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On stretch and shrink flanging of sheet aluminium by fluid forming
Gränges Technology, Finspång, Sweden.ORCID iD: 0000-0001-8542-9006
1999 (English)In: Journal of Materials Processing Technology, ISSN 0924-0136, E-ISSN 1873-4774, Vol. 96, no 1-3, 198-214 p.Article in journal (Refereed) Published
Abstract [en]

In this investigation, vertical stretch and shrink flanging of sheet aluminium by fluid forming are studied experimentally and theoretically. The theoretical part comprises both analytical modelling and finite-element simulations.

The fracture limit in stretch flanging is determined by the plastic strain ratio, the strain hardening exponent, and the uniform strain. The greater the magnitude of these parameters, the greater will be the fracture limit.

The maximum applied pressure determines the ’wrinkling’ limit in shrink flanging by fluid forming. The greater is this pressure, the greater ’wrinkling’ limit. This limit is certainly several times greater in magnitude than that in shrink flanging by conventional tools (a rigid punch and die).

Place, publisher, year, edition, pages
Elsevier, 1999. Vol. 96, no 1-3, 198-214 p.
Keyword [en]
stretch flanging; shrink flanging; fluid forming; sheet metal forming; aluminium
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:oru:diva-55301DOI: 10.1016/S0924-0136(99)00352-0ISI: 000083884000027Scopus ID: 2-s2.0-0033224752OAI: oai:DiVA.org:oru-55301DiVA: diva2:1071255
Available from: 2017-02-03 Created: 2017-02-03 Last updated: 2017-10-18Bibliographically approved

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