The ultrasound is used to realise a variety of applications, among other things cutting, welding, punching and riveting of plastics and textiles. The process offers many advantages over other joining methods. An important factor is the flexibility of the systems, which are designed for many different applications and requirements. Furthermore, it is a very energy efficient process.
There are basically two types of oscillations: for transverse waves, the oscillation direction is perpendicular to the propagation direction. Examples are strings of musical instruments or light in a vacuum.
The oscillation direction and the propagation direction of longitudinal waves are aligned. This is the case, among other things, with sound waves in gases or liquids.
Because, in addition to the desired oscillations (usually longitudinal oscillations), further modes of oscillation are possible which are close to the operating frequency, the components may be subjected to undesired bending and torsion oscillations or mixed modes of oscillation. These modes prevent proper operation and lead in the medium term to the destruction of the tools. The more complex a sonotrode is, the more difficult it will be to exclude idler frequencies by FEM analysis and customized design.
Ultrasonic systems use longitudinal waves for energy transmission. To achieve an optimum energy yield, the systems are dimensioned in such a way that the resonance frequency of the individual components corresponds exactly to the applied operating frequency. This is the case if the length of the components is half a wavelength or a multiple thereof
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What you should know about us: we manufacture in Germany, deliver everything from one source, live up to the culture of innovation and are constantly exchanging ideas with our customers.
Where we come from
Schunk Sonosystems Innovations was founded in 1985 under the name Ultrasonics Steckmann GmbH by Prof. Dr. Helge Steckmann. The former company’s headquarters were in Graevenwiesbach-Hundstadt. Ultrasonics Steckmann has successfully completed numerous projects in the ultrasonic welding of plastics and metals and gained recognition at national and international level among experts over decades. The development and construction of large plants for the solar industry necessitated opening of a second location, which was opened in 2006 in Graevenwiesbach and is now the only location of the company. In 2016, the Schunk Group acquired the company, thus supplementing the already existing portfolio in ultrasonic processing. Since 2019 Ultrasonics Steckmann operates under the name Schunk Sonosystems Innovations GmbH as a subsidiary of Schunk Sonosystems GmbH, the world’s market and technology leader in ultrasonic metal welding. As our partner, you are the first to benefit from great exchange of experience and innovation and from the bundled resources of both companies.
Where you can find us
Schunk Sonosystems Innovations GmbH
Thueringer Straße 19