1 to 10 of 15 Results
Jun 6, 2025
Wahl, Johannes, 2025, "Supplementary Data for Paper "Laser-plume interactions in deep-penetration remote laser welding of stainless steel"", https://doi.org/10.18419/DARUS-3984, DaRUS, V1, UNF:6:Fn8NYlFBDL5XZRiGrDRSFg== [fileUNF]
This repository is related to the paper "Laser-plume interactions in deep-penetration remote laser welding of stainless steel" published in the Journal of Optics and Laser Technology. The repository contains a video of the high-speed Schlieren imaging of the vapour plume, as well as the videos of the emission of the vapour plume with different filt... |
May 23, 2025
Henn, Manuel; Buser, Matthias; Holder, Daniel; Hagenlocher, Christian; Onuseit, Volkher; Powell, John; Graf, Thomas, 2025, "Video Demonstration of the Combination of Additive and Subtractive Laser Processing for Manufacturing of Small Holes and Narrow Grooves", https://doi.org/10.18419/DARUS-4575, DaRUS, V1
This video illustrates a novel approach combining additive and subtractive laser processes at the layer level (AddSub). This quasi-simultaneous manufacturing process enables the fabrication of small structures with high aspect ratios, including narrow grooves below 50 µm in width. The technique demonstrates significant potential for applications in... |
May 23, 2025
Henn, Manuel; Buser, Matthias; Holder, Daniel; Hagenlocher, Christian; Onuseit, Volkher; Powell, John; Graf, Thomas, 2025, "Rotating CT-Scan Visualization of Hollow Structures Produced by the Combination of Additive and Subtractive Laser Processing", https://doi.org/10.18419/DARUS-4572, DaRUS, V1
This animation provides a rotational visualization of the CT-scan of a part manufactured using the combination of additive and subtractive laser processing. The color bar on the left indicates the width or diameter of the hollow structures. |
Buser, Matthias; Henn, Manuel; Schneller, Lukas; Hummel, Marc; Beckmann, Felix; Hagenlocher, Christian; Graf, Thomas, 2025, "Depth progress of ultrafast laser drilling measured by means of X-ray synchrotron imaging", https://doi.org/10.18419/DARUS-4561, DaRUS, V1
This dataset contains sets of video frames taken from synchrotron x-ray videos of laser drilling with an ultrafast laser in 1.4301 stainless steel. The x-ray videos show the crossectional distribution of material density and thickness in the plane of the borehole axis. Each set is packaged in a multipage tiff file and contains selected video frames... |
Schneller, Lukas; Henn, Manuel; Buser, Matthias, 2024, "Setup for High-Speed Synchrotron X-Ray Imaging of Laser Drilling at the DESY", https://doi.org/10.18419/DARUS-4348, DaRUS, V1
The image shows the High-Speed Synchrotron X-Ray Imaging setup at the Deutsches Elektronen Synchrotron (DESY) in Hamburg. It is used to capture X-ray imaging sequences of a laser drilling process with an ultrafast Yb:YAG laser with an output wavelength of 1030 nm. The polarization could be adjusted by two λ/4 and λ/2 waveplates which were placed be... |
Jun 4, 2024
Wagner, Jonas; Hagenlocher, Christian; Weber, Rudolf; Hummel, Marc; Beckmann, Felix; Moosmann, Julian; Graf, Thomas, 2024, "Synchrotron X-ray video of full-penetration laser welding of aluminum AA1050A", https://doi.org/10.18419/DARUS-3860, DaRUS, V1
The video shows a synchrotron x-ray video of full-penetration laser welding of the aluminum alloy AA1050A (Al99.5). At the beginning of the video the transition from partial penetration welding with a keyhole which is closed at its bottom to full-penetration welding with a keyhole which is opened at its bottom can be observed. The images show that... |
Jun 4, 2024
Hinterkopf, Christoph, 2024, "Data for: "Influence of beam parameters on the capillary formation in partial and full penetration in high speed laser beam welding of metals"", https://doi.org/10.18419/DARUS-2111, DaRUS, V1
In this experiment copper and aluminum were partially and fully penetrated at high speed with a laser beam. The structure as well as the depth of the capillary were filmed with an X-Ray machine. The video footage were used to reconstruct and later ray traced to analyse the thermal efficiency |
Hoßfeld, Max, 2023, "Supplementary Data for Paper "On Friction, Heat Input and Material Flow Initiation During Friction Stir Welding: Tool and Process Optimization"", https://doi.org/10.18419/DARUS-3315, DaRUS, V1
This repository is related to the publication "On Friction, Heat Input and Material Flow Initiation During Friction Stir Welding: Tool and Process Optimization" (JMMP). The repository contains an example video, an overview of the experimental setup and additional diagrams for the friction experiments. Moreover, surface pictures of the friction expe... |
Nov 7, 2022
Hagenlocher, Christian, 2022, "Python implementation of heat accumulation equations for additive manufacturing", https://doi.org/10.18419/DARUS-2609, DaRUS, V1
This is a python implementation of the heat accumulation equations, which describe the increase of the residual temperature in additive manufacturing. The Derivation of the equations is described in the related paper given below. If you run the script in the console, it creates two text-files and four plots in .png format. Process parameter and mat... |
Faure, Frauke; Hagenlocher, Christian; Lind, Jannik; Wagner, Jonas; Weber, Rudolf; Graf, Thomas, 2022, "10 kHz x-ray video of laser beam welding of copper", https://doi.org/10.18419/DARUS-2086, DaRUS, V1
At the X-ray facility at the IFSW, so far it has been possible to record videos with a framerate of 1 kHz to 3 kHz. In this setup the X-rays propagate through the workpiece and are filmed by the high-speed camera via a projection on the scintilator. Through a new sample formation and using less attenuating sample material, frame rates of 10 kHz cou... |
