Details
| Original language | English |
|---|---|
| Pages (from-to) | 42-46 |
| Number of pages | 5 |
| Journal | Manufacturing Letters |
| Volume | 44 |
| Early online date | 12 May 2025 |
| Publication status | Published - Jun 2025 |
Abstract
The influence of a preceding laser ablation surface treatment on cold roll bonding (CRB) efficiency under extreme high vacuum-adequate (XHV-adequate) conditions were examined. Experimental investigations were conducted in a controlled glovebox environment. The impact of varying laser parameters on the critical reduction required for bonding copper and aluminium sheets was analysed. The results demonstrate a significant reduction in critical deformation necessary for bond formation. Surfaces treated by laser ablation achieve bonding at plastic deformations as low as 0.5%. In comparison, brushed surfaces require a plastic strain of 19% in similar XHV-adequate conditions. Using confocal laser scanning microscopy, a correlation between laser parameters and resulting surface characteristics was established, revealing material-specific surface alterations. Scanning electron microscopy analysis of the bonded interfaces further shows enhanced interfacial deformation in laser-treated specimens, which is characterised by increased waviness and pronounced protrusions. The investigations demonstrate a synergistic effect between laser-induced surface modifications and oxide-free conditions in an XHV-adequate atmosphere, which leads to a significant optimisation of CRB efficiency.
Keywords
- Cold roll bonding, Copper–Aluminium bonding, Process optimisation, Surface morphology, Surface treatment by laser ablation
ASJC Scopus subject areas
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Manufacturing Letters, Vol. 44, 06.2025, p. 42-46.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Advancing cold roll bonding efficiency by preceding XHV-adequate laser deoxidation
AU - Barienti, Khemais
AU - Janthur, Finn Lennard
AU - Heimers, Henri
AU - Seffer, Sarah
AU - Hermsdorf, Jörg
AU - Herbst, Sebastian
AU - Overmeyer, Ludger
AU - Maier, Hans Jürgen
AU - Nürnberger, Florian
N1 - Publisher Copyright: © 2025 The Author(s)
PY - 2025/6
Y1 - 2025/6
N2 - The influence of a preceding laser ablation surface treatment on cold roll bonding (CRB) efficiency under extreme high vacuum-adequate (XHV-adequate) conditions were examined. Experimental investigations were conducted in a controlled glovebox environment. The impact of varying laser parameters on the critical reduction required for bonding copper and aluminium sheets was analysed. The results demonstrate a significant reduction in critical deformation necessary for bond formation. Surfaces treated by laser ablation achieve bonding at plastic deformations as low as 0.5%. In comparison, brushed surfaces require a plastic strain of 19% in similar XHV-adequate conditions. Using confocal laser scanning microscopy, a correlation between laser parameters and resulting surface characteristics was established, revealing material-specific surface alterations. Scanning electron microscopy analysis of the bonded interfaces further shows enhanced interfacial deformation in laser-treated specimens, which is characterised by increased waviness and pronounced protrusions. The investigations demonstrate a synergistic effect between laser-induced surface modifications and oxide-free conditions in an XHV-adequate atmosphere, which leads to a significant optimisation of CRB efficiency.
AB - The influence of a preceding laser ablation surface treatment on cold roll bonding (CRB) efficiency under extreme high vacuum-adequate (XHV-adequate) conditions were examined. Experimental investigations were conducted in a controlled glovebox environment. The impact of varying laser parameters on the critical reduction required for bonding copper and aluminium sheets was analysed. The results demonstrate a significant reduction in critical deformation necessary for bond formation. Surfaces treated by laser ablation achieve bonding at plastic deformations as low as 0.5%. In comparison, brushed surfaces require a plastic strain of 19% in similar XHV-adequate conditions. Using confocal laser scanning microscopy, a correlation between laser parameters and resulting surface characteristics was established, revealing material-specific surface alterations. Scanning electron microscopy analysis of the bonded interfaces further shows enhanced interfacial deformation in laser-treated specimens, which is characterised by increased waviness and pronounced protrusions. The investigations demonstrate a synergistic effect between laser-induced surface modifications and oxide-free conditions in an XHV-adequate atmosphere, which leads to a significant optimisation of CRB efficiency.
KW - Cold roll bonding
KW - Copper–Aluminium bonding
KW - Process optimisation
KW - Surface morphology
KW - Surface treatment by laser ablation
UR - http://www.scopus.com/inward/record.url?scp=105005205538&partnerID=8YFLogxK
U2 - 10.1016/j.mfglet.2025.03.002
DO - 10.1016/j.mfglet.2025.03.002
M3 - Article
AN - SCOPUS:105005205538
VL - 44
SP - 42
EP - 46
JO - Manufacturing Letters
JF - Manufacturing Letters
SN - 2213-8463
ER -