Institut für Strahlwerkzeuge

The Institut für Strahlwerkzeuge (IFSW) of the University of Stuttgart, founded in 1986, is reputed as one of the leading laser research centres worldwide. Its strength is based on a holistic research approach covering every aspect from laser sources to their applications and ranging from fundamental investigations to industrial technology transfer. The main activities at the IFSW are currently concerned with selected topics in the fields of laser beam sources (especially the thin-disk laser), optical elements and components for beam delivery and beam shaping as well as fundamental investigations on the light-matter interaction with the subsequent process development of macro and micro applications for industrial manufacturing.

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11 to 19 of 19 Results

Data for: "Influence of beam parameters on the capillary formation in partial and full penetration in high speed laser beam welding of metals" 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
Supplementary Data for Paper "On Friction, Heat Input and Material Flow Initiation During Friction Stir Welding: Tool and Process Optimization" Jan 26, 2023 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...
Python implementation of heat accumulation equations for additive manufacturing 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...
10 kHz x-ray video of laser beam welding of copper May 13, 2022 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...
Infrared imaging of laser based direct energy deposition of AlMg5 wire Jan 3, 2022 Hagenlocher, Christian; Boley, Steffen, 2022, "Infrared imaging of laser based direct energy deposition of AlMg5 wire", https://doi.org/10.18419/DARUS-2242, DaRUS, V1, UNF:6:hJjhqJEMD0Y6k8xQqETXMw== [fileUNF] The data shows temperature fields, which were recorded during laser-based direct energy deposition of AlMg5 wires by means of infrared imaging. All captured temperature fields are given as sequences of csv data. Each frame of the acquired image sequences is represented by its individual csv table, with its corresponding frame number. Three exemplar...
Replication Data for: Numerical Analysis of the Local Solidification Conditions in Laser Beam Welding of Aluminum Alloys Sep 16, 2021 Wagner, Jonas; Hagenlocher, Christian; Fetzer, Florian; Böhm, Constantin; Weber, Rudolf; Weihe, Stefan; Graf, Thomas, 2021, "Replication Data for: Numerical Analysis of the Local Solidification Conditions in Laser Beam Welding of Aluminum Alloys", https://doi.org/10.18419/DARUS-2106, DaRUS, V1 The here published experimental data was done in a collaborative DFG project between IFSW and MPA (project number 398552773). The published data is replication data for a publication. The data show high-speed videos of full-penetration laser beam welding of the aluminum alloy EN AW-6016 at different feed rates. Furthermore a method for the extracti...
Comparison of heat conduction mode and deep penetration mode by means of high-speed synchrotron X-ray videos during laser beam welding Aug 31, 2021 Hagenlocher, Christian; Lind, Jannik; Wagner, Jonas; Hummel, Marc; Olowinsky, Alexander; Weber, Rudolf; Graf, Thomas, 2021, "Comparison of heat conduction mode and deep penetration mode by means of high-speed synchrotron X-ray videos during laser beam welding", https://doi.org/10.18419/DARUS-2078, DaRUS, V2 There are two modes of laser beam welding: the heat conduction mode and the full penetration mode. The heat conduction mode is present if the intensity of the laser beam is to low to evaporate but sufficient to melt the irradiated material. This welding mode results in a very stable process without pore formation but with low welding depths. The st...
Replication Data for: Analytical Description of the Criterion for the Columnar-To-Equiaxed Transition During Laser Beam Welding of Aluminum Alloys Aug 5, 2021 - Joining Technology and Additive Manufacturing Böhm, Constantin; Hagenlocher, Christian; Wagner, Jonas; Graf, Thomas; Weihe, Stefan, 2021, "Replication Data for: Analytical Description of the Criterion for the Columnar-To-Equiaxed Transition During Laser Beam Welding of Aluminum Alloys", https://doi.org/10.18419/DARUS-2075, DaRUS, V1 The here published experimental data was done in a collaborative DFG project between IFSW and MPA (project number 398552773). The published data is repilcation data for a publication. In this project laser beam weld trials were conducted and the resulting weld seams were prepared metallographically. The here presented data is a set of optical micro...
High-speed synchrotron X-ray video of the laser beam cutting process in a 2 mm thick sheet of aluminium Jun 15, 2021 Lind, Jannik; Hagenlocher, Christian; Blazquez-Sanchez, David; Hummel, Marc; Olowinsky, Alexander; Weber, Rudolf; Graf, Thomas, 2021, "High-speed synchrotron X-ray video of the laser beam cutting process in a 2 mm thick sheet of aluminium", https://doi.org/10.18419/DARUS-1824, DaRUS, V1 The generation of low surface roughness of the cut edge during laser beam cutting is a challenge. The striation pattern, which determines the surface roughness, can be distinguished into regular and interrupted striations, the latter resulting in an increased surface roughness. In order to analyse their formation, the space- and time-resolved cutti...

Data for: "Influence of beam parameters on the capillary formation in partial and full penetration in high speed laser beam welding of metals"

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

Supplementary Data for Paper "On Friction, Heat Input and Material Flow Initiation During Friction Stir Welding: Tool and Process Optimization"

Jan 26, 2023

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...

Python implementation of heat accumulation equations for additive manufacturing

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...

10 kHz x-ray video of laser beam welding of copper

May 13, 2022

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...

Infrared imaging of laser based direct energy deposition of AlMg5 wire

Jan 3, 2022

Hagenlocher, Christian; Boley, Steffen, 2022, "Infrared imaging of laser based direct energy deposition of AlMg5 wire", https://doi.org/10.18419/DARUS-2242, DaRUS, V1, UNF:6:hJjhqJEMD0Y6k8xQqETXMw== [fileUNF]

The data shows temperature fields, which were recorded during laser-based direct energy deposition of AlMg5 wires by means of infrared imaging. All captured temperature fields are given as sequences of csv data. Each frame of the acquired image sequences is represented by its individual csv table, with its corresponding frame number. Three exemplar...

Replication Data for: Numerical Analysis of the Local Solidification Conditions in Laser Beam Welding of Aluminum Alloys

Sep 16, 2021

Wagner, Jonas; Hagenlocher, Christian; Fetzer, Florian; Böhm, Constantin; Weber, Rudolf; Weihe, Stefan; Graf, Thomas, 2021, "Replication Data for: Numerical Analysis of the Local Solidification Conditions in Laser Beam Welding of Aluminum Alloys", https://doi.org/10.18419/DARUS-2106, DaRUS, V1

The here published experimental data was done in a collaborative DFG project between IFSW and MPA (project number 398552773). The published data is replication data for a publication. The data show high-speed videos of full-penetration laser beam welding of the aluminum alloy EN AW-6016 at different feed rates. Furthermore a method for the extracti...

Comparison of heat conduction mode and deep penetration mode by means of high-speed synchrotron X-ray videos during laser beam welding

Aug 31, 2021

Hagenlocher, Christian; Lind, Jannik; Wagner, Jonas; Hummel, Marc; Olowinsky, Alexander; Weber, Rudolf; Graf, Thomas, 2021, "Comparison of heat conduction mode and deep penetration mode by means of high-speed synchrotron X-ray videos during laser beam welding", https://doi.org/10.18419/DARUS-2078, DaRUS, V2

There are two modes of laser beam welding: the heat conduction mode and the full penetration mode. The heat conduction mode is present if the intensity of the laser beam is to low to evaporate but sufficient to melt the irradiated material. This welding mode results in a very stable process without pore formation but with low welding depths. The st...

Replication Data for: Analytical Description of the Criterion for the Columnar-To-Equiaxed Transition During Laser Beam Welding of Aluminum Alloys

Aug 5, 2021 - Joining Technology and Additive Manufacturing

Böhm, Constantin; Hagenlocher, Christian; Wagner, Jonas; Graf, Thomas; Weihe, Stefan, 2021, "Replication Data for: Analytical Description of the Criterion for the Columnar-To-Equiaxed Transition During Laser Beam Welding of Aluminum Alloys", https://doi.org/10.18419/DARUS-2075, DaRUS, V1

The here published experimental data was done in a collaborative DFG project between IFSW and MPA (project number 398552773). The published data is repilcation data for a publication. In this project laser beam weld trials were conducted and the resulting weld seams were prepared metallographically. The here presented data is a set of optical micro...

High-speed synchrotron X-ray video of the laser beam cutting process in a 2 mm thick sheet of aluminium

Jun 15, 2021

Lind, Jannik; Hagenlocher, Christian; Blazquez-Sanchez, David; Hummel, Marc; Olowinsky, Alexander; Weber, Rudolf; Graf, Thomas, 2021, "High-speed synchrotron X-ray video of the laser beam cutting process in a 2 mm thick sheet of aluminium", https://doi.org/10.18419/DARUS-1824, DaRUS, V1

The generation of low surface roughness of the cut edge during laser beam cutting is a challenge. The striation pattern, which determines the surface roughness, can be distinguished into regular and interrupted striations, the latter resulting in an increased surface roughness. In order to analyse their formation, the space- and time-resolved cutti...

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