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    <title language="eng">Flexible 2D Laser Cutting of Ultra-Thin Glass Using an Ultrashort Pulsed Laser Robotic System</title>
    <parentTitle language="eng">Journal of Laser Micro/Nanoengineering</parentTitle>
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    <author>Daniel Franz</author>
    <editor>Cemal Esen</editor>
    <author>Yongting Yang</author>
    <author>Cemal Esen</author>
    <author>Ralf Hellmann</author>
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    <title language="eng">Vision transformer based cut interruption detection and prediction of laser fusion cutting from monitored melt pool images</title>
    <abstract language="eng">Incomplete cuts during laser fusion cutting result in a closed kerf, preventing the workpiece from detaching from the sheet and resulting in rework or rejection. We demonstrate the approach of a vision transformer, used for image classification, to detect cut interruption during laser fusion cutting in steel and aluminum. With events impending an incomplete cut in steel, we attempt to predict cut interruption before they even occur. To build a data set for training, cutting experiments are carried out with a 4 kW fiber laser, forcing incomplete cuts by varying the process parameters such as laser power and feed rate. The thermal radiation from the process zone during the cutting process is captured with a size of 256 × 256 px2 at sample rates of 20 × 103 fps. The kerf is recorded with a spectral sensitivity between 400 and 700 nm, without external illumination, which enables the melt to be observed in the range of the visual spectrum. The vision transformer model, which is used for image classification, splits the image into patches, linearly embedded with an added position embedding, and fed to a standard transformer encoder. For training the model, a set of images was labeled for the respective classes of a complete, incomplete, and impending incomplete cut. With the trained model, incomplete cuts in steel and aluminum can then be recognized and impending incomplete cuts in steel can be predicted in advance.</abstract>
    <parentTitle language="eng">Journal of Laser Applications</parentTitle>
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    <author>Max Schleier</author>
    <author>Cemal Esen</author>
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    <title language="eng">Evaluation of a Cut Interruption Algorithm for Laser Cutting Steel and Aluminum with a High-Speed Camera</title>
    <abstract language="eng">We report on a monitoring system based on a high-speed camera for fiber laser fusion cutting. The monitoring system is used without an external illumination retrofit on a conventional cutting head, with the optical path aligned coaxially to the incident laser, permitting a direct, spatially, and temporally resolved detection of the melt pool area in the cut kerf from the top view. The dependence of the melt pool area on laser processing parameters such as laser power and feed rate are thus evaluated for stainless steel, zinc-coated steel, and aluminum, respectively. The signal characteristics of the images captured from the melt pool are examined in the visible spectral range of the emitted secondary thermal radiation from the process zone. An ad hoc developed image processing algorithm analyzes the spectral and geometric information of the melt pool from high-speed camera images and distinguishes between complete and incomplete cuts.</abstract>
    <parentTitle language="eng">Applied Sciences</parentTitle>
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    <title language="eng">High speed melt flow monitoring and development of an image processing algorithm for laser fusion cutting</title>
    <abstract language="eng">This contribution presents high-speed camera monitoring of melt pool dynamics for steel during laser fusion cutting and compares the images with recordings in aluminum. The experiments are performed by a 4 kW multimode fiber laser with an emission wavelength of 1070 nm. To visualize the thermal radiation from the process zone during the cutting process, the kerf is captured at sample rates of up to 170 000 frames per second without external illumination with a spectral response between 400 and 700 nm, allowing measurements of the melt flow dynamics from geometric image features. The dependencies of the melt flow dynamics on laser processing parameters, such as feed rate, gas pressure, and laser power, can be evaluated. The monitoring system is placed both off-axis and mounted to a conventional cutting head, with the monitoring path aligned to the processing laser for a coaxial and lateral view of the cut kerf. The measured signal characteristics of the images captured from the melt pool are examined in the visible spectral range of the emitted thermal radiation from the process zone. Moreover, a specifically developed image processing algorithm is developed that process and analyze the captured images and extract geometric information for a measurement of the melt flow.</abstract>
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    <title language="eng">Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera</title>
    <abstract language="eng">We present an in situ process monitoring approach for remote fiber laser cutting, which is based on evaluating images from a high-speed camera. A specifically designed image processing algorithm allows the distinction between complete and incomplete cuts by analyzing spectral and geometric information of the melt pool from the captured images of the high-speed camera. The camera-based monitoring system itself is fit to a conventional laser deflection unit for use with high-power fiber lasers, with the optical detection path being coaxially aligned to the incident laser. Without external illumination, the radiation of the melt from the process zone is recorded in the visible spectral range from the top view and spatially and temporally resolved. The melt pool size and emitted sparks are evaluated in dependence of machining parameters such as feed rate, cycles, and focus position during cutting electrical sheets.</abstract>
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    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-12-14</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Cross-correlation-based algorithm for monitoring laser cutting with high-power fiber lasers</title>
    <parentTitle language="eng">IEEE Sensors Journal</parentTitle>
    <identifier type="doi">10.1109/JSEN.2017.2783761</identifier>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Max Schleier</author>
    <author>Benedikt Adelmann</author>
    <author>Cemal Esen</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Detection algorithm, laser cutting, online monitoring</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Hochleistungslaser</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>1607</id>
    <completedYear>2017</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>13</pageFirst>
    <pageLast>17</pageLast>
    <pageNumber/>
    <edition/>
    <issue>-</issue>
    <volume>96</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2017-04-27</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Burr formation detector for fiber laser cutting based on a photodiode sensor system</title>
    <parentTitle language="eng">Optics &amp; Laser Technology</parentTitle>
    <identifier type="doi">10.1016/j.optlastec.2017.04.027</identifier>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Max Schleier</author>
    <author>Benedikt Adelmann</author>
    <author>Benedikt Neumeier</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Unique sensor; Detection of burr formation;     Signal characteristics associated to melt bath dynamics;</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>1601</id>
    <completedYear>2019</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2019-03-20</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Glass cutting by oblate-tip axicon-generated Bessel-Gaussian beams</title>
    <parentTitle language="eng">Open Readings, 63rd International Conference for Students of Physics and Natural Sciences</parentTitle>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Juozas Dudutis</author>
    <author>Jokūbas Pipiras</author>
    <author>Simon Schwarz</author>
    <author>Stefan Rung</author>
    <author>Ralf Hellmann</author>
    <author>Gediminas Račiukaitis</author>
    <author>Paulius Gečys</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Glas</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
  </doc>
  <doc>
    <id>1572</id>
    <completedYear>2015</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>279</pageFirst>
    <pageLast>283</pageLast>
    <pageNumber/>
    <edition/>
    <issue>3</issue>
    <volume>10</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2015-01-12</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Cutting and Drilling of SiC Semiconductor by Fiber Laser</title>
    <abstract language="eng">We present an experimental study on fiber laser micromachining of 4H-SiC semiconductor. In particular, we optimize the process time for percussion drilling of 440 µm and 330 µm thick wafers with a minimum drilling time of, eg, 7.5 ms being achieved for 330 µm thick wafers. The drilled holes are characterized by a low taper, a high circularity and entry diameters of about 60 µm. For laser cutting, effective cutting speeds of 2 mm/s and 0.63 mm/s are obtained for 330 µm and 440 µm wafer thickness, respectively, with the cut kerf width being 65 µm. Both processes are associated with a good quality that is characterized by no chipping and cracks. The capability of the fiber laser based micromachining process is highlighted by cutting complex micrometer scale inner and outer contours into partially metallized SiC wafers with high quality.</abstract>
    <parentTitle language="eng">Journal of Laser Micro/Nanoengineering</parentTitle>
    <enrichment key="copyright">1</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Gian-Luca Roth</author>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
  </doc>
  <doc>
    <id>1565</id>
    <completedYear>2015</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2053</pageFirst>
    <pageLast>2060</pageLast>
    <pageNumber/>
    <edition/>
    <issue>80</issue>
    <volume>2015</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2015-03-12</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">High aspect ratio cutting of metals using water jet guided laser</title>
    <parentTitle language="eng">The International Journal of Advanced Manufacturing Technology</parentTitle>
    <enrichment key="copyright">1</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Benedikt Adelmann</author>
    <author>Chan Ngo</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Wasserstrahlschneiden</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>1564</id>
    <completedYear>2015</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>544</pageFirst>
    <pageLast>554</pageLast>
    <pageNumber/>
    <edition/>
    <issue>5/3</issue>
    <volume>2015</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2015-04-27</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Optical cutting interruption sensor for fiber lasers</title>
    <parentTitle language="eng">Applied Sciences</parentTitle>
    <enrichment key="copyright">1</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Benedikt Adelmann</author>
    <author>Max Schleier</author>
    <author>Benedikt Neumeier</author>
    <author>Eugen Wilmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>1563</id>
    <completedYear>2015</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2015-07-22</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Optical cutting tear detection system for industrial fiber laser based cutting machines</title>
    <parentTitle language="deu">Lasers in Manufacturing Conference 2015</parentTitle>
    <enrichment key="copyright">1</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Benedikt Adelmann</author>
    <author>Benedikt Neumeier</author>
    <author>Max Schleier</author>
    <author>Eugen Wilmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>1560</id>
    <completedYear>2014</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>153</pageFirst>
    <pageLast>160</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>9</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-02-08</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Investigation on flexural strength changes of alumina caused by cutting using fiber laser</title>
    <parentTitle language="eng">Journal of Laser Micro/Nanoengineering</parentTitle>
    <enrichment key="copyright">1</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>1555</id>
    <completedYear>2015</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>9</pageLast>
    <pageNumber/>
    <edition/>
    <issue>15</issue>
    <volume>2015</volume>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2015-06-09</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Comparative study of experimentally determined and simulated mechanical strength of fiber laser cut alumina substrates</title>
    <parentTitle language="eng">Proceedings of the 7th International Congress on Laser Advanced Materials Processing</parentTitle>
    <enrichment key="copyright">1</enrichment>
    <licence>Creative Commons - CC BY - Namensnennung 4.0 International</licence>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Aluminiumoxide</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>386</id>
    <completedYear>2013</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-08-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Laser Cutting of Alumina and Aluminum Nitride with a 500 W Single Mode Fiber Laser</title>
    <parentTitle language="eng">XXVII. microCAD International Scientific Conference</parentTitle>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Stefan Hasenstab</author>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Aluminiumoxide</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
  </doc>
  <doc>
    <id>383</id>
    <completedYear>2013</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>2693</pageFirst>
    <pageLast>2701</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>68</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-08-25</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Process optimization of laser fusion cutting of multilayer stacks of electrical sheets</title>
    <parentTitle language="eng">International Journal of Advanced Manufacturing Technology</parentTitle>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>295</id>
    <completedYear>2011</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>168</pageFirst>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue>2</issue>
    <volume>6</volume>
    <type>article</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-03-17</completedDate>
    <publishedDate>2014-05-06</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Water Jet Guided Laser Cutting of Silicon Thin Films Using 515nm Disc Laser</title>
    <parentTitle language="eng">Journal of Laser Micro/Nanoengineering</parentTitle>
    <enrichment key="copyright">0</enrichment>
    <enrichment key="review.accepted_by">2</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Eva-Maria Heilmann</author>
    <author>Ralf Hellmann</author>
    <author>Albrecht Seidl</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Dünne Schicht</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>157</id>
    <completedYear>2010</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>243</pageFirst>
    <pageLast>252</pageLast>
    <pageNumber/>
    <edition/>
    <issue>Part B</issue>
    <volume>5</volume>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-02-10</completedDate>
    <publishedDate>2014-05-06</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Optimisation of laser cutting using design of experiment - A comparative study of cutting thin ceramic layers using a fibre laser and a CO2 laser</title>
    <parentTitle language="eng">Physics procedia</parentTitle>
    <parentTitle language="mul">6th international conference on laser assisted net shape engineering</parentTitle>
    <identifier type="issn">1875-3892</identifier>
    <enrichment key="review.accepted_by">2</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Kristof Hühnlein</author>
    <author>Katrin Tschirpke</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>232</id>
    <completedYear>2011</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>1</pageFirst>
    <pageLast>6</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-02-19</completedDate>
    <publishedDate>2014-05-06</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Different modulation schemes in fibre laser cutting</title>
    <parentTitle language="eng">Proceeding XXV microCAD, International scientific conference, 2011, Section K: Material science/Material processing technologies</parentTitle>
    <enrichment key="review.accepted_by">2</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
    </subject>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
    </subject>
    <collection role="forschungsschwerpunkte" number="">Intelligent Sensors and Signals</collection>
    <collection role="forschungsschwerpunkte" number="">Innovative Material Processing</collection>
    <collection role="forschungsschwerpunkte" number="">Material Testing &amp; Sensor Technology</collection>
  </doc>
  <doc>
    <id>233</id>
    <completedYear>2011</completedYear>
    <publishedYear/>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst>7</pageFirst>
    <pageLast>12</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>conferenceobject</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2014-02-19</completedDate>
    <publishedDate>2014-05-06</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">DOE based optimization of fibre laser cutting of metals</title>
    <parentTitle language="eng">Proceeding XXV microCAD, International scientific conference, 2011, Section K: Material science/Material processing technologies</parentTitle>
    <enrichment key="review.accepted_by">2</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Benedikt Adelmann</author>
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      <language>deu</language>
      <type>swd</type>
      <value>Faserlaser</value>
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  <doc>
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    <pageFirst>591</pageFirst>
    <pageLast>598</pageLast>
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    <edition/>
    <issue>Part A</issue>
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    <belongsToBibliography>0</belongsToBibliography>
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    <parentTitle language="eng">Physics Procedia 12-1, Elsevier Properties S.A</parentTitle>
    <enrichment key="copyright">0</enrichment>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
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      <language>deu</language>
      <type>swd</type>
      <value>Optimierung</value>
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    <pageFirst>225</pageFirst>
    <pageLast>231</pageLast>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume>39</volume>
    <type>article</type>
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    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2013-12-18</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>--</thesisDateAccepted>
    <title language="eng">Comparative study of remote fiber laser and water-jet guided laser cutting of thin film metal sheets</title>
    <parentTitle language="eng">Physics procedia</parentTitle>
    <licence>Keine Lizenz - es gilt das deutsche Urheberrecht</licence>
    <author>Klaus Hock</author>
    <author>Benedikt Adelmann</author>
    <author>Ralf Hellmann</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>laser</value>
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      <language>deu</language>
      <type>swd</type>
      <value>Laserschneiden</value>
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    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2013-12-18</completedDate>
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    <title language="eng">Water Jet Guided Laser Cutting of High Temperature Superconductors</title>
    <parentTitle language="eng">Journal of Laser Micro/Nanoengineering</parentTitle>
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    <author>Eva-Maria Heilmann</author>
    <author>Thomas Kowalski</author>
    <author>Ralf Hellmann</author>
    <author>Johannes Teigelkötter</author>
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      <language>eng</language>
      <type>uncontrolled</type>
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</export-example>
