Analysis of the Influence of Fibers on the Formability of Metal Blanks in Manufacturing Processes for Fiber Metal Laminates
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In: Journal of Manufacturing and Materials Processing, Vol. 3, No. 1, 2, 03.2019.
Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Analysis of the Influence of Fibers on the Formability of Metal Blanks in Manufacturing Processes for Fiber Metal Laminates
AU - Mennecart, Thomas
AU - Gies, Sören
AU - Ben Khalifa, Noomane
AU - Tekkaya, A. Erman
N1 - Funding Information: Funding: This research was funded by DFG (Deutsche Forschungsgemeinschaft) within the project BE 5196/4-1. Publisher Copyright: © 2019 by the authors.
PY - 2019/3
Y1 - 2019/3
N2 - In the one-step manufacturing process for fiber metal laminate parts, the so-called in situ hybridization process, the fabrics are interacting with metal blanks. During deep drawing, the liquid matrix is injected between the metal sheets through the woven fiber layers. The metal blanks can be in contact with dry or with infiltrated fibers. The formability of the blanks is influenced by the variation of the starting time of injection. The reason for that is that, due to high contact forces, the fibers are able to deform the metal surface locally, so that movement and the strain of the blanks is inhibited. To investigate the influence of different fibers on the formability of metals, Nakazima tests are performed. In these tests, two metal blanks are formed with an interlayer of fibers. The results are compared with the formability of two blanks without any interlayer. It is shown that in with fibers between sheets, the formability decreases compared to the formability of two metal blanks without interlayers. Based on a simplified numerical model for different types of fibers, the interactions of the fibers with the metal blank are analyzed. It could be shown that the friction due to contact has more influence than the friction due to the form fit caused by the imprints.
AB - In the one-step manufacturing process for fiber metal laminate parts, the so-called in situ hybridization process, the fabrics are interacting with metal blanks. During deep drawing, the liquid matrix is injected between the metal sheets through the woven fiber layers. The metal blanks can be in contact with dry or with infiltrated fibers. The formability of the blanks is influenced by the variation of the starting time of injection. The reason for that is that, due to high contact forces, the fibers are able to deform the metal surface locally, so that movement and the strain of the blanks is inhibited. To investigate the influence of different fibers on the formability of metals, Nakazima tests are performed. In these tests, two metal blanks are formed with an interlayer of fibers. The results are compared with the formability of two blanks without any interlayer. It is shown that in with fibers between sheets, the formability decreases compared to the formability of two metal blanks without interlayers. Based on a simplified numerical model for different types of fibers, the interactions of the fibers with the metal blank are analyzed. It could be shown that the friction due to contact has more influence than the friction due to the form fit caused by the imprints.
KW - Engineering
KW - Deep drawing
KW - Fiber metal laminates
KW - Formability
UR - http://www.scopus.com/inward/record.url?scp=85071905419&partnerID=8YFLogxK
U2 - 10.3390/jmmp3010002
DO - 10.3390/jmmp3010002
M3 - Journal articles
VL - 3
JO - Journal of Manufacturing and Materials Processing
JF - Journal of Manufacturing and Materials Processing
SN - 2504-4494
IS - 1
M1 - 2
ER -