Harvesting machinery must function without failures during the entire harvest season, for any interruption in operation will result in considerable economic losses for farmers and contractors. To increase reliability and thus, the concomitant maximum efficiency and productivity, engineers and scientists from the Fraunhofer IZFP in Saarbrücken have developed a quality assurance system for forage harvesters: The semi-automatic “LinScanDuo 2.0“ ultrasound testing system is already successfully operating at the John Deere factory in Zweibrücken.
Reliability and chopping quality are significant factors for forage harvester economy. For economical operation to be possible, the harvesting machines must guarantee, in addition to maximum availability in peak operation, high throughput.
For ensuring trouble-free operation, the researchers from the Fraunhofer Institute for Nondestructive Testing IZFP have developed the “LinScanDuo 2.0“, a high-performance testing technology for testing weld seams on blade holders of forage harvesters. “LinScanDuo 2.0“ is used to improve the quality assurance process in production, increasing the productivity and safety of the entire system.
Custom system design for inspecting weld seams
At 1,200 rpms and more than 300 tonnes of harvested crop per hour, the cutting cylinders or cutterheads with their weld-on blade holders are exposed to enormous mechanical loads. The “LinScanDuo 2.0“ ultrasound sensor system developed by the Fraunhofer IZFP can reliably inspect weld seams, ensuring that they meet all requirements.
“Our customized semi-automatic testing system is based on an electronically scanned phased array. Together with the inspection system software, which was custom-designed in-house, the quality of 100 percent of the weld seams on each cutterhead can be automatically inspected, analyzed, and documented comprehensively in digital format,“ explained Stefan Caspary, the engineer responsible for this project at the Fraunhofer IZFP.
High testing rate and seamless testing
Among the advantages of phased array technology are, for one, a very high testing rate with simultaneous, complete capture of the test volume, and secondly, the flexible adaptation of the testing system to the blade holders without time-consuming adjustments. The scanning process of both weld seams is cycled electronically, eliminating the need for the sensor / test head or the test object to move.
Years of experience in production quality assurance
The weld seams are inspected during the production process, allowing John Deere, the US-based world market leader in agricultural technology, to produce reliable and quality-tested components for forage harvesters at its Zweibrücken factory.
“Inspecting the weld seam quality, a process that used to take about 4 hours per cutterhead, now lasts not quite 20 minutes – considerable time and costs savings for the agricultural machinery manufacturer,“ added Caspary. John Deere and the Fraunhofer IZFP have been successfully cooperating for many years in this area of component inspection. The new and optimized “LinScanDuo 2.0“ system guarantees fast and comprehensive quality assurance during the production process.
Sabine Poitevin-Burbes | Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren IZFP
New insight into why Pierce's disease is so deadly to grapevines
11.06.2018 | University of California - Davis
Where are Europe’s last primary forests?
29.05.2018 | Humboldt-Universität zu Berlin
In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.
Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...
Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...
Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.
Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...
The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.
Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.
An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.
Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...
13.06.2018 | Event News
08.06.2018 | Event News
05.06.2018 | Event News
22.06.2018 | Materials Sciences
22.06.2018 | Earth Sciences
22.06.2018 | Life Sciences