Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

unverDROSSen – efficient, conservation-friendly production of large casting components

03.03.2015

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 re-worked 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.


“Turret of the Südkronsberg wind power turbine from below“

©: Axel Hindemith / Wikimedia Commons

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.

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.

* 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

** (a German word that means thorough, with painstaking care)

Weitere Informationen:

http://www.izfp.fraunhofer.de
http://www.lbf.fraunhofer.de

Sabine Poitevin-Burbes | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP

More articles from Machine Engineering:

nachricht PRESTO – Highly Dynamic Powerhouses
15.05.2017 | JULABO GmbH

nachricht Making lightweight construction suitable for series production
24.04.2017 | Laser Zentrum Hannover e.V.

All articles from Machine Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

Heating quantum matter: A novel view on topology

22.08.2017 | Physics and Astronomy

Stretchable biofuel cells extract energy from sweat to power wearable devices

22.08.2017 | Power and Electrical Engineering

New technique to treating mitral valve diseases: First patient data

22.08.2017 | Medical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>