastic composites and metals is challenging due to the low ductility of the composite material. Therefore, a number of novel clinching technologies has been developed specifically for these material combinations. A systematic overview of these advanced clinching methods is given in the present paper. With a focus on process design, three selected clinching methods suitable for different joining tasks are described in detail. The clinching processes including equipment and tools, observed process phenomena and the resultant material structure are compared. Process phenomena during joining are explained in general and compared using computed tomography and micrograph images for each process. In addition the load bearing behaviour and the corresponding failure mechanisms are investigated by means of single-lap shear tests. Finally, the new joining technologies are discussed regarding application relevant criteria.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma14092286