Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Bright prospects – Indestructible part markings for metal processing

01.04.2015

A tag for metal components based on ceramic phosphors withstands high temperatures without affecting the properties of the component itself. The complete solution covering all stages from label printing to  readout will be presented by Fraunhofer IKTS researchers from April 13 to 17 at Hannover Messe.

Individual marking of heat-treated metal components


Sample under UV.


Sample by daylight.

For a reliable, clear and tamper-proof marking of semi-finished and end products there are a variety of labeling solutions on the market. These range from a simple serial number to integrated RFID chips (Radio Frequency IDentification).

However, these solutions do not meet the specific requirements of metal processing. Inks, for example, turn out to be problematical as they are thermally stable only up to 250 °C. Thus, their use is not possible at the elevated workpiece temperatures of up to 1250 °C.

In addition, during processing the material surface may change, which can reduce the contrast between the material and the marking so that automated readout fails. Stickon labels in turn apply too much material and thus interfere with further processing.

Markings that withstand high temperatures and chemical influences

Researchers at Fraunhofer IKTS took this challenge and developed a solution for the individual component marking. Core element of the process are ceramic phosphors that respond to optical excitation with a pronounced luminescence.

These phosphors are very robust: they withstand high temperatures, are resistant to harsh chemical environment, and can be added to a variety of materials. Thus, it is possible to incorporate the phosphors directly into inks or pastes, and to print on the metal surface.

“Depending on whether static or dynamic information is required, screen or inkjet printing is used. Both processes can be integrated into production lines. As only a minimal amount of material is printed, an influence on the workpiece characteristics or the adhesion of coatings is excluded”, explains Dr. Thomas Härtling, scientist at Fraunhofer IKTS.

Inks and pastes dosed with phosphors are safe and environmentally friendly, which means no additional health and safety measures are necessary. Due to the high contrast between marking and substrate, automated readout is possible in all lighting situations.

Protection against plagiarism by customized label properties

Both spectral properties and the luminescence decay time of the marking can be customized. Since this adjustment can take place both during and after the synthesis of phosphors, properties that can only be copied at costs arise. This advantage may, for example, be used in labeling of spare parts or other components.

From April 13 to 17, 2015, Fraunhofer IKTS researchers answer your questions in Hall 6 on Booth B16.

Weitere Informationen:

http://www.ikts.fraunhofer.de/content/dam/ikts/de/doc2/Messen/PI_Bright%20prospe..

Katrin Schwarz | Fraunhofer-Institut für Keramische Technologien und Systeme IKTS

More articles from Trade Fair News:

nachricht Fraunhofer HHI at Mobile World Congress with VR and 5G technologies
24.02.2017 | Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI

nachricht MWC 2017: 5G Capital Berlin
24.02.2017 | FOKUS - Fraunhofer-Institut für Offene Kommunikationssysteme

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

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

Im Focus: Safe glide at total engine failure with ELA-inside

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded after a glide flight with an Airbus A320 in ditching on the Hudson River. All 155 people on board were saved.

On January 15, 2009, Chesley B. Sullenberger was celebrated world-wide: after the two engines had failed due to bird strike, he and his flight crew succeeded...

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

New technology offers fast peptide synthesis

28.02.2017 | Life Sciences

WSU research advances energy savings for oil, gas industries

28.02.2017 | Power and Electrical Engineering

Who can find the fish that makes the best sound?

28.02.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>