Method for non-destructively testing a quality of an ultrasonic weld
AssigneeLisa Draexlmaier GmbH
InventorsFelix KLIMAS, Thomas HERZING, Lutz LEHMANN, Daniel ZEMANN
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Abstract
A method for non-destructive testing of a quality of an ultrasonic weld from a welding process includes detecting of a time-dependent measurement value over a period of time, where the measurement value is characteristic of a mechanical or electrical vibration behavior of a welding process to be tested. The method includes evaluating a measurement-value course of the detected time-dependent measurement value by using a Fourier analysis. The method further includes comparing a result of the evaluation to a reference value in order to test the quality of the weld. A measuring device and an ultrasonic welding system are also included.
Claims18
A method for non-destructive testing of a quality of an ultrasonic weld from a welding process, the method comprising:
- detecting a time-dependent measurement value over a period of time, wherein the time-dependent measurement value is characteristic of a mechanical or electrical vibration behavior of the welding process;
- evaluating a measurement-value course of the detected time-dependent measurement value by using a Fourier analysis;
- and
- comparing a result of the evaluation to a reference value in order to test the quality of the ultrasonic weld.
A measuring device for non-destructive testing of a quality of an ultrasonic weld, is the measuring device being configured:
- to detect a measurement value over a period, wherein the measurement value is characteristic of a mechanical or electrical vibration behavior of a welding process to be tested;
- to evaluate the detected measurement value by using a Fourier analysis;
- and
- to compare a result of the evaluation to a reference value in order to test the quality of the weld.
Dependencies are inferred from the claim text.