Blechexpo 2017

•••4••• Interview Innovationen den finden sich in den einzelnen Projektthemen, die wir auf unserer Webseite darstellen. Messebesucher drücken ja gerne selbst auf Knöpfe. Was kann man an Ihrem Stand ausprobieren? Auf unserem Messestand können sie weniger auf Knöpfe als auf „Köpfe“ drücken. Die Messebe- sucher können sich mit den Aus- stellern über die verschiedenen Technologiegebiete umfassend und kompetent austauschen und neue Ideen sowohl als Problem- lösungen wie auch für die zukünf- tigen notwendigen Innovations- schritte besprechen. Die Messe Blechexpo gilt als Leis- tungsschau der Branche. Was er- warten Sie sich vom Messeauftritt in Stuttgart für die EFB? Zusammen mit unseren Mitaus- stellern möchten wir den Besu- chern der Messe vermitteln, wie spannend kooperative Forschung in einem Expertennetzwerk ist. Wir möchten den Unternehmen, die noch nicht in entsprechender Weise organisiert sind, Appetit machen und ihnen die Vorteile und Chancen vermitteln. Insbe- sondere für KMU gilt es, ihnen die Schwellenangst zu nehmen und die Vorteile einer vernetzten Forschung zu verdeutlichen. Vielen Dank für das Gespräch. Messe-Rundgang zur Anzeigen-Spezial Blechexpo/ Schweisstec 2017 Kooperative Forschung Smart sensors detect defects Researchers developed nondestructive testing method for sheet metal When quality testing uses time-consum- ing destructive test methods, it can re- sult in enormous costs due to damaging or destroying the products. And given that testing is restricted to random sam- pling, faults in processes are often not found until a large amount of scrap has already been produced. Thus, nondestructive testing methods represent an alternative and, after appropriate adaptation processes, also a replacement for destructive methods for the long run. At this year’s Blechexpo, en- gineers from the Fraunhofer In- stitute for Nondestructive Testing (IZFP) will demonstrate a robotics- supported sensor system that can rapidly and easily be integrated into production processes. The au- tomated application of intelligent, nondestructive sensor systems is not only essential for ensuring op- timum quality in production, but is also indispensable for realizing current ma- chine learning concepts. The potential use of such systems will be demonstrated in an exemplary case of robotics-supported testing of press- hardened parts by means of EMAT (Elec- tromagnetic acoustic transducer) and 3MA (Micromagnetic multiparameter, microstructure, and stress analysis). EMAT allows couplant-free testing of defects in sheet metal, while parallel application of 3MA makes quantita- tive material characterization possible. The advantages of the robotics-based combination of the two sensors (3MA, EMAT) include rapid testing in mere seconds, determining and evaluating several relevant quality characteristics, as well as the nondestructive testing of sheet metal. “The combined sensor- based testing process allows early de- tection of mechanical properties, e. g. the residual stress and the hardness of steel, as well as defects like cracks or necking. This will save resources, reduce costs, and contribute to strengthening manufacturers’ competitive position,” explains Frank Leinenbach, develop- ment engineer at the Fraunhofer IZFP. The institute has decades of experience and expertise in combining and auto- mating nondestructive testing methods for production. The steel-producing and -processing industries need nondestruc- tive testing methods in quality assur- ance. Frequently relevant quality char- acteristics include hardness, case depth, strength, and residual stresses. In this context, nondestructive micromagnetic testing methods are optimally suited for providing fast and reliable statements on the quality status of ferromagnetic materials. “An inspection task that is being re- quested frequently is the moni- toring of heavy steel plates, and the related detection of localized increases in surface hardening,” says Sargon Youssef, researcher and engineer at the Fraunhofer IZFP. These localized effects can be detected by means of micro- magnetic measuring effects when the 3MA-X8 testing technology de- veloped at the Fraunhofer IZFP is applied. The specific strengths of the 3MA- X8 testing system lie in its user- friendly learning curve and calibra- tion, as well as in its variable and robust sensor design. A key point is the test sys- tem’s multi-channel real-time capability. The 3MA-X8 testing method will be dem- onstrated at the Blechexpo in Stuttgart (Hall 5, Booth 5306) using a fair exhibit. As under realistic conditions, the high- tech testing technology will be integrat- ed in a miniaturized rolling line. Here, sheet metal to be tested will be meas- ured using the testing method, detect- ed, and sorted – if necessary – into “OK sheet metal” or “not-OK sheet metal”. Schematic layout of a rolling line for nondestructive testing of heavy plates Photo: Fraunhofer IZFP Continued from page 1 '' ǜ / ) ǜǔǓǔ Fortsetzung von Seite 2