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17 results for “laser welding”
Photonics4All Bookmark Laser Welding (German)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> Do you know how the metal pieces of your car have been welded?<br> <br> Nails and rivets are long gone! Today we use lasers to join multiple pieces of metal with different types of surfaces - curved or straight. Using lasers to cut and weld is cheaper, safer and faster than older techniques and lasers can be easily controlled by robots for high accuracy and high throughput.<br> New powerful lasers can also be used to cut different materials such as plastics, ceramics and metals. The emergence of new types of lasers made it possible.<br> All thanks to the progress in Photonics!</p>
Photonics4All Bookmark Laser Welding (Swedish)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> Do you know how the metal pieces of your car have been welded?<br> <br> Nails and rivets are long gone! Today we use lasers to join multiple pieces of metal with different types of surfaces - curved or straight. Using lasers to cut and weld is cheaper, safer and faster than older techniques and lasers can be easily controlled by robots for high accuracy and high throughput. New powerful lasers can also be used to cut different materials such as plastics, ceramics and metals. The emergence of new types of lasers made it possible.<br> All thanks to the progress in Photonics!</p>
Photonics4All Bookmark Laser Welding (French)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> Do you know how the metal pieces of your car have been welded?<br> <br> Nails and rivets are long gone! Today we use lasers to join multiple pieces of metal with different types of surfaces - curved or straight. Using lasers to cut and weld is cheaper, safer and faster than older techniques and lasers can be easily controlled by robots for high accuracy and high throughput.<br> New powerful lasers can also be used to cut different materials such as plastics, ceramics and metals. The emergence of new types of lasers made it possible.<br> All thanks to the progress in Photonics!</p>
Photonics4All Bookmark Laser Welding (English)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> Do you know how the metal pieces of your car have been welded?<br> <br> Nails and rivets are long gone! Today we use lasers to join multiple pieces of metal with different types of surfaces - curved or straight. Using lasers to cut and weld is cheaper, safer and faster than older techniques and lasers can be easily controlled by robots for high accuracy and high throughput.<br> New powerful lasers can also be used to cut different materials such as plastics, ceramics and metals. The emergence of new types of lasers made it possible.<br> All thanks to the progress in Photonics!</p> <p> </p>
Laser welding multispectral coaxial monitoring
<p>This is the first dataset containing thermopgraphy data of some single laser welding trials as they were observed by coaxial integrated NIR and S/MWIR cameras and different IR filters.</p>
Videographic Data for Pore Formation and Melt Pool Analysis of Laser Welded Al-Cu Joints using Synchrotron Radiation
<p>The published data include video recordings of synchrotron radiation during a laser beam welding process in aluminium-copper joints. The recordings show the phase boundaries of the materials and are suitable for an analysis with regard to material mixing and pore formation. The experiments were conducted with the high energy beamline P07 (EH4) of Petra 3 at Deutsches Elektronen Synchrotron DESY in Hamburg, Germany.</p> <p>General parameters:</p> <p>Photon energy of synchrotron beam: 37,7 keV<br> Scintillator material: CdWO4<br> Frame rate: 1000 Hz</p> <p>Specific parameters used for videos:</p> <p>HV185: Cu-ETP (top) to Al99.5 (bottom); wavelengths of laser beam source: 1030 nm; laser beam diameter: 117 µm; laser power: 1000 W; feed rate: 50 mm/s<br> HV186: Cu-ETP (top) to Al99.5 (bottom); wavelengths of laser beam source: 1030 nm; laser beam diameter: 117 µm; laser power: 1500 W; feed rate: 100 mm/s<br> HV192: Al99.5 (top) to CuSn6 (bottom); wavelengths of laser beam source: 1070 nm; laser beam diameter: 34 µm; laser power: 750 W; feed rate: 50 mm/s<br> HV196: Cu-ETP (top) to Al99.5 (bottom); wavelengths of laser beam source: 1070 nm; laser beam diameter: 34 µm; laser power: 750 W; feed rate: 50 mm/s</p>
Using photodiodes and supervised Machine Learning for automatic classification of weld defects in laser welding of thin foils copper-to-steel battery tabs
<p>In this folder, excel files are stored with the results of signal processing that supported findings in the following paper:</p> <p>"Using photodiodes and supervised Machine Learning for automatic classification of weld defects in laser welding of thin foils copper-to-steell battery tabs".</p> <p>Matlab scripts and orginal signals will be uploaded soon with more detailed description.</p> <p> </p>
Role of laser wobbling welding parameters in dissimilar welding of aluminum and copper alloys: general preliminary process window.
<p>This database explores a wide range of process parameters concerning laser welding of aluminum and copper 0.3 mm thick foils in lap configuration. In particular, this application involves wobbling technique as a dynamic beam shaping for enhancing the formation of a correct interface width in this kind of welding. Given different values of laser power, wobbling tangential speed and wobbling diameter, the results are expressed in terms of weld bead width at the face of the weld bead, weld bead width at the interface between the two sheets and bead penetration depth in the lower sheet. Some trials gave an excessive penetration so that the specimen was cut in two separate parts after the process. This specific type of dissimilar welding is useful for enhancing "hybrid" characteristics of components, where a trade-off between mechanical and electrical or thermal characteristics is needed.</p>
EBSD datasets for low-alloy steel weld metals - Arc, Laser, and Laser-hybrid welding
<p>Example open access datasets for low-alloy structural steel weld metals, previously published in ref. [1]. The datasets are also related to the International Institute of Welding Commission C-IX, document nr. IX-L-1239-2021.</p> <p>Files included:</p> <ul> <li>The nomenclature of the files corresponds to what is used in ref. [1].</li> <li>CV_3.crc/cpr: Conventional arc weld, 3/5 mm t-joint</li> <li>HY_1.crc/cpr: Laser-hybrid weld, 3mm butt-joint</li> <li>LA_1.crc/cpr: Laser weld, 3mm butt-joint</li> </ul> <p>The methodology for analysing grain size and dislocation sub-structures is found at: <a href="../record/5053377">https://zenodo.org/record/5053377</a> and <a href="https://doi.org/10.5281/zenodo.4430623">https://doi.org/10.5281/zenodo.4430623</a></p> <p>For further information visit: Aalto University Wiki - <a href="https://wiki.aalto.fi/display/GSMUM">https://wiki.aalto.fi/display/GSMUM</a> and <a href="https://wiki.aalto.fi/display/EMDIDS">https://wiki.aalto.fi/display/EMDIDS</a></p> <p><strong>Refererences:</strong></p> <ul> <li>[1] Materials Science and Engineering: A, 2014; 592: 28-39, <a href="http://dx.doi.org/10.1016/j.msea.2013.10.094">http://dx.doi.org/10.1016/j.msea.2013.10.094</a></li> <li>[2] Welding in the World. 2016; 60: 673-678. <a href="http://dx.doi.org/10.1007/s40194-016-0318-8">http://dx.doi.org/10.1007/s40194-016-0318-8</a></li> <li>[3] Ultramicroscopy 2021, Volume 222, <a href="https://doi.org/10.1016/j.ultramic.2021.113203">https://doi.org/10.1016/j.ultramic.2021.113203</a></li> </ul>
Preparation of orthodontic arch wire by laser welding of Ti/TiNi dissimilar alloys
<p>TiNi shape memory alloy has good biocompatibility and superelasticity on the basis of certain strength and stiffness. In<br> the process of tooth correction, stainless steel of composite orthodontic arch wire is used as the support of supporting<br> teeth. TiNi alloy of composite orthodontic arch wire is used to correct the dislocation teeth. Compared with the traditional<br> stainless steel arch wire, composite orthodontic arch wire can reduce the pain of patients. In this experiment, laser welding<br> was carried out by filling Cu filler metal. Laser centering welding and laser offsetting welding were used respectively, and<br> the joint strength was compared. It was found that laser offsetting welding can effectively reduce the content of interface<br> intermetallic compounds and improve the joint strength.</p>
Characterization of photodiodes for detection of variations in part-to-part gap and weld penetration depth during remote laser welding of copper-to-steel battery tab connectors
<p>In this folder, .csv files and Matlab scripts for processing data from experimental campaign that has been reported in the following paper:<br> Chianese, G., Franciosa, P., Nolte, J., Ceglarek, D., and Patalano, S., “Characterization of photodiodes for detection of variations in part-to-part gap and weld penetration depth during remote laser welding of copper-to-steel battery tab connectors.” Journal of Manufacturing Science and Engineering. In-press.</p> <p>As the experimental campaign is made up of two phases, files are divided in two folders:<br> (i) Phase I - Weld penetration depth; and,<br> (ii) Phase II - Part-to-part gap.</p> <p>In each of these two folders, there are:<br> (i) a Matlab live script that, once the code is run, allows the user to select the signals (please, select all of them);<br> (ii) functions to run the code;<br> (iii) Matlab variable files;<br> (iii) a folder with .csv files that contain signals recorded during experimental campaign;<br> (iv) an Excel file reporting experimental setup and process parameters;<br> (v) a PDF file with the live script and results of the data processing for the readers that cannot run Matlab codes.</p>
Full field deformation data: Laser welded Eurofer-97
<p>Tensile deformation data at room temperature for an autogenous laser weld in Eurofer-97.</p> <p>Specimens are with and without a laser weld, with and without a post-weld heat treatment.</p> <p>Deformation is full field and takes the form of x, y, z coordinates and dx, dy, dz displacements.</p> <p>Virtual extensometry is extracted from the data.</p> <p>Example Jupyter notebook provided.</p> <p> </p>
Laser welding IR data for ML
<p> </p> <p>HDF5 datasets of laser welding processes using different laser power and robot speed configurations.</p> <p>- excel sheet protocol </p> <p>- 500Hz aquisition rate</p> <p>- coaxial view</p> <p>- wavelength: 1750 +-250</p> <p> </p>
Laser Tissue Welding - Distal Pancreatectomy Sealing Study
ClinicalTrials.gov study NCT03147768. IPD Sharing: NO. Countries: 1. Publications: 4.
First-in-Human Safety Study Of Laser Tissue Welding For Surtureless Laparoscopic Partial Nephrectomy
ClinicalTrials.gov study NCT02061605. IPD Sharing: NO. Countries: 1. Publications: 0.
IR monitoring of battery laser welding
<p>This dataset includes data from two experimental campaigns carried out in the context of the ZELD-e project [https://zeld-e.eu/] during 2021 & 2022. Each experimental campaign includes data from a high-speed IR camera which monitors the welding of Al & Cu battery pouch-cell tabs and the corresponding measurements of the joints' electrical contact resistance and mechanical strength (tensile shear tests). This work was partially supported by EIT Manufacturing and co-funded by the EU, through project ZELD-e.</p><p> </p><p>For purchasing and downloading the dataset, please contact Prof. Stavropoulos: pstavr@lms.mech.upatras.gr</p>
Laser welding multispectral coaxial monitoring - raw data
<p>Raw data (.dat) containing thermopgraphy data of some single laser welding trials as they were observed by coaxial integrated NIR and S/MWIR cameras and different IR filters.</p>
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International Brain Laboratory public data
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OpenNeuro
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