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Forming an aluminium semi-pipe with flexform technique (die-forming): a comparison with conventional technique
Swedish Institute for Metals Research, Stockholm, Sweden .ORCID iD: 0000-0001-8542-9006
1992 (English)Report (Other academic)
Abstract [en]

The purpose of the present work is to compare flexform technique (die-forming) with conventional pressing technique by analyzing the strain state of the components after forming. A double curved component was formed with a die tool in flexforming and with conventional technique. The sheet material was the aluminium alloy AA6061-O, according to the American standard, with thickness of 1mm. This study shows that the flexforming (die-forming) leads to a higher local thinning. This is due to the fact that the flange, in flexforming (die-forming), is locked at the final stage of forming, after which the component is fully formed. This means that the final stage in flexforming (die-forming) is a stretching operation. The level of the strains is highly dependent on the chosen process parameters. This is valid for both flexforming and conventional forming. There is, however, a natural difference between conventional forming and flexforming (die-forming), which leads to different strain distributions. A difference, which can not be diminished by changing the process parameters of the geometry.

Place, publisher, year, edition, pages
Swedish Institute for Metals Research , 1992. , p. 23
Series
Research report ; IM-3429
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:oru:diva-55322OAI: oai:DiVA.org:oru-55322DiVA, id: diva2:1071460
Available from: 2017-02-05 Created: 2017-02-05 Last updated: 2017-10-18Bibliographically approved

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Asnafi, Nader
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CiteExportLink to record
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