vor 6 Jahren

Cluster Report Photonics in the Capital Region Berlin-Brandenburg

  • Text
  • Imaging
  • Photonics
  • Berlin
  • Optical
  • Laser
  • Technologies
  • Optics
  • Microsystems
  • Components
  • Brandenburg


16 Cluster Report Optics and Photonics – Laser Technology VisUV_AC_Laser module: compact, all-in-one laser module that can generate pulsed laser light with up to three different wavelengths in picoseconds © PicoQuant GmbH The Vistac GmbH in Teltow offers a cane for the visually impaired to scan the surroundings by laser and warn of obstacles. The principle is also used for collision protection sensors. The answers are manifold. The laser already has a strong position in cutting and welding applications, and additive processes such as 3D printing of metals are becoming more common by the day. Due to the great significance of lasers for material processing, it is no wonder that not only technically oriented universities and research institutes are active in this field, but also that many manufacturers in Berlin Brandenburg have also specialised in lasers for these applications. The Department for “Beschichtungstechnik” at TU Berlin is investigating ways to use lasers to join materials that were previously considered to be non-weldable and how this might be applied to the coating or repair of components. The staff at the Department “Technik” at TH Brandenburg is also working on joints that were previously not possible, for example, the welding of very thin wires and also those with very different thicknesses. In addition, companies are offered new processes and partnerships in such fields as cutting, soldering, welding, or drilling with lasers. CryLas Crystal Laser Systems GmbH develops, produces, and supplies diode-pumped solid state lasers in the DUV, UV, VIS, and IR ranges for a wide variety of applications in science, research, and industry. How this technology can be used is shown by CryLaS subsidiary Secopta analytics GmbH. Secopta develops and produces laser spectroscopic solutions for industrial and security measurement tasks. Using laser-induced breakdown spectroscopy (LIBS) and fast neural networks to evaluate the results, samples can be analysed directly in the process and without special preparation. Applications include the recycling sector for sorting various materials and alloys, process monitoring and quality assurance in the processing industry, and the detection of hazardous substances and pollutants in the health and safety sector. Fast and precise: using lasers to process materials It is impossible to imagine modern production technology without laser-based material processing. Nevertheless, development does not stop, and intensive research continues. Today, the main questions are: Where are lasers a less expensive option than other methods? Where do they enable more performance with less material consumption? And, in general: which new designs are only possible with lasers? fe-schwerpunkte-und-themen/lasertechnik/ Investigating various laser material processing methods in its Chair of “Füge- und Schweißtechnik” will be done at the Brandenburg University of Technology BTU Cottbus-Senftenberg. The chair is a part of the Institute for Production Research in the Faculty 3 for Mechanical Engineering, Electrical, and Energy Systems. The focus here is on the cross-industry development of energy- and material-efficient lightweight construction solutions and associated manufacturing technologies. Prof. Vesselin Michailov, who holds the chair, is also Managing Director of Panta Rhei gGmbH, a research centre for lightweight construction materials. Since it was founded in 2001, with BTU as its main partner, the centre has primarily been investigating lightweight construction materials based on aluminium, magnesium, titanium, high-temperature titanium aluminide alloys, and high-strength surface-finished steels.

Cluster Report Optics and Photonics – Laser Technology 17 The staff at Beuth University of Applied Sciences is also working on new techniques for laser material processing and medical applications. Among other projects, the University of Applied Sciences HTW Berlin is working on laser applications in the development of thin-film solar cells and laser material processing. The Institute for Machine Tools and Factory Operations (IWF) at TU Berlin focuses its research and teaching on the technology and management of industrial factory operations. This includes the development of process technologies and production plants as well as IT modelling. Scientists are working on the “digital factory” on an interdisciplinary basis in six different chairs. One of IWF’s areas of expertise is joining technology, where the main focus is on joining by fusion welding. This includes several projects laying the foundations for applied laser technology. werkzeugmaschinen_und_fabrikbetrieb Together with the Fraunhofer Institute for Production Systems and Design Technology IPK, they form the Production Technology Center PTZ Berlin, where scientists engage in both theoretical research in production processes and industry-oriented applied research. Since 1986, the dual TU/Fraunhofer-Gesellschaft institute has operated a large glazed, column-free experimental hall surrounded by a semicircular building with offices, workshops, and laboratories. In the buildings on the banks of the river Spree, the institutes which have been linked by a cooperation agreement since 1979, work on questions related to the research and optimization of industrial production processes. IPK is closely linked to IWF and joint appointments on issues relating to the industrial implementation of new processes are common. The researchers at the IPK are looking for ways to process brittle-hard and other difficult-to-machine materials as well as surface structuring methods and methods for manufacturing complex geometries. They use laser powder welding, laser beam, and hybrid welding processes in this work. The Federal Institute for Materials Research and Testing Bundesanstalt für Materialforschung und -prüfung (BAM) is investigating methods for joining thick-walled components with laser and laser-arc hybrid welding processes reliably and productively. The focus is on joining different grades of steel. Laser material processing in use Many companies are finding ways to apply laser technology. On the one hand, the region is home to several prominent suppliers of laser technology with an international reputation and a broad product range. On the other hand, many metal processing companies are also settling in Berlin Brandenburg to make use of laser technology in order to offer innovative products. A good example of a world-renowned laser supplier in the region is the production facility of Newport Spectra-Physics GmbH in Stahnsdorf. The company dates back to the company LAS GmbH. Today the company belongs to the American group MKS Instruments. In the field of photonics, it develops and makes very compact, active Q-switched lasers in the infrared, green and UV wavelength ranges. Europarc Dreilinden in Kleinmachnow is home to HIGHYAG Lasertechnologie GmbH (a subsidiary of II-VI Inc.), which is another of the world’s leading brands of laser-based material processing tools. The company offers processing heads for welding, soldering, cutting, coating, and drilling as well as beam transmission systems and adjustments. Adlershof-based II-VI Directphotonics GmbH now belongs to the same group. This company develops and manufactures direct diode laser systems for material processing.

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