Ultrasonic welding of poly(vinyl alcohol) coated-papers hydrophobized by chromatogeny grafting

Charlier, Quentin; Viguié, Jérémie; Harthong, Barthélémy; Imbault, D.; Peyroux, Robert; Martinez, Philippe; Caron, Marie; Guérin, David

doi:10.1007/s10570-022-04868-0

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Physics Of Ultrasonic Welding Principle1

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2023

2024

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Cited by 4 publications

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“…Nowadays, there are a lot of experimental investigations and numerical simulations of ultrasonic welding processes [24][25][26][27]. But work on understanding the principle of ultrasonic welding is relatively rare [28,29].…”

Section: Physics Of Ultrasonic Welding Principlementioning

confidence: 99%

Digest Ultrasonic Welding I: Localized Heating and Fuse Bonding

Yang¹,

Yang²

2023

Preprint

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This paper reports a new insight on the principle of ultrasonic welding process. Physics of ultrasonic welding process is considered to be an inverse process of shear band formation. Both ultrasonic welding and shear band formation involve temperature rising due to localized plastic deformation. During shear band formation, heat will lead to damage of materials, e.g., initiation of cracks inside materials. But heat generated in ultrasonic welding process will bond two pieces or repair the cracks inside materials [1]. Energy directors used in ultrasonic welding process act as a trigger of localized plastic deformation. Mathematically, We found out that heating generation during ultrasonic welding process is similar to heating generation by electric current.

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