where expertise comes together - since 1996

Web's Largest Portal of Nondestructive Testing (NDT)
Open Access Database (Conference Proceedings, Articles, News), Exhibition, Forum, Network


NDT.net Issue - 2015-11 - NEWS

Reliable in-line inspections of high-strength automotive body


Fraunhofer-Institute for Non-Destructive Testing (IZFP)447, Saarbrücken [Germany]
NEWS  
NDT.net Journal
Issue: 2015-11
Nondestructive material testing (NDT) is a fast and effective way to analyze the quality of a product during the manufacturing process. Because defective materials can lead to malfunctioning finished products, NDT is an essential quality assurance measure, especially in the manufacture of safety-critical components such as automotive Bpillars. NDT examines the quality without damaging the component or modifying the surface of the material. At this year's Blechexpo trade fair in Stuttgart, Fraunhofer IZFP will have an exhibit that demonstrates the nondestructive testing of high-strength automotive body parts using 3MA. The measurement results are available in a matter of seconds.

To minimize vehicle weight and fuel consumption while providing the highest level of crash safety, automotive bodies are reinforced with elements made from high-strength steel. Automotive manufacturers and suppliers are relying more and more on so-called hot stamping or press hardened processes to produce these components. Fraunhofer IZFP has developed a fast and low-cost 3MA nondestructive testing technique that can be used to monitor and control the corresponding manufacturing processes. "Timeconsuming destructive testing methods result in enormous quality assurance costs, because among things the product is destroyed in the process. And since it's only possible to carry out spot checks, problems with the manufacturing process are often detected only after a significant number of rejects are generated," says Dr. Bernd Wolter, head of the Production-integrated NDT department at Fraunhofer IZFP. Suitable nondestructive testing processes offer an alternative that over the long term can be adapted and utilized as a replacement for destructive methods.


Reliable in-line 3MA inspection results within seconds. © Uwe Bellhäuser

The 3MA inspection technology developed by Fraunhofer IZFP is well-suited for measuring positions that cannot be inspected with destructive processes, such as when there is simply no space to carry out the measurements (tension rods as an example). "We can ensure 100 percent testability during the production process. That eliminates the need for time-consuming spot checks. Our researchers and engineers developed and certified this inspection method for use in high-volume automobile production systems. This inline, nondestructive process can be automated, a feature that is clearly to unique to Fraunhofer IZFP," emphasizes Wolter.

By combining four micro-magnetic inspection processes - harmonic analysis, incremental permeability, Barkhausen noise analysis and multi-frequency eddy current - this approach provides a fast and simple way to determine the quality of essential mechanical properties such as hardness, tensile strength and diffusion layer thickness. The exhibit will illustrate several specific capabilities related to the monitoring and inspecting of manufacturing processes, press-hardened products, valve spring production and rolled steel manufacture, with a focus on production processes in the automobile, steel production and machine/plant engineering industries.

For further information:
Dr.-Ing. Bernd Wolter | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP | Phone +49 681 9302- 3883 | Campus E3.1 | 66123 Saarbrücken, Germany | www.izfp.fraunhofer.de | bernd.wolter@izfp.fraunhofer.de

More of Fraunhofer-Institute for Non-Destructive Testing (IZFP) published in NDT.net
2018-09-01: Regelsystem zur automatischen Positionsoptimierung eines Wirbelstromsensorsystems bei der Prüfung gekrümmter Bauteile
2018-09-01: Methode zur Projektion komplexer 3D-Wirbelstromprüfdaten auf beliebigen gekrümmten Bauteilen
2018-09-01: Intelligentes Lebensdauermanagement durch Verfügbarkeit von ZfP-Daten über den Produktlebenszyklus
2018-09-01: Materialcharakterisierung und -unterscheidung unter Einsatz induktiv-magnetostriktiver Hybridwandler
2018-09-01: Mikromagnetische Detektion von Hardspots an Grobblechen
2018-09-01: Untersuchung der Stabilität zweier Ansätze zur Berechnung von Eigenspannungsprofilen durch Inversion von Rayleigh-Wellen-Dispersionsdaten
2018-09-01: Elektromagnetische Ultraschallmessungen zur Untersuchung der Anelastizität im Zugversuch an C45 Stahl
2018-08-01: Numerical study of resonant frequencies in multi-material microstructures excited by ultrasonic vibrations
2018-08-01: Using Appropriate Models and Synthetic Data to Study the Properties of TFM Ultrasonic Imaging
2018-08-01: A Comparison of Three Approaches for the Inversion of Ultrasonic Rayleigh Wave Data into Residual Stress Profiles
All 430 Articles & News of Fraunhofer-Institute for Non-Destructive Testing (IZFP) in NDT.net


© NDT.net - The Web's Largest Portal of Nondestructive Testing (NDT) ISSN 1435-4934

Open Access Database, |Conference Proceedings| |Articles| |News| |Exhibition| |Forum| |Professional Network|