Ultrasonic Bonding of Multi-Layered Foil Using a Cylindrical Surface Tool
| Autor: | Tomohiro Sasaki, Yuhei Doi, Keisuke Arimoto, Taewon Kim |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Surface (mathematics)
lcsh:TN1-997 0209 industrial biotechnology Digital image correlation Materials science Relative motion plastic flow chemistry.chemical_element 02 engineering and technology Ultrasonic bonding lithium-ion battery Plasticity multi-layered foil tool geometry 020901 industrial engineering & automation General Materials Science relative motion Composite material FOIL method lcsh:Mining engineering. Metallurgy Quantitative Biology::Biomolecules Metals and Alloys 021001 nanoscience & nanotechnology Microstructure Copper chemistry 0210 nano-technology ultrasonic bonding |
| Zdroj: | Metals, Vol 9, Iss 5, p 505 (2019) Metals Volume 9 Issue 5 |
| ISSN: | 2075-4701 |
| Popis: | A cylindrical tool was applied for ultrasonic bonding of multi-layered copper foil and a copper sheet to prevent damage to the foil during bonding. The strength of the joints bonded with the cylindrical tool was comparable to that of the joints bonded with a conventional knurled tool. The effect of the cylindrical surface tool on bondability was investigated thorough relative motion behaviors between the tool surface and the bonding materials, as well as on bond microstructure evolution. The relative motion was visualized with in-situ observation using a high-speed camera and digital image correlation. At shorter bonding times, relative motions occurred at the bonding interfaces of the foil and the copper sheet. Thereafter, the relative motion between the tool and the bonding material became predominant owing to bond formation at the bonding interface, resulting in a macroscopic plastic flow in the bonded region. This relative motion damaged the foil in knurled tool bonding, and the cylindrical tool achieved bonding without any damage. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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