Abstract
This article presents the main stages and challenges in modelling and
designing of modern ultrasonic welding and cutting systems. First, the key
components of such a system, such as an ultrasonic stack (con- sisting of
a high power ultrasonic transducer and a sonotrode) and a digitally
controlled ultrasonic power supply with precise control of the output
power, have been considered. Next, a concept of measurement system for
verification and validation of mathematical models of ultrasonic stacks
and its components has been presented. Finally, a method of ultrasonic
stack e-diagnosis based on ultrasonic transducer electrical impedance
measurement during welding and cutting process has been described
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