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Synchrotron Radiation for Improved Laser Processes

Author
Mathias Keiber
1:30 min reading time

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Researchers use synchrotron radiation to visualize industrial laser processes – for more efficient production, new materials, and shorter development cycles.

Experimental setup for performing phase contrast videography at beamline P61A at DESY Petra III.


RWTH Aachen – Lehrstuhl für Lasertechnik

Researchers at the Fraunhofer Institute for Laser Technology ILT and the Chair of Laser Technology at RWTH Aachen University want to sustainably improve the quality of laser processes such as welding, drilling, and cutting. To this end, they are investigating industrial laser processes at the German Electron Synchrotron (DESY) in Hamburg using synchrotron radiation. For the first time, the formation of vapor capillaries, melt movements, and defects are being visualized in high resolution and in real time.

The research team conducts up to 700 test series within a week. High-speed cameras with rates of up to 50,000 frames per second and special optical systems enable resolution in the micro and nanometer range. Initial results have shown that targeted adjustment of the laser settings can reduce stress cracks, decrease pore formation, and increase electrical conductivity, according to Fraunhofer ILT.

Classic and Complex Connections

The investigations cover both classic metal joints and complex material combinations such as copper-aluminum or aluminum-titanium, which are used in electric mobility and aviation, among other areas. Laser powder welding of nickel-based superalloys and the processing of ultra-thin copper structures for microelectronics are also being analyzed.

A key component of the research work is the evaluation of the extensive measurement data: up to 50 TB is generated per week. Special software solutions are used to process the data and convert it into usable information. In addition to optimizing existing processes, the findings are expected to open up new possibilities for the development of customized materials. Companies such as Audi, Bosch Research, and Denso are already using the results to increase efficiency and shorten development cycles.

This is a partly automated translation of this german article.

Background information for this content

A Beginner’s Guide to Synchrotron Radiation and X-Ray Lasers

For the new user of a beamline, details such as its beam focus sizes and fluxes onto the sample will be of keen interest. Likewise, instrument scientists are keen to document their evidence for their beamlines’ performances.

Utilizing Synchrotron Radiation for Phase Identification in Mg Alloys

The property profile of modern alloys is determined by their microstructureMicrostructure, based on the chemical composition; the morphologyMorphologies, distribution and quantity of the phases; and the process history of the material. Melting …

Recent advances in electrolytic cells for synchrotron radiation characterization of electrocatalytic CO2 reduction

  • Review Article

Carbon dioxide, as a greenhouse gas, is expected to be converted into other useful substances by the electrocatalytic CO2 reduction reaction (CO2RR) technology. The electrocatalytic cell, or electrochemical cell, used to provide the experimental …

Data Analysis of Molecular Dications Fragmentation Processes by Double Photoionization with Synchrotron Radiation

In this paper is presented a summarizing description of the collection and computational analysis of the relevant data recorded following a double photoionization experiment on molecular species of interest in astrochemistry. In particular, the …

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    DESY/© RWTH Aachen – Lehrstuhl für Lasertechnik, in-adhesives, MKVS, Ecoclean/© Ecoclean, Hellmich GmbH/© Hellmich GmbH, Krahn Ceramics/© Krahn Ceramics, Kisling AG/© Kisling AG, ECHTERHAGE HOLDING GMBH&CO.KG - VSE, Schenker Hydraulik AG/© Schenker Hydraulik AG