<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>6279</id>
    <completedYear/>
    <publishedYear>2023</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>10</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>Wissenschaftliche Gesellschaft Lasertechnik und Photonik e.V. (WLT)</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Automated weld seam evaluation and 2D simulation parameter calibration for absorber-free laser transmission welding</title>
    <abstract language="eng">Absorber-free laser transmission welding enables clean and precise joining of plastics without additives or adhesives. It is therefore well suited to produce optical and medical devices, which place high demands on cleanliness and accuracy.&#13;
However, the weld usually has an undesirably large vertical expansion, causing bulges and distortion. To improve this, the intensity distribution of the laser beam as well as the processing strategy must be adapted. Due to the complexity, this is aided by process simulation. However, simulation parameter calibration and verification are usually done considering the seam width and height, which is of limited significance. To overcome this, we propose a new method for image processing of microtome sections, determining the spatially resolved geometry of the weld. Thus, the deviation between experiment and simulation can be calculated pixel by pixel. This spatially resolved value is predestined for the calibration of the simulation parameters: For a parameter field with 18 different settings, the total deviation between experiment and simulation is less than 11 % after calibration.</abstract>
    <parentTitle language="eng">Lasers in Manufacturing Conference (LIM 2023), 26. Juni bis 29. Juni 2023, München</parentTitle>
    <identifier type="url">https://www.wlt.de/sites/default/files/2023-09/Contribution_122.pdf</identifier>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Frederik Maiwald</author>
    <author>Johannes Tröger</author>
    <author>Stefan Hierl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>plastics welding</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>image processing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>simulation</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>optimization</value>
    </subject>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>8308</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferencepresentation</type>
    <publisherName>Wissenschaftliche Gesellschaft Lasertechnik und Photonik e.V.</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Enhancing Layer Adhesion in Material Extrusion AM with Adaptive Laser Preheating Integrated in Printhead</title>
    <abstract language="eng">Material extrusion is a widely used AM process and is gaining more acceptance in industry applications due to its material variety, flexibility, and low cost. However, its usage is limited by a process-related anisotropy caused by insufficient interlayer bonding due to reduced temperature in the process zone. To enhance layer adhesion, an adaptive laser preheating system is integrated in a conventional printhead around the extrusion nozzle. The setup with eight fiber coupled diode laser allows preheating in feed direction and investigation of various intensity profiles. The article describes the experimental setup and significant improvements achieved. Laser preheating with different intensity distributions (spot, sickle or ring shaped) show an incasement of up to 85 % of the mechanical properties in the build-up direction. However, due to the additional energy input by the laser, controlled cooling of the workpiece becomes a crucial factor and is investigated as well.</abstract>
    <parentTitle language="deu">LiM Conference 2025, Lasers in Manufacturing, June 23 - 26, 2025, Munich, Germany</parentTitle>
    <identifier type="url">https://www.wlt.de/lim-conference</identifier>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Dennis Meisner</author>
    <author>Nikitas Kaftiranis</author>
    <author>Frederik Maiwald</author>
    <author>Petra Rapp</author>
    <author>Stefan Hierl</author>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>819</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>8</pageFirst>
    <pageLast>13</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume>Vol. 16</volume>
    <type>article</type>
    <publisherName>Japan Laser Processing Society</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-01-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Online pyrometry for weld seam localization in absorber-free laser transmission welding of transparent polymers</title>
    <abstract language="eng">Production of optical and medical devices makes high demands on cleanliness, precision, visual appearance and reliability. Advantages  of laser transmission welding – contactless input of energy, high  precision, no adhesives and no particle formation – can be fully  exploited for this use. For absorber-free welding, lasers emitting in the polymers’ intrinsic absorption spectrum between 1.6 μm and 2 μm are used. Focusing the laser beam with high NA provides large intensity gradients inside the specimen and enables selective fusing of the joining zone without affecting the surface. Since a molten  upper surface leads to visible and palpable irregularities and  causes warpage, the verticalexpansion of the weld seam is crucial. To meet the high quality and reliability required in the medical and optical  industry, online monitoring of the seam is necessary. The aim of  this  work is the localization and evaluation of the weld seam using pyrometry. First, the emitted thermal radiation is computed, enabling signal analysis regarding origin and spectrum. Thus, assessment of measurement spectrum and forecast of the signal in dependence on seam  shape and position is possible. Finally, welding tests with Topas 8007-04 are performed at 200 mm/s feed rate and monitored with 100 kHz. The comparison of tracked data with thin-cuts demonstrates that weld seam localization by pyrometry is possible, enabling online assessment of the process.</abstract>
    <parentTitle language="eng">Journal of Laser Micro/Nanoengineering</parentTitle>
    <identifier type="doi">10.2961/jlmn.2021.01.2002</identifier>
    <identifier type="issn">1880-0688</identifier>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <author>Frederik Maiwald</author>
    <author>Stephan Englmaier</author>
    <author>Stefan Hierl</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserdurchstrahlschweissen</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Kunststoff</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Transparenz</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Schweißnaht</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Wärmestrahlung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Pyrometrie</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Prozessüberwachung</value>
    </subject>
    <collection role="ddc" number="670">Industrielle Fertigung</collection>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="oaweg" number="">Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>827</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName>Japan Laser Processing Society</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-01-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Online pyrometry for weld seam localization in absorber-free laser transmission welding of transparent polymers</title>
    <abstract language="eng">Optical and medical devices made of transparent polymers are gaining popularity because of its cost advantages. The manufacturing technology must be able to meet the high demands of these applications. Advantages of laser transmission welding – contactless input of energy, precision, no adhesives and no particle formation – can be exploited here. For absorber-free welding, lasers emitting in the polymers‘ intrinsic absorption spectrum are used. Focusing the laser beam with high NA enables selective fusing of the joining zone. Since a molten upper surface leads to visible and palpable irregularities, the lateral expansion of the weld seam is monitored in this work. Welding tests with 1 mm thick plates of COC are performed and monitored by pyrometry. Distances between seam and surface measured in thin cuts and are compared with the pyrometer signal. This shows that the localization of the weld seam is possible and proper and faulty parts can be distinguished by pyrometry.</abstract>
    <parentTitle language="deu">21st International Symposium on Laser Precision Microfabrication: Dresden, 26.06.2020</parentTitle>
    <identifier type="url">http://www.jlps.gr.jp/en/proc/lpm/20/073.pdf</identifier>
    <enrichment key="opus.source">publish</enrichment>
    <author>Frederik Maiwald</author>
    <author>Stephan Englmaier</author>
    <author>Stefan Hierl</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserdurchstrahlschweissen</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Kunststoff</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Transparenz</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Schweißnaht</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Wärmestrahlung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Pyrometrie</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Prozessüberwachung</value>
    </subject>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>822</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst>22</pageFirst>
    <pageLast>25</pageLast>
    <pageNumber/>
    <edition/>
    <issue>52</issue>
    <volume/>
    <type>article</type>
    <publisherName>AT-Fachverl.</publisherName>
    <publisherPlace>Fellbach</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-01-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Pyrometerbasierte Prozessüberwachung beim Laserkunststoffschweißen</title>
    <parentTitle language="deu">Photonik</parentTitle>
    <enrichment key="opus.source">publish</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Frederik Maiwald</author>
    <author>Stefan Hierl</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschweissen</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Kunststoff</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Prozessüberwachung</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Pryrometer</value>
    </subject>
    <collection role="ddc" number="670">Industrielle Fertigung</collection>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>892</id>
    <completedYear/>
    <publishedYear>2020</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>686</pageFirst>
    <pageLast>690</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>94</volume>
    <type>conferenceobject</type>
    <publisherName>Elsevier</publisherName>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-01-28</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Absorber-free Laser Transmission Welding of Transparent Polymers using Fixed Focus Optics and 3D Laser Scanner</title>
    <abstract language="eng">Laser transmission welding is a well-known joining technology for thermoplastics, providing reliable and hermetical sealing without adhesives or particle formation. The main advantages of laser-based energy input - high precision, no additional adhesive and no particle emission - are essential for medical and optical applications. To obtain sufficient absorption in visually transparent polymers, thulium fibre lasers emitting in the polymers’ intrinsic absorption spectrum are used. Optics with high numerical aperture provide large intensity gradients inside the specimen, enabling selective fusing in the joining zone. Although the basic feasibility has already been demonstrated, the welding process lacks stability and productivity.&#13;
&#13;
Aim of this work is the determination of optimized settings for a fast and reliable welding process. Thus, the interplay of process parameters as well as their impact on the seam are analysed by thermal simulations. Calculated settings are verified by welding tests with COC, PA6 and PETG, using a fixed-focus optics and a 3D laser scanner with up to 200 mm/s feed rate.</abstract>
    <parentTitle language="eng">Procedia CIRP</parentTitle>
    <identifier type="doi">10.1016/j.procir.2020.09.117</identifier>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <enrichment key="ConferenceStatement">11th CIRP Conference on Photonic Technologies [LANE 2020] on September 7-10, 2020</enrichment>
    <licence>Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International</licence>
    <author>Frederik Maiwald</author>
    <author>Stephan Englmaier</author>
    <author>Stefan Hierl</author>
    <collection role="ddc" number="670">Industrielle Fertigung</collection>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="oaweg" number="">Gold Open Access- Erstveröffentlichung in einem/als Open-Access-Medium</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>902</id>
    <completedYear/>
    <publishedYear>2019</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferencesummary</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2021-01-28</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="deu">Absorberfreies Laser-Durchstrahlschweißen transparenter Kunststoffe</title>
    <parentTitle language="deu">InnovationForum Medizintechnik, Tuttlingen, 24.10.2019</parentTitle>
    <author>Frederik Maiwald</author>
    <author>Stefan Hierl</author>
    <collection role="ddc" number="670">Industrielle Fertigung</collection>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>3242</id>
    <completedYear/>
    <publishedYear>2022</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>11</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5</issue>
    <volume>12</volume>
    <type>article</type>
    <publisherName>MPDI</publisherName>
    <publisherPlace>Basel</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Optical Coherence Tomography for 3D Weld Seam Localization in Absorber-Free Laser Transmission Welding</title>
    <abstract language="eng">Quality and reliability are of the utmost importance for manufacturing in the optical and medical industries. Absorber-free laser transmission welding enables the precise joining of identical polymers without additives or adhesives and is well-suited to meet the demands of the aforementioned industries. To attain sufficient absorption of laser energy without absorbent additives, thulium fiber lasers, which emit in the polymers’ intrinsic absorption spectrum, are used. Focusing the laser beam with a high numerical aperture provides significant intensity gradients inside the workpiece and enables selective fusing of the internal joining zone without affecting the surface of the device. Because seam size and position are crucial, the high-quality requirements demand internal weld seam monitoring. In this work, we propose a novel method to determine weld seam location and size using optical coherence tomography. Changes in optical material properties because of melting and re-solidification during welding allow for weld seam differentiation from the injection-molded base material. Automatic processing of the optical coherence tomography data enables the identification and measurement of the weld seam geometry. The results from our technique are consistent with microscopic images of microtome sections and demonstrate that weld seam localization in polyamide 6 is possible with an accuracy better than a tenth of a millimeter.</abstract>
    <parentTitle language="eng">Applied Sciences</parentTitle>
    <identifier type="doi">10.3390/app12052718</identifier>
    <note>Corresponding author: Frederik Maiwald</note>
    <enrichment key="opus.import.date">2022-03-20T14:33:49+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Frederik Maiwald</author>
    <author>Clemens Roider</author>
    <author>Michael Schmidt</author>
    <author>Stefan Hierl</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>image processing</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>laser transmission welding</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>optical coherence tomography</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>process monitoring</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>transparent polymers</value>
    </subject>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="oaweg" number="">Corresponding author der OTH Regensburg</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
  </doc>
  <doc>
    <id>7920</id>
    <completedYear/>
    <publishedYear>2025</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>46</pageFirst>
    <pageLast>52</pageLast>
    <pageNumber/>
    <edition/>
    <issue>1</issue>
    <volume/>
    <type>article</type>
    <publisherName>DVS Media</publisherName>
    <publisherPlace>Düsseldorf</publisherPlace>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>--</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Laser welding of polymer foils with spatially adapted intensity distributions</title>
    <abstract language="eng">Absorber-free laser transmission welding is characterized by its contactless energy input and geometricflexibility and enables the precise and clean joining of polymer films without absorbing additives or adhesives. It is therefore well suited for applications with high demands regarding process reliability and cleanliness such as packaging, fluid containersor as sealing film in medicaland food industry. A homogeneous weld seam temperature is necessary for a large processwindow. In this work, the naturally Gaussian-shaped intensity distributionof the laser beam is there foreconverted into a donut-shaped and a flat-top-shaped distribution. When using the donut-shape, the processwindow for welding polypropylene or polyethylene films is increased by up to a factor of 3. At the same time, the weld seam strength almost corresponds to the strength of the base material.</abstract>
    <parentTitle language="deu">Joining Plastics</parentTitle>
    <identifier type="doi">10.53192/JP20250146</identifier>
    <identifier type="issn">1864-3450</identifier>
    <enrichment key="opus.import.date">2025-01-20T09:16:32+00:00</enrichment>
    <enrichment key="opus.source">sword</enrichment>
    <enrichment key="opus.import.user">importuser</enrichment>
    <enrichment key="BegutachtungStatus">peer-reviewed</enrichment>
    <licence>Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG</licence>
    <author>Frederik Maiwald</author>
    <author>Lea Kroth</author>
    <author>René Geiger</author>
    <author>Bernhard Schmitt</author>
    <author>Stefan Hierl</author>
    <author>Michael Schmidt</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschweissen</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Kunststofffolie</value>
    </subject>
    <collection role="institutes" number="FAKMB">Fakultät Maschinenbau</collection>
    <collection role="othforschungsschwerpunkt" number="16316">Produktion und Systeme</collection>
    <collection role="institutes" number="TCParsberg">Technologie-Campus Parsberg-Lupburg</collection>
    <collection role="institutes" number="">Labor Laser-Materialbearbeitung (LMP)</collection>
    <collection role="DFGFachsystematik" number="1">Ingenieurwissenschaften</collection>
  </doc>
  <doc>
    <id>3427</id>
    <completedYear/>
    <publishedYear>2021</publishedYear>
    <thesisYearAccepted/>
    <language>deu</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
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