New Multimode Sonotrodes Models Designed for Rotary Ultrasonic Welding Systems
P. Kogut, A. Milewski, W. Kardyś, P. Kluk and P. Gawryś
Tele and Radio Research Institute, Ratuszowa 11, 03-450 Warszawa, Poland
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The paper presents methods of designing sonotrodes, working in varied mechanical vibration modes in high power application regime such as rotary ultrasonic welding systems. The aim of the sonotrode design process is to optimize its shape to achieve the best energy efficiency for a given welding process. Sonotrode geometry influences the power transferred to the welded element because it determines the vibration amplitude distribution in the sonotrode. The most popular applications use sonotrodes designed for axial vibration. Conducted research have shown that the optimal displacement and strain distribution is achieved for sonotrodes working in various vibration modes such as axial, transverse, radial or their compositions. In the paper examples of multimode sonotrode models for various rotary ultrasonic welding technologies have been presented.

DOI: 10.12693/APhysPolA.124.474
PACS numbers: 43.40.-r, 43.40.+s, 43.35.+d, 43.38.+n, 43.38.-p, 46.40.-f