Prediction of Process Forces in Fiber Metal Laminate Stamping

Research output: Journal contributionsJournal articlesResearchpeer-review

Authors

The stamping of fiber metal laminates (FMLs) at thermoforming temperature of the thermoplastic matrix is investigated. The studied FML types consist of a unidirectional carbon fiber-reinforced core that is attached to metal cover layers either made of a steel or magnesium alloy. An analytical model is established in order to predict the process forces during forming, which are the blankholder force required to make the metal covers yield plastically, the punch force, and the corresponding load distribution on the individual layers (outer layer, core layer, and inner layer). The global forces are primarily verified through experimental force measurements, while numerical simulations are mainly performed to assess the resulting load distribution with the help of strain distributions in the cover layers. The results show that the introduced model can be applied successfully if the stamp-forming process is dominated by friction-induced tensional loading rather than by bending.

Original languageEnglish
Article number0310021
JournalJournal of Manufacturing Science and Engineering
Volume140
Issue number3
Number of pages9
ISSN1087-1357
DOIs
Publication statusPublished - 01.03.2018
Externally publishedYes

    Research areas

  • Engineering - Alloy steel, Bending (forming), Carbon, Electric power plant loads, Magnesium alloys, Metals, Stamping, Steel fibers, Strain, Thermoforming, Materials processing, Modeling and stimulation, Sheet metal forming, Tube metal forming

DOI