File(s) under permanent embargo
Roll formability of aluminium foam sandwich panels
journal contribution
posted on 2018-07-01, 00:00 authored by Matthias WeissMatthias Weiss, Buddhika Abeyrathna, Michael PereiraMichael PereiraAn aluminium foam sandwich (AFS) material was formed by V-die bending and roll forming. The V-bent sections showed material failure by shear fracture of the aluminium foam core and by delamination at the core-cover sheet interface. This led to a high-gull wing defect and a limited section depth that could be formed. In contrast, the roll forming process allowed the manufacture of long sections with acceptable profile depth. Only minor gull wing was observed, and this was related to a low-shear deformation of the aluminium foam core and an intact adhesion at the core-cover sheet interface. The higher material formability observed in roll forming compared to that in V-die bending was attributed to a more evenly distributed contact pressure and more homogeneous forming, due to the incremental nature of the process, combined with a continuous contact of the metal sheet with the top and bottom rolls. Some forming problems were also observed in the roll-formed AFS components, but overall, the results of this study suggest that roll forming represents a good alternative to bending or stamping for the forming of longitudinal components of simple cross section shape that are of interest to the transport, solar or housing industries.
History
Journal
International journal of advanced manufacturing technologyVolume
97Issue
1-4Pagination
953 - 965Publisher
SpringerLocation
London, Eng.Publisher DOI
ISSN
0268-3768eISSN
1433-3015Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2018, Springer-Verlag London Ltd., part of Springer NatureUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC