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 - 2015-04 - NEWS

unverDROSSen – efficient, conservation-friendly production of large


Fraunhofer-Institute for Non-Destructive Testing (IZFP)452, Saarbrücken [Germany]
NEWS  
NDT.net Journal
Issue: 2015-04
To compete in the international iron manufacturing market, the capability to efficiently produce large-scale casting parts while conserving resources is becoming increasingly essential. Particularly with wind power systems, the dross* found in large cast iron components with nodular graphite (GJS) can increase manufacturing, personnel and energy costs. These components must frequently be reworked using extremely time-consuming manual processes.

Manufacturers of cast components (wind power turbines and ship engines for instance) are all too aware of the problem with dross, an issue that has not been resolved to date. A research project involving renowned industry partners has finally opened up the possibility of examining large casting components with dross defects in a targeted fashion and developing ways to turn dross into usable parts, keep the re-work to a minimum and in particular avoid the scrapping of defective components, something which is a major benefit to manufacturers and users.

For more than 40 years, researchers at the Fraunhofer Institute for Nondestructive Testing IZFP have been involved in the development and enhancement of innovative nondestructive testing (NDT) methods for every conceivable industry. Whether it`s cracks, delamination, material damage or material changes, these defects may frequently be invisible to the human eye, but not to the nondestructive testing experts at Fraunhofer IZFP.

To date, the research industry has had little involvement in the problem of dross since these components are either re-worked or declared as rejects. “Research has shown that several nondestructive testing processes possess excellent potential in more accurately identifying and characterizing these impurities. Our part in the unverDROSSen research project involves further developing existing NDT processes and where applicable to transfer newly developed processes into practical application,“ explains Dr. Jochen Kurz head of the Materials Characterization department at Fraunhofer IZFP. Working closely together with Fraunhofer IZFP is the Fraunhofer Institute for Structural Durability and System Reliability LBF, which is examining the issue of structural durability.

* Dross describes impurities caused by oxidation that form on the surface of molten metals. Components that exhibit these types of structural defects are frequently rejected during the construction of wind power systems

The unverDROSSen** project is being sponsored by the German Federal Ministry of Education and Research through its Jülich project management organization. Under the project leadership of Fraunhofer LBF and with the participation of renowned industry and association partners, the primary aim is to transfer the results of the research into practical applications for industry.
The project is slated for completion by the end of 2017.
** (a German word that means thorough, with painstaking care)

GJS-based cast parts are important components in the construction of engines and engine housings. “Turret of the Südkronsberg wind power turbine from below“ ©: Axel Hindemith / Wikimedia Commons

For further information:
Dr.-Ing. Jochen Kurz | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP | Phone +49 681 9302- 3880 | Campus E3.1 | 66123 Saarbrücken, Germany | www.izfp.fraunhofer.de | jochen.kurz@izfp.fraunhofer.de
Dipl.-Ing. Christoph Bleicher | Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF | Phone +49 6151 705-8359 | Bartningstr. 47 | 64289 Darmstadt, Germany | www.lbf.fraunhofer.de | christoph.bleicher@lbf.fraunhofer.de

More of Fraunhofer-Institute for Non-Destructive Testing (IZFP) published in NDT.net
2018-12-01: Comparison of different microphone arrays for signal processing in nondestructive testing
2018-12-01: An Ultrasonic Non-Destructive Testing Method for Evaluating Resistance Spot Welding Quality
2018-12-01: SAFT Processing for Manually Acquired Ultrasonic Measurement Data with 3D Smart Inspect
2018-12-01: Design and Prototyping of a 3-D Positioner for Ultrasound Quality Control Measurements
2018-11-01: Robot-assisted sensor system for quality assurance of press-hardened components
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
2018-09-01: Regelsystem zur automatischen Positionsoptimierung eines Wirbelstromsensorsystems bei der Prüfung gekrümmter Bauteile
2018-09-01: Methode zur Projektion komplexer 3D-Wirbelstromprüfdaten auf beliebigen gekrümmten Bauteilen
All 435 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|