Hiwi Recruiting Event - Fraunhofer IZFP
Normungsaktivitäten - Fraunhofer IZFP
Eine besonders hohe Zeit- und damit Ortsauflösung beim Laserschweiß-Monitoring ohne Aussageverlust erreichen ⁉️Hierzu haben Wissenschaftler*innen des #FraunhoferIZFP eine Studie veröffentlicht. Jetzt online lesen❗
https://www.mdpi.com/2076-3417/13/18/10548
#Weknowhow #fraunhofer #monitoring #innovations #ndt #ndtinspection #welding #machinelearning #laser
Temporal Resolution of Acoustic Process Emissions for Monitoring Joint Gap Formation in Laser Beam Butt Welding
With the increasing power and speed of laser welding, in-process monitoring has become even more crucial to ensure process stability and weld quality. Due to its low cost and installation flexibility, acoustic process monitoring is a promising method and has demonstrated its effectiveness. Although its feasibility has been the focus of existing studies, the temporal resolution of acoustic emissions (AE) has not yet been addressed despite its utmost importance for realizing real-time systems. Aiming to provide a benchmark for further development, this study investigates the relationship between duration and informativeness of AE signals during high-power (3.5 kW) and high-speed (12 m/min) laser beam butt welding. Specifically, the informativeness of AE signals is evaluated based on the accuracy of detecting and quantifying joint gaps for various time windows of signals, yielding numerical comparison. The obtained results show that signals can be shortened up to a certain point without sacrificing their informativeness, encouraging the optimization of the signal duration. Our results also suggest that large gaps (>0.3mm) induce unique signal characteristics in AE, which are clearly identifiable from 1 ms signal segments, equivalent to 0.2mm weld seam.
No more unplanned bridge closures due to obsolescence in the future⁉️ As part of a joint project,
#FraunhoferIZFP is working in the "ImaB-Edge" project to use distributed sensor electronics to make the
#monitoring of
#infrastructure structures efficient, predictive, autonomous and permanent. The Federal Ministry of Education and Research is supporting the project with 5.6 million euros.
https://www.izfp.fraunhofer.de/en/Presse/Pressemitteilungen/ImaB-Edge.html#Weknowhow #Fraunhofer #infrastructure #sensors #maintenance #ndt #ndtinspectionPress Release - Fraunhofer IZFP
Ungeplante Brückensperrungen ade⁉️ Als Teil eines Verbundvorhabens arbeitet das #FraunhoferIZFP im Projekt »ImaB-Edge« daran, mittels verteilter Sensorelektronik die Überwachung von Infrastrukturbauwerken effizient, vorausschauend, autark und permanent zu machen. Das Bundesministerium für Bildung und Forschung unterstützt das Vorhaben mit 5,6 Millionen Euro.
https://www.izfp.fraunhofer.de/de/Presse/Pressemitteilungen/ImaB-Edge.html
#Weknowhow #Fraunhofer #Infrastruktur #Sensoren #Instandhaltung #monitoring #zfp #ndt #ndtinspection
Presseinformation - Fraunhofer IZFP
The 4th edition of the "International Symposium on Structural Health Monitoring and Nondestructive Testing" (SHM-NDT 2023) will take place in Chengdu, Sichuan, China, from September 20 to 22. Fraunhofer IZFP will be represented by Prof. Bernd Valeske (as key note speaker) and Christian Conrad.
http://www.shmndt.com/en/web
#Weknowhow #FraunhoferIZFP #fraunhofer #ndt #ndtinspection #appliedscience #sensors #nde #materialsScience #circulareconomy #monitoring
Vom 20. bis 22. September findet in Chengdu, Sichuan, China die 4. Auflage des »International Symposium on Structural Health Monitoring and Nondestructive Testing« (SHM-NDT 2023) statt. Für das Fraunhofer IZFP werden Institutsleiter Prof. Bernd Valeske (als Key Note Speaker) sowie Christian Conrad teilnehmen.
http://www.shmndt.com/en/web
#Weknowhow #fraunhoferizfp #fraunhofer #ndt #ndtinspection #appliedscience #sensors #nde #materialsScience #circulareconomy #monitoring
Jetzt Online: Eine Publikation zum Thema »Ultraschallbasierte in situ Vorspannkraftermittlung an #Schrauben ohne Referenzmessung im nicht verspannten Zustand durch Kombination von Longitudinal- und Transversalwellen« mit Beteiligung unserer Wissenschaftler Simon Herter und Michael M. Becker. Und das Gute daran: Sie ist open access❗
https://onlinelibrary.wiley.com/doi/10.1002/mawe.202100355
#Weknowhow #fraunhoferizfp #fraunhofer #sensor #materialwissenschaft #werkstofftechnik
Plastik ist vom Wertstoff zum Müllproblem geworden. Wie künftig damit umgehen? Das erforscht unter anderem unser Wissenschaftler Andreas Keller. Im aktuellen Fraunhofer-Magazin spricht er über die Zukunft dseh Plastikrecyclings.
https://lnkd.in/ePbcCxeR
#Weknowhow #fraunhoferizfp #fraunhofer #plastik #recycling #plastic
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Fraunhofer IZFP
