@article{ZieburaBremenSchleifenbaumetal.2018,
  author    = {Ziebura, Dawid and Bremen, Sebastian and Schleifenbaum, Johannes Henrich and Gebhardt, Andreas},
  title     = {Machbarkeitsstudie zur Verarbeitung von nicht rostendem Stahl 1.4404 unter Verwendung einer Diodenlaser-basierten LPBF-Maschine mit kartesischem Achssystem},
  series = {RTejournal - Forum f{\"u}r Rapid Technologie},
  volume    = {15},
  journal   = {RTejournal - Forum f{\"u}r Rapid Technologie},
  issn      = {1614-0923},
  year      = {2018},
  language  = {de}
}
@article{SchwarzGebhardtSchleseretal.2019,
  author    = {Schwarz, Alexander and Gebhardt, Andreas and Schleser, Markus and Popoola, Patricia},
  title     = {New Welding Joint Geometries Manufactured by Powder Bed Fusion from 316L},
  series = {Materials Performance and Characterization 8},
  journal   = {Materials Performance and Characterization 8},
  number    = {in press},
  issn      = {2379-1365},
  doi       = {10.1520/MPC20180096},
  year      = {2019},
  language  = {en}
}
@article{RieperGebhardtStucker2016,
  author    = {Rieper, Harald and Gebhardt, Andreas and Stucker, Brent},
  title     = {Selective Laser Melting of the Eutectic Silver-Copper Alloy Ag 28 wt \% Cu},
  series = {RTejournal - Forum f{\"u}r Rapid Technologie},
  volume    = {13},
  journal   = {RTejournal - Forum f{\"u}r Rapid Technologie},
  issn      = {1614-0923},
  url       = {http://nbn-resolving.de/nbn:de:0009-2-44141},
  year      = {2016},
  abstract  = {The aim of this work was to perform a detailed investigation of the use of Selective Laser Melting (SLM) technology to process eutectic silver-copper alloy Ag 28 wt. \% Cu (also called AgCu28). The processing occurred with a Realizer SLM 50 desktop machine. The powder analysis (SEM-topography, EDX, particle distribution) was reported as well as the absorption rates for the near-infrared (NIR) spectrum. Microscope imaging showed the surface topography of the manufactured parts. Furthermore, microsections were conducted for the analysis of porosity. The Design of Experiments approach used the response surface method in order to model the statistical relationship between laser power, spot distance and pulse time.},
  language  = {en}
}
@article{KunkelGebhardtMpofuetal.2019,
  author    = {Kunkel, Maximilian Hugo and Gebhardt, Andreas and Mpofu, Khumbulani and Kallweit, Stephan},
  title     = {Quality assurance in metal powder bed fusion via deep-learning-based image classification},
  series = {Rapid Prototyping Journal},
  volume    = {26},
  journal   = {Rapid Prototyping Journal},
  number    = {2},
  issn      = {1355-2546},
  doi       = {10.1108/RPJ-03-2019-0066},
  pages     = {259 -- 266},
  year      = {2019},
  language  = {en}
}
@article{KunkelGebhardtMpofuetal.2018,
  author    = {Kunkel, Maximilian Hugo and Gebhardt, Andreas and Mpofu, Khumbaulani and Kallweit, Stephan},
  title     = {Statistical assessment of mechanical properties of selective laser melted specimens of stainless steel},
  series = {The International Journal of Advanced Manufacturing Technology},
  volume    = {98},
  journal   = {The International Journal of Advanced Manufacturing Technology},
  number    = {5-8},
  publisher = {Springer},
  address   = {London},
  issn      = {0268-3768},
  doi       = {10.1007/s00170-018-2040-8},
  pages     = {1409 -- 1431},
  year      = {2018},
  abstract  = {The rail business is challenged by long product life cycles and a broad spectrum of assembly groups and single parts. When spare part obsolescence occurs, quick solutions are needed. A reproduction of obsolete parts is often connected to long waiting times and minimum lot quantities that need to be purchased and stored. Spare part storage is therefore challenged by growing stocks, bound capital and issues of part ageing. A possible solution could be a virtual storage of spare parts which will be 3D printed through additive manufacturing technologies in case of sudden demand. As mechanical properties of additive manufactured parts are neither guaranteed by machine manufacturers nor by service providers, the utilization of this relatively young technology is impeded and research is required to address these issues. This paper presents an examination of mechanical properties of specimens manufactured from stainless steel through the selective laser melting (SLM) process. The specimens were produced in multiple batches. This paper interrogates the question if the test results follow a normal distribution pattern and if mechanical property predictions can be made. The results will be put opposite existing threshold values provided as the industrial standard. Furthermore, probability predictions will be made in order to examine the potential of the SLM process to maintain state-of-the-art mechanical property requirements.},
  language  = {en}
}
@article{KesslerBalcGebhardtetal.2015,
  author    = {Kessler, Julia and Balc, Nicolae and Gebhardt, Andreas and Abbas, Karim},
  title     = {Basic Research on Lattice Structures Focused on the Tensile Strength},
  series = {Applied Mechanics and Materials},
  volume    = {Vol. 808},
  journal   = {Applied Mechanics and Materials},
  publisher = {Trans Tech Publications},
  address   = {B{\"a}ch},
  issn      = {1662-7482},
  doi       = {10.4028/www.scientific.net/AMM.808.193},
  pages     = {193 -- 198},
  year      = {2015},
  language  = {en}
}
@article{HoetterFateriGebhardt2012,
  author    = {H{\"o}tter, Jan-Steffen and Fateri, Miranda and Gebhardt, Andreas},
  title     = {Prozessoptimierung des SLM-Prozesses mit hoch-reflektiven und thermisch sehr gut leitenden Materialien durch systematische Parameterfindung und begleitende Simulationen am Beispiel von Silber},
  series = {RTejournal - Forum f{\"u}r Rapid Technologie},
  volume    = {9},
  journal   = {RTejournal - Forum f{\"u}r Rapid Technologie},
  number    = {1},
  publisher = {Fachhoschule Aachen},
  address   = {Aachen},
  issn      = {1614-0923},
  url       = {http://nbn-resolving.de/urn:nbn:de:0009-2-33639},
  pages     = {1 -- 14},
  year      = {2012},
  abstract  = {Additive Manufacturing durch Aufschmelzen von Metallpulvern hat sich auf breiter Front als Herstellverfahren, auch f{\"u}r Endprodukte, etabliert. Besonders f{\"u}r die Variante des Selective Laser Melting (SLM) sind Anwendungen in der Zahntechnik bereits weit verbreitet und der Einsatz in sensitiven Branchen wie der Luftfahrt ist in greifbare N{\"a}he ger{\"u}ckt. Deshalb werden auch vermehrt Anstrengungen unternommen, um bisher nicht verarbeitete Materialien zu qualifizieren. Dies sind vorzugsweise Nicht-Eisen- und Edelmetalle, die sowohl eine sehr hohe Reflektivit{\"a}t als auch eine sehr gute W{\"a}rmeleitf{\"a}higkeit aufweisen - beides Eigenschaften, die die Beherrschung des Laser-Schmelzprozesses erschweren und nur kleine Prozessfenster zulassen. Die Arbeitsgruppe SLM des Lehr- und Forschungsgebietes Hochleistungsverfahren der Fertigungstechnik hat sich unter der Randbedingung einer kleinen und mit geringer Laserleistung ausgestatteten SLM Maschine der Aufgabe gewidmet und am Beispiel von Silber die Parameterfelder f{\"u}r Einzelspuren und wenig komplexe Geometrien systematisch untersucht. Die Arbeiten wurden von FEM Simulationen begleitet und durch metallographische Untersuchungen verifiziert. Die Ergebnisse bilden die Grundlage zur schnellen Parameterfindung bei komplexen Geometrien und bei Ver{\"a}nderungen der Zusammensetzung, wie sie bei zuk{\"u}nftigen Legierungen zu erwarten sind. Die Ergebnisse werden exemplarisch auf unterschiedliche Geometrien angewandt und entsprechende Bauteile gezeigt.},
  language  = {de}
}
@article{HoetterFateriGebhardt2012,
  author    = {H{\"o}tter, Jan-Steffen and Fateri, Miranda and Gebhardt, Andreas},
  title     = {Selective laser melting of metals: desktop machines open up new chances even for small companies},
  series = {Advanced materials research},
  volume    = {622-623},
  journal   = {Advanced materials research},
  publisher = {Trans Tech Publ.},
  address   = {Baech},
  issn      = {1662-8985 (E-Journal); 1022-6680 (Print)},
  doi       = {10.4028/www.scientific.net/AMR.622-623.461},
  pages     = {461 -- 465},
  year      = {2012},
  abstract  = {Additive manufacturing (AM) of metal parts by using Selective Laser Melting (SLM) has become a powerful tool mostly in the area of automotive, aerospace engineering and others. Especially in the field of dentistry, jewelry and related branches that require individualized or even one-of-a-kind products, the direct digital manufacturing process opens up new ways of design and manufacturing. In these fields, mostly small and medium sized businesses (SME) are operating which do not have sufficient human and economic resources to invest in this technology. But to stay competitive, the application of AM can be regarded as a necessity. In this situation a new desktop machine (Realizer SLM 50) was introduced that cost about 1/3 of a shop floor SLM machine and promises small quality parts. To find out whether the machine really is an alternative for SMEs the University of Applied Science, Aachen, Germany, designed, build and optimized typical parts from the dentistry and the jewelry branches using CoCr and silver material, the latter being new with this application. The paper describes the SLM procedure and how to find and optimize the most important parameters. The test is accompanied by digital simulation in order to verify the build parameters and to plan future builds. The procedure is shown as well as the resulting parts made from CoCr and silver material.},
  language  = {en}
}
@article{HoevelerJanserBindewaldetal.2015,
  author    = {Hoeveler, Bastian and Janser, Frank and Bindewald, Thorsten and Gebhardt, Andreas},
  title     = {Entwurf, Fertigung und Untersuchung eines Windkanalmodells eines innovativen, senkrechtstartenden Kleinflugzeuges},
  series = {RTejournal - Forum f{\"u}r Rapid Technologie},
  journal   = {RTejournal - Forum f{\"u}r Rapid Technologie},
  number    = {12},
  publisher = {Fachhochschule Aachen},
  address   = {Aachen},
  issn      = {1614-0923},
  url       = {http://nbn-resolving.de/urn:nbn:de:0009-2-42921},
  pages     = {1 -- 5},
  year      = {2015},
  language  = {de}
}
@article{GebhardtSchmidtHoetteretal.2010,
  author    = {Gebhardt, Andreas and Schmidt, Frank-Michael and H{\"o}tter, Jan-Steffen and Sokalla, Wolfgang and Sokalla, Patrick},
  title     = {Additive Manufacturing by selective laser melting the realizer desktop machine and its application for the dental industry},
  series = {Physics Procedia},
  volume    = {5},
  journal   = {Physics Procedia},
  number    = {2},
  isbn      = {1875-3892},
  pages     = {543 -- 549},
  year      = {2010},
  language  = {en}
}