Depth progress of ultrafast laser drilling measured by means of X-ray synchrotron imaging

Version 1.0
Depth progress of ultrafast laser drilling measured by means of X-ray synchrotron imaging
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
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Description
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 of a single laser drilling process. The video frames are taken from the video at a progress of the drilling depth of about every 50 µm.
The vertical size of the yellow rectangle in each video frame represents the manually determined drilling depth 'z_tip'. A detailed description can be found in the related publication. The dataset also includes a complementary set of tables (csv files). In each table a column contains corresponding the time stamps to each video frame in seconds and the drilling depth in µm.
The relation between frame number and timestamp, and the relation between the size of the yellow rectanngle and the depth in Micrometer is described in the diagram pdf file. (2024-11-03)
Subject Engineering
Keyword Laser Drilling, High-Speed Synchrotron X-Ray Imaging, Drilling Progress, Depth Measurement, Stainless Steel
Related Publication Is Referenced By: Measuring the progress of laser drilling by means of OCT and validation using X-ray synchrotron imagingdoi: tbp
Notes Setup was collaboratively developed with the RWTH in Aachen, Germany.
We acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at PETRA III and we would like to thank Felix Beckmann for assistance in using P07. Beam time was allocated for proposal BAG-20211050 "Fundamental quantification of temporal and spatial process influencing characteristics in laser-based melt processes for metals".
Providing the Carbide Laser for the experiments by Light Conversion is highly acknowledged.
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