Ultrasonic layer resonance assisted adhesive bonding for metal plates

Hakkaku, Toru; Mori, Naoki; Hayashi, Takahiro

doi:https://doi.org/10.1038/s41598-025-19688-y

Ultrasonic layer resonance assisted adhesive bonding for metal plates

Hakkaku, Toru; Mori, Naoki; Hayashi, Takahiro

Scientific reports, 2025, 15, 35842

アクセス数:2件（2025-10-23 15:50 集計）

固定URL: https://hdl.handle.net/11094/102843

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タイトル	Ultrasonic layer resonance assisted adhesive bonding for metal plates
著者	著者名 Hakkaku, Toru
	NRID 1000000802092 1000000802092 ORCID 0000-0002-0707-3443 0000-0002-0707-3443 researchmap permalink 7000020478 7000020478 Scopus Author ID 57790540700 57790540700 著者名 Mori, Naoki
	NRID 1000030324479 1000030324479 ORCID 0000-0001-6064-4658 0000-0001-6064-4658 researchmap permalink takahiro_hayashi takahiro_hayashi Scopus Author ID 37064150200 37064150200 著者名 Hayashi, Takahiro
キーワード等	Adhesive bonding
	Curing monitoring
	Layer resonance
	Pretreatment
	Ultrasound
内容	Hakkaku T., Mori N., Hayashi T.. Ultrasonic layer resonance assisted adhesive bonding for metal plates. Scientific reports 15, 35842 (2025); https://doi.org/10.1038/s41598-025-19688-y.
抄録	Adhesive bonding can be enhanced with appropriate pretreatment methods, one of which includes the application of mechanical vibrations to uncured adhesives on a substrate. Previous studies have shown that high-power ultrasonic vibrations at low frequencies promote wettability between the adhesive and substrate, resulting in increased bond strength after the cure. High-frequency ultrasounds may also affect adhesion due to their unique phenomenon resulting from shorter wavelengths, but that remains unexplored. In this paper, an ultrasonic treatment assisted by layer resonance is proposed for adhesive joints. Ultrasonic vibrations are applied to a curing adhesive layer based on the resonance frequencies measured by the ultrasonic pulse-echo technique. Tensile shear tests demonstrate that the resonance of a curing adhesive layer can enhance bond strength after the cure. In particular, this treatment is shown to be effective if a frequency sweep is adopted according to an increase in the resonance frequency due to the curing process. The improvement in bond strength is associated with the relation between the processing time in the proposed treatment and the pot life of the adhesive, depending on the type of adhesive used. The findings of this paper show that the proposed treatment can improve bond strength but requires appropriate processing conditions depending on the bonding situations.
出版者	Nature Portfolio
収録物名	Scientific reports
巻(号)	15
ページ	35842
刊行年月	2025-10-14
言語	英語
ハンドルURL	https://hdl.handle.net/11094/102843
eISSN	20452322
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1038/s41598-025-19688-y
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Scientific reports. 2025, 15, p. 35842
DC.title	Ultrasonic layer resonance assisted adhesive bonding for metal plates
DC.creator	Hakkaku, Toru
	Mori, Naoki
	Hayashi, Takahiro
DC.publisher	Nature Portfolio
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2025-10-14
DC.identifier	https://doi.org/10.1038/s41598-025-19688-y
DC.subject	Adhesive bonding
	Curing monitoring
	Layer resonance
	Pretreatment
	Ultrasound
DC.description	Hakkaku T., Mori N., Hayashi T.. Ultrasonic layer resonance assisted adhesive bonding for metal plates. Scientific reports 15, 35842 (2025); https://doi.org/10.1038/s41598-025-19688-y.
DCTERMS.abstract	Adhesive bonding can be enhanced with appropriate pretreatment methods, one of which includes the application of mechanical vibrations to uncured adhesives on a substrate. Previous studies have shown that high-power ultrasonic vibrations at low frequencies promote wettability between the adhesive and substrate, resulting in increased bond strength after the cure. High-frequency ultrasounds may also affect adhesion due to their unique phenomenon resulting from shorter wavelengths, but that remains unexplored. In this paper, an ultrasonic treatment assisted by layer resonance is proposed for adhesive joints. Ultrasonic vibrations are applied to a curing adhesive layer based on the resonance frequencies measured by the ultrasonic pulse-echo technique. Tensile shear tests demonstrate that the resonance of a curing adhesive layer can enhance bond strength after the cure. In particular, this treatment is shown to be effective if a frequency sweep is adopted according to an increase in the resonance frequency due to the curing process. The improvement in bond strength is associated with the relation between the processing time in the proposed treatment and the pot life of the adhesive, depending on the type of adhesive used. The findings of this paper show that the proposed treatment can improve bond strength but requires appropriate processing conditions depending on the bonding situations.
DC.rights	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
DC.format	102843
citation_title	Ultrasonic layer resonance assisted adhesive bonding for metal plates
citation_author	Hakkaku, Toru
	Mori, Naoki
	Hayashi, Takahiro
citation_publisher	Nature Portfolio
citation_language	英語
citation_date	2025-10-14
citation_journal_title	Scientific reports
citation_volume	15
citation_firstpage	35842
citation_doi	https://doi.org/10.1038/s41598-025-19688-y
citation_public_url	https://hdl.handle.net/11094/102843

Ultrasonic layer resonance assisted adhesive bonding for metal plates

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