Enhancement of the interface of friction welded steel-aluminium joints

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dc.identifier.uri http://dx.doi.org/10.15488/12698
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/12798
dc.contributor.author Behrens, Bernd-Arno
dc.contributor.author Duran, Deniz
dc.contributor.author Matthias, Tim
dc.contributor.author Ross, Ingo
dc.date.accessioned 2022-08-24T11:37:58Z
dc.date.available 2022-08-24T11:37:58Z
dc.date.issued 2020
dc.identifier.citation Behrens, B.-A.; Duran, D.; Matthias, T.; Ross, I.: Enhancement of the interface of friction welded steel-aluminium joints. In: Production Engineering 15 (2021), S. 169-176. DOI: https://doi.org/10.1007/s11740-020-00994-5
dc.description.abstract Lightweight multi-material components are of great importance for the transport industry. Not only the component’s weight can be decreased, but also its local properties can be adapted to different loading profiles. Tailored Forming is a novel concept for producing multi-material components. By using a joining process, the creation of a bond between different materials takes place in the first step of the process chain. In the subsequent steps, multi-material workpieces are processed in their joined state while maintaining or improving the joint strength. This study focuses on steel-aluminium joints, which were created by friction welding and further processed by induction heating and impact extrusion. A counter pressure superposition mechanism was implemented in the extrusion tooling to control the stress state during plastic deformation. Flow behaviours of steel and aluminium are largely different at a given temperature, which necessitates a near step-function temperature distribution in the hybrid billet to obtain matching flow stresses. An inductive heating strategy was developed which led to a temperature gradient in the billets before extrusion. Extruded billets were analysed by destructive testing methods and metallography. The bond could be maintained after extrusion when counter pressure superposition was used; but no improvement could be obtained. Without counter force superposition, however, cracks were observed in the joining interface and the joint strength decreased. This paper discusses the aforementioned findings in the current process design and makes suggestions on how the involved processes should be reconfigured to improve the joint strength. © 2020, The Author(s). eng
dc.language.iso eng
dc.publisher Berlin : Springer
dc.relation.ispartofseries Production Engineering 15 (2021)
dc.rights CC BY 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Friction Welding eng
dc.subject Impact Extrusion eng
dc.subject Multi-Material Components eng
dc.subject Tailored Forming eng
dc.subject Aluminum eng
dc.subject Aluminum coated steel eng
dc.subject Billets (metal bars) eng
dc.subject Distribution functions eng
dc.subject Extrusion eng
dc.subject Friction eng
dc.subject Induction heating eng
dc.subject Joining eng
dc.subject Testing eng
dc.subject Aluminium joints eng
dc.subject Counter pressure eng
dc.subject Destructive testing eng
dc.subject Extruded billets eng
dc.subject Extrusion tooling eng
dc.subject Inductive heating eng
dc.subject Joining interface eng
dc.subject Transport industry eng
dc.subject Friction welding eng
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Enhancement of the interface of friction welded steel-aluminium joints
dc.type Article
dc.type Text
dc.relation.essn 1863-7353
dc.relation.issn 0944-6524
dc.relation.doi https://doi.org/10.1007/s11740-020-00994-5
dc.bibliographicCitation.volume 15
dc.bibliographicCitation.date 2021
dc.bibliographicCitation.firstPage 169
dc.bibliographicCitation.lastPage 176
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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