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Quality control for joints
Wood, textiles, metals, plastics – There are a wide range of material combinations and just as many joining processes. The quality of these joints is highly relevant for the functionality and quality of the finished product. Therefore, they are subjected to considerable – in part manual – inspections.
As a non-destructive test method, heat flow thermography is ideally suitable for such tasks The quality of a joint can be inspected reliably, quickly and above all non-destructively. This method exploits the fact that a poor material joint results in reduced heat conductivity
For testing, the connection is subjected to inhomogeneous pulse heating, and the resulting heat flow recorded with an extremely fast, high-resolution IR camera with up to 20,000 images per second. The image data of this "infrared video" are condensed to a result image, often in real time, which depicts the various defects.
Heat flow thermography testing provides valuable support for product development and quality assurance, and it also enables automatic 100% production monitoring in a wide range of applications. |
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This method has already been applied for the following joining processes:
- Welding (laser, spot welding,...)
- Gluing
- Soldering
- Riveting (e.g. blind rivets)
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