Material-dependent Ultrasonic Heating Behavior during the Reshaping of Dry Paper Webs

André Hofmann, Albrecht Löwe, Marek Hauptmann


The use of ultrasonic tools during the reshaping of dry paper webs results in a temperature increase. This work aimed to determine the influence of the material and the ultrasonic process parameters of amplitude, ultrasonic duration, and static process pressure on the heating behavior of paperboard during ultrasonic-assisted reshaping. The results showed that the initial process pressure, the ultrasonic amplitude, and the compression resistance of the material noticeably influenced the heating rate. Materials with low compression resistance tended to reach higher initial heating rates during ultrasonic treatment. In addition, coating the paperboard led to an even temperature distribution in the paperboard during the ultrasonic process.


Ultrasound; Forming; Paperboard; Material heating

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