The appropriate scanner can read and process the data contained in the label. »Smart labels« can be affixed to goods under production conditions of up to 100 degrees Celsius. But at higher temperatures – such as with laser fusion – they fall apart: the metal components are being manufactured out of stainless steel powder, using a laser at temperatures in excess of 1400 degrees Celsius. Such production conditions precluded the use of radio-based identification – until now.
Recently, researchers from the Fraunhofer-Institute for Manufacturing and Advanced Materials IFAM in Bremen developed a new, non-destructive process. They use the »Rapid Manufacturing« method: A machine produces a component based on a three-dimensional CAD model, building it layer-by-layer directly from the computer. The laser melts off the areas of each metal powder layer that are intended to be solid. Next, the building platform is lowered and the process restarts until the component is completed. Fraunhofer scientists can control this process in a manner that allows the RFID to be installed and completely encased by the material.
»This new process finally puts the intelligence into the metal component. You can store critical information in the radio tags, like the serial number or the manufacture date. So, for example, companies now can make their top-grade replacement parts tamper-proof and resistant to fraud,« explains project manager Claus Aumund-Kopp. If someone tries to remove the chip, they will wind up destroying it in the attempt. And soon, it will be possible to do more than just reading the identification code. Conceivably, it might even be possible to store information during the period of usage. Experts also envision the potential of this process as it relates to sensors or actuators: With the aid of temperature or expansion sensors, it may be possible to record data on thermal or mechanical stresses on the components.
In addition, the new Fraunhofer Additive Manufacturing Alliance will present technologies and services along the entire value creation chain. This includes everything from additive manufacturing technologies and tools manufacturing through to tooling, repair and maintenance. Ten institutes have joined together under the aegis of the alliance (www.generativ.fraunhofer.de).
Claus Aumund-Kopp | EurekAlert!
Terahertz spectroscopy goes nano
20.10.2017 | Brown University
New software speeds origami structure designs
12.10.2017 | Georgia Institute of Technology
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
20.10.2017 | Information Technology
20.10.2017 | Materials Sciences
20.10.2017 | Interdisciplinary Research