Development of a semi-empirical bond strength model for multi-pass hot roll bonding based on the characterizations using the truncated-cone experiment

With special reference to the modelling of hot roll bonding, new experimental procedures to measure the resulting bond strength for a combination of AA6016 and AA8079 aluminum alloys at elevated temperatures and various strain rates using laboratory tests are proposed. The data acquired by this proc...

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Bibliographic Details
Published in:International journal of material forming 2024-07, Vol.17 (4), Article 41
Main Authors: Krämer, Alexander, Liu, Zhao, Teller, Marco, Aretz, Holger, Karhausen, Kai, Bailly, David, Hirt, Gerhard, Lohmar, Johannes
Format: Article
Language:English
Subjects:
Aluminum base alloys
Bonding strength
CAE) and Design
Computational Intelligence
Computer-Aided Engineering (CAD
Control
Data acquisition
Dynamical Systems
Engineering
High temperature
Machines
Manufacturing
Materials Science
Mechanical Engineering
Original Research
Processes
Roll bonding
Temperature dependence
Vibration
Yield strength
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Summary:With special reference to the modelling of hot roll bonding, new experimental procedures to measure the resulting bond strength for a combination of AA6016 and AA8079 aluminum alloys at elevated temperatures and various strain rates using laboratory tests are proposed. The data acquired by this procedure is used to developed and calibrate a semi-empirical model, which accurately predicts the resulting bond strength within an error of 2 MPa on average. It is shown that the bond strength generally follows the flow stress regarding the dependency on temperature and strain. Additionally, inter-pass times can increase the bond strength, provided that both a suitable temperature and timespan are realized. Contrary, multiple consecutive height reductions were found to reduce the bond strength.
ISSN:1960-6206
1960-6214
DOI:10.1007/s12289-024-01839-7