@incollection{Schmidt2014, author = {Schmidt, Herbert}, title = {Angst vor Zukunft, Lust auf Zukunft}, series = {Re|peat-Jahrbuch Treasury und Private Banking : Produkte, M{\"a}rkte und Strategien zum Nachschlagen und Verstehen}, booktitle = {Re|peat-Jahrbuch Treasury und Private Banking : Produkte, M{\"a}rkte und Strategien zum Nachschlagen und Verstehen}, publisher = {Roland Eller}, address = {Potsdam}, pages = {255 -- 269}, year = {2014}, language = {de} } @inproceedings{StarkeKunkelHahn2013, author = {Starke, G{\"u}nther and Kunkel, Thomas and Hahn, Daniel}, title = {Flexible collaboration and control of heterogeneous mechatronic devices and systems by means of an event-driven, SOA-based automation concept}, series = {2013 IEEE International Conference on Industrial Technologies (ICIT-13)}, booktitle = {2013 IEEE International Conference on Industrial Technologies (ICIT-13)}, publisher = {IEEE}, address = {Piscataway, NJ}, organization = {International Conference on Industrial Technologies <2013, Cape Town>}, isbn = {978-1-4673-4567-5 ; 978-1-4673-4569-9}, pages = {1982 -- 1987}, year = {2013}, language = {en} } @incollection{Schmidt2013, author = {Schmidt, Herbert}, title = {Finanzierungspartnerwahl durch mittelst{\"a}ndische Unternehmen}, series = {Innovation durch Kooperation : wie der Mittelstand durch Zusammenarbeit mit den Hochschulen seine Wettbewerbsf{\"a}higkeit steigert ; Festschrift f{\"u}r Prof. Dr. rer. nat. Johannes Gartzen / Thomas Gartzen, Ute Gartzen (Hrsg.)}, booktitle = {Innovation durch Kooperation : wie der Mittelstand durch Zusammenarbeit mit den Hochschulen seine Wettbewerbsf{\"a}higkeit steigert ; Festschrift f{\"u}r Prof. Dr. rer. nat. Johannes Gartzen / Thomas Gartzen, Ute Gartzen (Hrsg.)}, publisher = {Apprimus Verlag}, address = {Aachen}, isbn = {978-3-86359-136-6}, pages = {163 -- 166}, year = {2013}, language = {de} } @inproceedings{FateriGebhardtKhosravi2013, author = {Fateri, Miranda and Gebhardt, Andreas and Khosravi, Maziar}, title = {Experimental investigation of selective laser melting of lunar regolith for in-situ applications}, series = {ASME 2013 International Mechanical Engineering Congress and Exposition : San Diego, California, USA, November 15-21, 2013. Vol. 2A: Advanced manufacturing}, booktitle = {ASME 2013 International Mechanical Engineering Congress and Exposition : San Diego, California, USA, November 15-21, 2013. Vol. 2A: Advanced manufacturing}, publisher = {ASME}, organization = {American Society of Mechanical Engineers}, isbn = {978-0-7918-5618-5}, pages = {V02AT02A008}, year = {2013}, language = {en} } @article{GebhardtFateri2014, author = {Gebhardt, Andreas and Fateri, Miranda}, title = {3D-Drucken und die Anwendungen}, series = {RTejournal - Forum f{\"u}r Rapid Technologie}, volume = {11 (2014)}, journal = {RTejournal - Forum f{\"u}r Rapid Technologie}, number = {1}, issn = {1614-0923}, pages = {1 -- 9}, year = {2014}, language = {de} } @article{GebhardtHoetterZiebura2014, author = {Gebhardt, Andreas and H{\"o}tter, Jan-Steffen and Ziebura, Dawid}, title = {Impact of SLM build parameters on the surface quality}, series = {RTejournal - Forum f{\"u}r Rapid Technologien}, volume = {11 (2014)}, journal = {RTejournal - Forum f{\"u}r Rapid Technologien}, number = {1}, issn = {1614-0923}, pages = {1 -- 14}, year = {2014}, language = {de} } @incollection{Reichert2014, author = {Reichert, Walter}, title = {Der Vertriebsingenieur: Ausbildung und Beruf}, series = {Berufsstart Technik : das Karriereportal f{\"u}r junge Akademiker ; Ingenieure, Naturwissenschaftler, Informatiker}, booktitle = {Berufsstart Technik : das Karriereportal f{\"u}r junge Akademiker ; Ingenieure, Naturwissenschaftler, Informatiker}, publisher = {Resch}, address = {Großenkneten}, pages = {456 -- 458}, year = {2014}, language = {de} } @inproceedings{Gebhardt2015, author = {Gebhardt, Andreas}, title = {Generative Fertigungsverfahren in der Produktentwicklung}, series = {Spritzgießen 2015}, booktitle = {Spritzgießen 2015}, publisher = {VDI-Verlag}, address = {D{\"u}sseldorf}, organization = {VDI-Gesellschaft Kunststofftechnik (VDI-K), Baden-Baden, DE, 10.-11.Feb, 2015}, isbn = {978-3-18-234336-3}, pages = {1 -- 19}, year = {2015}, language = {de} } @incollection{KallweitGottschalkWalenta2016, author = {Kallweit, Stephan and Gottschalk, Michael and Walenta, Robert}, title = {ROS based safety concept for collaborative robots in industrial applications}, series = {Advances in robot design and intelligent control : proceedings of the 24th International Conference on Robotics in Alpe-Adria-Danube Region (RAAD). (Advances in intelligent systems and computing ; 371)}, booktitle = {Advances in robot design and intelligent control : proceedings of the 24th International Conference on Robotics in Alpe-Adria-Danube Region (RAAD). (Advances in intelligent systems and computing ; 371)}, publisher = {Springer}, address = {Cham}, organization = {International Conference on Robotics in Alpe-Adria-Danube Region <24, 2015, Bucharest>}, isbn = {978-3-319-21289-0 (Print) ; 978-3-319-21290-6 (E-Book)}, doi = {10.1007/978-3-319-21290-6_3}, pages = {27 -- 35}, year = {2016}, abstract = {The production and assembly of customized products increases the demand for flexible automation systems. One approach is to remove the safety fences that separate human and industrial robot to combine their skills. This collaboration possesses a certain risk for the human co-worker, leading to numerous safety concepts to protect him. The human needs to be monitored and tracked by a safety system using different sensors. The proposed system consists of a RGBD camera for surveillance of the common working area, an array of optical distance sensors to compensate shadowing effects of the RGBD camera and a laser range finder to detect the co-worker when approaching the work cell. The software for collision detection, path planning, robot control and predicting the behaviour of the co-worker is based on the Robot Operating System (ROS). A first prototype of the work cell shows that with advanced algorithms from the field of mobile robotics a very flexible safety concept can be realized: the robot not simply stops its movement when detecting a collision, but plans and executes an alternative path around the obstacle.}, language = {en} } @inproceedings{WiezikHoetterGebhardt2015, author = {Wiezik, P. and H{\"o}tter, Jan-Steffen and Gebhardt, Andreas}, title = {Integration des Laserpolierens in den SLM-Prozess}, series = {DVS Congress 2015, Große Schweißtechnische Tagung, DVS-Studentenkongress, F{\"u}gen von faserverst{\"a}rkten Kunststoffen, Anwendungsnahe Schweißsimulation, Vortr{\"a}ge der Veranstaltungen, N{\"u}rnberg, DE, 15.-17. Sep, 2015}, volume = {315}, booktitle = {DVS Congress 2015, Große Schweißtechnische Tagung, DVS-Studentenkongress, F{\"u}gen von faserverst{\"a}rkten Kunststoffen, Anwendungsnahe Schweißsimulation, Vortr{\"a}ge der Veranstaltungen, N{\"u}rnberg, DE, 15.-17. Sep, 2015}, publisher = {Verl. f{\"u}r Schweißen und verwandte Verfahren, DVS-Verl.}, address = {D{\"u}sseldorf}, isbn = {978-3-945023-46-4}, pages = {117 -- 120}, year = {2015}, language = {de} } @article{FateriGebhardt2015, author = {Fateri, Miranda and Gebhardt, Andreas}, title = {Additive manufactured mechanical disentanglement lock}, series = {RTejournal - Forum f{\"u}r Rapid Technologie}, volume = {12}, journal = {RTejournal - Forum f{\"u}r Rapid Technologie}, publisher = {Fachhochschule Aachen}, address = {Aachen}, issn = {1614-0923}, url = {http://nbn-resolving.de/urn:nbn:de:0009-2-42147}, year = {2015}, language = {en} } @inproceedings{GrossmannGabrielliHerdrichetal.2015, author = {Großmann, Agnes and Gabrielli, Roland Antonius and Herdrich, Georg and Fasoulas, Stefanos and Schnauffer, Peter and Middendorf, Peter and Fateri, Miranda and Gebhardt, Andreas}, title = {Overview of the MultiRob 3D Lunar Industrial Development Project}, series = {Conference Contribution for the 30th ISTS, Kobe, Japan, 04.07.-10.07.2015}, booktitle = {Conference Contribution for the 30th ISTS, Kobe, Japan, 04.07.-10.07.2015}, pages = {8 S.}, year = {2015}, language = {en} } @inproceedings{GabrielliSeelmannGrossmannetal.2015, author = {Gabrielli, Roland Antonius and Seelmann, J{\"u}rgen and Großmann, Agnes and Herdrich, Georg and Fasoulas, Stefanos and Middendorf, Peter and Fateri, Miranda and Gebhardt, Andreas}, title = {System Architecture of a Lunar Industry Plant Using Regolith}, series = {Conference Contribution for the 30th ISTS, Kobe, Japan, 04.07.-10.07.2015}, booktitle = {Conference Contribution for the 30th ISTS, Kobe, Japan, 04.07.-10.07.2015}, pages = {8 S.}, year = {2015}, language = {de} } @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} } @inproceedings{FateriGebhardtGabriellietal.2015, author = {Fateri, Miranda and Gebhardt, Andreas and Gabrielli, Roland Antonius and Herdrich, Georg and Fasoulas, Stefanos and Großmann, Agnes and Schnauffer, Peter and Middendorf, Peter}, title = {Additive Manufacturing of Lunar Regolith for Extra-terrestrial Industry Plant}, series = {International Symposium on Space Technology and Science (ICTS). July 2015, Kobe, Japan}, booktitle = {International Symposium on Space Technology and Science (ICTS). July 2015, Kobe, Japan}, pages = {5 S.}, year = {2015}, language = {en} } @inproceedings{GabrielliMathiesGrossmannetal.2015, author = {Gabrielli, Roland Antonius and Mathies, Johannes and Großmann, Agnes and Herdrich, Georg and Fasoulas, Stefanos and Middendorf, Peter and Fateri, Miranda and Gebhardt, Andreas}, title = {Space Propulsion Considerations for a Lunar Take Off Industry Based on Regolith}, series = {International Symposium on Space Technology and Science (ISTS). July 2015, Kobe, Japan}, booktitle = {International Symposium on Space Technology and Science (ISTS). July 2015, Kobe, Japan}, year = {2015}, language = {en} } @inproceedings{FateriGebhardtRenftle2015, author = {Fateri, Miranda and Gebhardt, Andreas and Renftle, Georg}, title = {Additive Manufacturing of Drainage Segments for Cooling System of Crucibles Melting Furnaces}, series = {International Conference and Expo on Advanced Ceramics and Composites, (ICACC). January 2015, Florida, USA}, booktitle = {International Conference and Expo on Advanced Ceramics and Composites, (ICACC). January 2015, Florida, USA}, pages = {9 S.}, year = {2015}, abstract = {The cooling process in induction based crucible melting furnaces for Industrial applications is one of the important and challenging factors in production and safety engineering. Accordingly, proper implementation of the cooling system of the furnace using optimum cooling guides and fail-safe features are critical in order to improve the safety of the process. Regarding this, manufacturing of porous material with high electrical isolation for the drainage segments of the cooling channels is examined in this study. Consequently, various geometries with different porosities using glass and ceramic powder are fabricated using Selective Laser Sintering (SLS) process. The manufactured parts are examined in a prototype furnace testing and the feasibility of the SLS manufacturing of parts for this application is discussed.}, language = {en} } @book{Thomas2010, author = {Thomas, Axel}, title = {Rhetorische Knallfr{\"o}sche : Zitatensammlung f{\"u}r Politik und Wirtschaft}, publisher = {Neck + Heyn}, address = {Aachen}, isbn = {978-3-00-033037-7}, pages = {145 S. : Ill.}, year = {2010}, language = {de} } @book{Thomas2012, author = {Thomas, Axel}, title = {Rhetorische Knallfr{\"o}sche - reloaded : Zitatensammlung f{\"u}r Politik und Wirtschaft}, publisher = {Neck + Heyn}, address = {Aachen}, pages = {201 S. : Ill.}, year = {2012}, language = {de} } @book{Gebhardt2014, author = {Gebhardt, Andreas}, title = {3D-Drucken : Grundlagen und Anwendungen des Additive Manufacturing (AM)}, publisher = {Hanser}, address = {M{\"u}nchen}, isbn = {978-3-446-44238-2 ; 978-3-446-44237-5}, pages = {XIII, 186 S.}, year = {2014}, language = {de} } @article{FateriGebhardt2015, author = {Fateri, Miranda and Gebhardt, Andreas}, title = {Selective Laser Melting of Soda-Lime Glass Powder}, series = {International Journal of Applied Ceramic Technology}, volume = {12}, journal = {International Journal of Applied Ceramic Technology}, number = {1}, publisher = {Wiley-Blackwell}, address = {Oxford}, issn = {1744-7402}, doi = {10.1111/ijac.12338}, pages = {53 -- 61}, year = {2015}, language = {en} } @article{FateriGebhardt2015, author = {Fateri, Miranda and Gebhardt, Andreas}, title = {Process Parameters Development of Selective Laser Melting of Lunar Regolith for On-Site Manufacturing Applications}, series = {International Journal of Applied Ceramic Technology}, volume = {12}, journal = {International Journal of Applied Ceramic Technology}, number = {1}, publisher = {Wiley-Blackwell}, address = {Oxford}, isbn = {1744-7402}, doi = {10.1111/ijac.12326}, pages = {46 -- 52}, year = {2015}, language = {en} } @inproceedings{FateriGebhardt2014, author = {Fateri, Miranda and Gebhardt, Andreas}, title = {Jewelry fabrication via selective laser melting of glass}, series = {ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis Volume 1: Applied Mechanics; Automotive Systems; Biomedical Biotechnology Engineering; Computational Mechanics; Design; Digital Manufacturing; Education; Marine and Aerospace Applications}, booktitle = {ASME 2014 12th Biennial Conference on Engineering Systems Design and Analysis Volume 1: Applied Mechanics; Automotive Systems; Biomedical Biotechnology Engineering; Computational Mechanics; Design; Digital Manufacturing; Education; Marine and Aerospace Applications}, isbn = {978-0-7918-4583-7}, doi = {10.1115/ESDA2014-20380}, pages = {V001T06A005}, year = {2014}, abstract = {Selective Laser Melting (SLM) is one of the Additive Manufacturing (AM) technologies applicable for producing complex geometries which are typically expensive or difficult to fabricate using conventional methods. This process has been extensively investigated experimentally for various metals and the fabrication process parameters have been established for different applications; however, fabricating 3D glass objects using SLM technology has remained a challenge so far although it could have many applications. This paper presents a summery on various experimental evaluations of a material database incorporating the build parameters of glass powder using the SLM process for jewelry applications.}, language = {en} } @incollection{Benner2014, author = {Benner, Joachim}, title = {Berechnungsmethoden der W{\"a}lzlagerreibung und Einflussgr{\"o}ßen}, series = {SMK 2014 : Schweizer Maschinenelemente Kolloquim 25. und 26. November 2014}, booktitle = {SMK 2014 : Schweizer Maschinenelemente Kolloquim 25. und 26. November 2014}, publisher = {TUDpress Verl. der Wissenschaften}, address = {Dresden}, isbn = {978-3-944331-81-2}, pages = {151 -- 170}, year = {2014}, language = {de} } @article{Thomas2014, author = {Thomas, Axel}, title = {Generation Y}, series = {P.T. : Magazin f{\"u}r Wirtschaft und Gesellschaft}, volume = {10}, journal = {P.T. : Magazin f{\"u}r Wirtschaft und Gesellschaft}, number = {3}, publisher = {OPS Netzwerk}, address = {Leipzig}, issn = {1860-501X}, pages = {6 -- 9}, year = {2014}, language = {de} } @article{ThomasWassenberg2014, author = {Thomas, Axel and Wassenberg, Gerd}, title = {Erfolgreich sein im Kampf um die besten Talente : Employer Branding}, series = {Wirtschaftliche Nachrichten der Industrie- und Handelskammer Aachen}, journal = {Wirtschaftliche Nachrichten der Industrie- und Handelskammer Aachen}, publisher = {IHK Aachen}, address = {Aachen}, year = {2014}, language = {de} } @article{Gebhardt2015, author = {Gebhardt, Andreas}, title = {3D-Druck ist {\"u}berall. Modische Accessoires, Kleidung, Medikamente, Nahrungsmittel, Autos, H{\"a}user, Waffen, B{\"u}sten, Musikinstrumente - alles geht}, series = {Kunststoffe}, volume = {105}, journal = {Kunststoffe}, number = {10}, publisher = {Hanser}, address = {M{\"u}nchen}, issn = {0023-5563}, pages = {62 -- 70}, year = {2015}, language = {de} } @inproceedings{KilicRaatschenAstanehAsletal.2015, author = {Kilic, S. A. and Raatschen, Hans-J{\"u}rgen and Astaneh-Asl, A. and Apaydin, N. M.}, title = {Finite element modeling of the Fatih Sultan Mehmet Suspension Bridge}, series = {Multi-Span Large Bridges - Proceedings of the International Conference on Multi-Span Large Bridges}, booktitle = {Multi-Span Large Bridges - Proceedings of the International Conference on Multi-Span Large Bridges}, publisher = {CRC Press}, address = {Leiden}, isbn = {9781138027572}, pages = {1169 -- 1173}, year = {2015}, language = {en} } @inproceedings{NakagawaKallweitMichauxetal.2016, author = {Nakagawa, Masaki and Kallweit, Stephan and Michaux, Frank and Hojo, Teppei}, title = {Typical Velocity Fields and Vortical Structures around a Formula One Car, based on Experimental Investigations using Particle Image Velocimetry}, series = {SAE International Journal of Passenger Cars - Mechanical Systems}, booktitle = {SAE International Journal of Passenger Cars - Mechanical Systems}, issn = {1946-4002}, doi = {10.4271/2016-01-1611}, pages = {18 S.}, year = {2016}, language = {en} } @book{GebhardtHoetter2016, author = {Gebhardt, Andreas and H{\"o}tter, Jan-Steffen}, title = {Additive manufacturing : 3D printing for prototyping and manufacturing}, publisher = {Hanser Publishers}, address = {Munich}, isbn = {978-1-56990-582-1 ; 978-1-56990-583-8}, pages = {591 S.}, year = {2016}, language = {en} } @article{AbbasBalcBremenetal.2022, author = {Abbas, Karim and Balc, Nicolae and Bremen, Sebastian and Skupin, Marco}, title = {Crystallization and aging behavior of polyetheretherketone PEEK within rapid tooling and rubber molding}, series = {Journal of Manufacturing and Materials Processing}, volume = {6}, journal = {Journal of Manufacturing and Materials Processing}, number = {5}, publisher = {MDPI}, address = {Basel}, issn = {2504-4494}, doi = {10.3390/jmmp6050093}, pages = {1 -- 12}, year = {2022}, abstract = {In times of short product life cycles, additive manufacturing and rapid tooling are important methods to make tool development and manufacturing more efficient. High-performance polymers are the key to mold production for prototypes and small series. However, the high temperatures during vulcanization injection molding cause thermal aging and can impair service life. The extent to which the thermal stress over the entire process chain stresses the material and whether it leads to irreversible material aging is evaluated. To this end, a mold made of PEEK is fabricated using fused filament fabrication and examined for its potential application. The mold is heated to 200 ◦C, filled with rubber, and cured. A differential scanning calorimetry analysis of each process step illustrates the crystallization behavior and first indicates the material resistance. It shows distinct cold crystallization regions at a build chamber temperature of 90 ◦C. At an ambient temperature above Tg, crystallization of 30\% is achieved, and cold crystallization no longer occurs. Additional tensile tests show a decrease in tensile strength after ten days of thermal aging. The steady decrease in recrystallization temperature indicates degradation of the additives. However, the tensile tests reveal steady embrittlement of the material due to increasing crosslinking.}, language = {en} } @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} } @inproceedings{SchmidtKaschEichleretal.2021, author = {Schmidt, Thomas and Kasch, Susanne and Eichler, Fabian and Thurn, Laura}, title = {Process strategies on laser-based melting of glass powder}, series = {LiM 2021 proceedings}, booktitle = {LiM 2021 proceedings}, pages = {10 Seiten}, year = {2021}, abstract = {This paper presents the laser-based powder bed fusion (L-PBF) using various glass powders (borosilicate and quartz glass). Compared to metals, these require adapted process strategies. First, the glass powders were characterized with regard to their material properties and their processability in the powder bed. This was followed by investigations of the melting behavior of the glass powders with different laser wavelengths (10.6 µm, 1070 nm). In particular, the experimental setup of a CO2 laser was adapted for the processing of glass powder. An experimental setup with integrated coaxial temperature measurement/control and an inductively heatable build platform was created. This allowed the L-PBF process to be carried out at the transformation temperature of the glasses. Furthermore, the component's material quality was analyzed on three-dimensional test specimen with regard to porosity, roughness, density and geometrical accuracy in order to evaluate the developed L-PBF parameters and to open up possible applications.}, language = {en} } @article{FateriGebhardtThuemmleretal.2014, author = {Fateri, Miranda and Gebhardt, Andreas and Th{\"u}mmler, Stefan and Thurn, Laura}, title = {Experimental investigation on selective laser melting of glass}, series = {Physics procedia : 8th International Conference on Laser Assisted Net Shape Engineering LANE 2014}, volume = {56 (2014)}, journal = {Physics procedia : 8th International Conference on Laser Assisted Net Shape Engineering LANE 2014}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1875-3892 (E-Journal); 1875-3884 (Print)}, doi = {10.1016/j.phpro.2014.08.118}, pages = {357 -- 364}, year = {2014}, language = {en} } @book{EngelnMuellgesZimmermann1992, author = {Engeln-M{\"u}llges, Gisela and Zimmermann, Hans-J{\"u}rgen}, title = {Methoden und Modelle des Operations Research : f{\"u}r Ingenieure, {\"O}konomen und Informatiker / Hans-J{\"u}rgen Zimmermann. [Hrsg. von Gisela Engeln-M{\"u}llges] - 2., {\"u}berarb. Aufl.}, publisher = {Vieweg}, address = {Braunschweig ; Wiesbaden}, isbn = {3-528-18917-7}, pages = {XVI, 385 S. : graph. Darst. ; 23 cm}, year = {1992}, language = {de} } @book{EngelnMuellges2004, author = {Engeln-M{\"u}llges, Gisela}, title = {Numerische Mathematik und Statistik : NUMAS ; multimediales Lehr- und Lernsystem zur Numerischen Mathematik und Statistik ; Abschlussbericht ; Gemeinschaftsprojekt}, publisher = {Projektb{\"u}ro NUMAS, FH [u.a.]}, address = {Aachen}, year = {2004}, language = {de} } @inproceedings{AbbasThurnKessleretal.2019, author = {Abbas, Karim and Thurn, Laura and Kessler, Julia and Eichler, Fabian}, title = {Basic research of the consideration of additive manufactured lattice structures under thermoand fluid dynamic loads}, series = {Modern technologies in manufacturing (MTeM 2019)}, volume = {299}, booktitle = {Modern technologies in manufacturing (MTeM 2019)}, number = {Article 01009}, doi = {10.1051/matecconf/201929901009}, pages = {8 Seiten}, year = {2019}, language = {en} } @inproceedings{ThurnGebhardt2017, author = {Thurn, Laura and Gebhardt, Andreas}, title = {Arousing Enthusiasm for STEM: Teaching 3D Printing Technology}, series = {Conference Proceedings: New Perspectives in Science Education}, booktitle = {Conference Proceedings: New Perspectives in Science Education}, publisher = {liberiauniversitaria.it}, address = {Padua}, isbn = {978-88-6292-847-2}, pages = {87 -- 92}, year = {2017}, language = {en} } @inproceedings{AlhwarinFerreinGebhardtetal.2015, author = {Alhwarin, Faraj and Ferrein, Alexander and Gebhardt, Andreas and Kallweit, Stephan and Scholl, Ingrid and Tedjasukmana, Osmond Sanjaya}, title = {Improving additive manufacturing by image processing and robotic milling}, series = {2015 IEEE International Conference on Automation Science and Engineering (CASE), Aug 24-28, 2015 Gothenburg, Sweden}, booktitle = {2015 IEEE International Conference on Automation Science and Engineering (CASE), Aug 24-28, 2015 Gothenburg, Sweden}, doi = {10.1109/CoASE.2015.7294217}, pages = {924 -- 929}, year = {2015}, language = {en} } @book{EngelnMuellgesNiederdrenkWodicka2005, author = {Engeln-M{\"u}llges, Gisela and Niederdrenk, Klaus and Wodicka, Reinhard}, title = {Numerik-Algorithmen : Verfahren, Beispiele, Anwendungen. - 9., vollst. {\"u}berarb. und erw. Aufl.}, publisher = {Springer}, address = {Berlin [u.a.]}, isbn = {3-540-62669-7}, pages = {XXI, 677 S. : zahlr. graph. Darst. + 2 CD-ROMs}, year = {2005}, language = {de} } @article{HaagZontarSchleupenetal.2014, author = {Haag, S. and Zontar, D. and Schleupen, Josef and M{\"u}ller, T. and Brecher, C.}, title = {Chain of refined perception in self-optimizing assembly of micro-optical systems}, series = {Journal of sensors and sensor systems}, volume = {3}, journal = {Journal of sensors and sensor systems}, number = {1}, publisher = {Copernicus Publ.}, address = {G{\"o}ttingen}, issn = {2194-878X}, doi = {10.5194/jsss-3-87-2014}, pages = {87 -- 95}, year = {2014}, abstract = {Today, the assembly of laser systems requires a large share of manual operations due to its complexity regarding the optimal alignment of optics. Although the feasibility of automated alignment of laser optics has been shown in research labs, the development effort for the automation of assembly does not meet economic requirements - especially for low-volume laser production. This paper presents a model-based and sensor-integrated assembly execution approach for flexible assembly cells consisting of a macro-positioner covering a large workspace and a compact micromanipulator with camera attached to the positioner. In order to make full use of available models from computer-aided design (CAD) and optical simulation, sensor systems at different levels of accuracy are used for matching perceived information with model data. This approach is named "chain of refined perception", and it allows for automated planning of complex assembly tasks along all major phases of assembly such as collision-free path planning, part feeding, and active and passive alignment. The focus of the paper is put on the in-process image-based metrology and information extraction used for identifying and calibrating local coordinate systems as well as the exploitation of that information for a part feeding process for micro-optics. Results will be presented regarding the processes of automated calibration of the robot camera as well as the local coordinate systems of part feeding area and robot base.}, 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} } @book{Gebhardt2016, author = {Gebhardt, Andreas}, title = {Additive Fertigungsverfahren : Additive Manufacturing und 3D-Drucken f{\"u}r Prototyping - Tooling - Produktion}, edition = {5. aktualisierte und erweiterte Auflage}, publisher = {Hanser}, address = {M{\"u}nchen}, isbn = {978-3-446-44401-0 ; 978-3-446-44539-0}, doi = {10.3139/9783446445390}, pages = {XXIV, 711 S. : zahlr. Ill. u. graph. Darst.}, year = {2016}, language = {de} } @inproceedings{KesslerBalcGebhardt2016, author = {Kessler, Julia and Balc, Nicolae and Gebhardt, Andreas}, title = {Basic research on lattice structures focused on the strut shape and welding beads}, series = {Physics Procedia}, volume = {Vol. 83}, booktitle = {Physics Procedia}, issn = {1875-3884}, doi = {10.1016/j.phpro.2016.08.086}, pages = {833 -- 838}, year = {2016}, language = {en} } @book{Feuerriegel2016, author = {Feuerriegel, Uwe}, title = {Verfahrenstechnik mit EXCEL: Verfahrenstechnische Berechnungen effektiv durchf{\"u}hren und professionell dokumentieren}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, isbn = {978-3-658-02902-9}, doi = {10.1007/978-3-658-02903-6}, pages = {XVII, 381 Seiten}, year = {2016}, language = {de} } @article{MichauxMatternKallweit2018, author = {Michaux, F. and Mattern, P. and Kallweit, Stephan}, title = {RoboPIV: how robotics enable PIV on a large industrial scale}, series = {Measurement Science and Technology}, volume = {29}, journal = {Measurement Science and Technology}, number = {7}, publisher = {IOP}, address = {Bristol}, issn = {1361-6501}, doi = {10.1088/1361-6501/aab5c1}, pages = {074009}, year = {2018}, abstract = {This work demonstrates how the interaction between particle image velocimetry (PIV) and robotics can massively increase measurement efficiency. The interdisciplinary approach is shown using the complex example of an automated, large scale, industrial environment: a typical automotive wind tunnel application. Both the high degree of flexibility in choosing the measurement region and the complete automation of stereo PIV measurements are presented. The setup consists of a combination of three robots, individually used as a 6D traversing unit for the laser illumination system as well as for each of the two cameras. Synchronised movements in the same reference frame are realised through a master-slave setup with a single interface to the user. By integrating the interface into the standard wind tunnel management system, a single measurement plane or a predefined sequence of several planes can be requested through a single trigger event, providing the resulting vector fields within minutes. In this paper, a brief overview on the demands of large scale industrial PIV and the existing solutions is given. Afterwards, the concept of RoboPIV is introduced as a new approach. In a first step, the usability of a selection of commercially available robot arms is analysed. The challenges of pose uncertainty and importance of absolute accuracy are demonstrated through comparative measurements, explaining the individual pros and cons of the analysed systems. Subsequently, the advantage of integrating RoboPIV directly into the existing wind tunnel management system is shown on basis of a typical measurement sequence. In a final step, a practical measurement procedure, including post-processing, is given by using real data and results. Ultimately, the benefits of high automation are demonstrated, leading to a drastic reduction in necessary measurement time compared to non-automated systems, thus massively increasing the efficiency of PIV measurements.}, 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} } @inproceedings{RieperGebhardtStucker2016, author = {Rieper, Harald and Gebhardt, Andreas and Stucker, Brent}, title = {Process parameters for Selective Laser Melting of AgCu7}, series = {DDMC, Fraunhofer Direct Digital Manufacturing Conference, 3}, booktitle = {DDMC, Fraunhofer Direct Digital Manufacturing Conference, 3}, publisher = {Fraunhofer-Verlag}, address = {Stuttgart}, isbn = {978-3-8396-1001-5}, pages = {171 -- 176}, year = {2016}, language = {en} } @article{Thomas2019, author = {Thomas, Axel}, title = {Die Wiederbelebung der Mitarbeiterwohnungsidee bei kommunalen Unternehmen}, series = {VM Verwaltung und Management}, volume = {25}, journal = {VM Verwaltung und Management}, number = {6}, publisher = {Nomos-Verl.-Ges.}, address = {Baden-Baden}, issn = {0947-9856}, doi = {10.5771/0947-9856-2019-6-286}, pages = {286 -- 291}, year = {2019}, language = {de} } @article{WilbringEnning2019, author = {Wilbring, Daniela and Enning, Manfred}, title = {Stromversorgung auf G{\"u}terwagen - Aktuelle Bem{\"u}hungen zur Standardisierung}, series = {ETR - Eisenbahntechnische Rundschau}, volume = {68}, journal = {ETR - Eisenbahntechnische Rundschau}, number = {11}, publisher = {DVV Media Group}, address = {Hamburg}, issn = {0013-2845}, pages = {64 -- 67}, year = {2019}, language = {de} } @book{GebhardtKesslerSchwarz2019, author = {Gebhardt, Andreas and Kessler, Julia and Schwarz, Alexander}, title = {Produktgestaltung f{\"u}r die additive Fertigung}, publisher = {Hanser}, address = {M{\"u}nchen}, isbn = {978-3-446-45285-5}, pages = {XVI, 266 Seiten : Illustrationen, Diagramme}, year = {2019}, language = {de} } @inproceedings{GerhardsSchleserOttenetal.2019, author = {Gerhards, Benjamin and Schleser, Markus and Otten,, Christian and Schwarz, Alexander and Gebhardt, Andreas}, title = {Innovative Laser Beam Joining Technology for Additive Manufactured Parts}, series = {Conference Proceedings 72nd IIW Annual Assembly and International Conference, 7-12 July 2019, Bratislava}, booktitle = {Conference Proceedings 72nd IIW Annual Assembly and International Conference, 7-12 July 2019, Bratislava}, pages = {1 -- 8}, year = {2019}, language = {en} } @inproceedings{GerhardsSchleserOtten2019, author = {Gerhards, Benjamin and Schleser, Markus and Otten, Christian}, title = {Advancements of mobile vacuum laser welding for industrial thick sheet applications}, series = {Conference Proceedings 72nd IIW Annual Assembly and International Conference, 7-12 July 2019, Bratislava}, booktitle = {Conference Proceedings 72nd IIW Annual Assembly and International Conference, 7-12 July 2019, Bratislava}, pages = {1 -- 8}, year = {2019}, language = {en} } @article{WollbrinkMasloZimmeretal.2020, author = {Wollbrink, Moritz and Maslo, Semir and Zimmer, Daniel and Abbas, Karim and Arntz, Kristian and Bergs, Thomas}, title = {Clamping and substrate plate system for continuous additive build-up and post-processing of metal parts}, series = {Procedia CIRP}, volume = {93}, journal = {Procedia CIRP}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {10.1016/j.procir.2020.04.015}, pages = {108 -- 113}, year = {2020}, abstract = {The manufacturing share of laser powder bed fusion (L-PBF) increases in industrial application, but still many process steps are manually operated. Additionally, it is not possible to achieve tight dimensional tolerances or low surfaces roughness. Hence, a process chain has to be set up to combine additive manufacturing (AM) with further machining technologies. To achieve a continuous workpiece flow as basis for further industrialization of L-PBF, the paper presents a novel substrate system and its application on L-PBF machines and post-processing. The substrate system consists of a zero-point clamping system and a matrix-like interface of contact pins to be substantially connected to the workpiece within the L-PBF process.}, language = {en} } @incollection{FateriGebhardt2020, author = {Fateri, Miranda and Gebhardt, Andreas}, title = {Introduction to Additive Manufacturing}, series = {3D Printing of Optical Components}, booktitle = {3D Printing of Optical Components}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-58960-8}, doi = {10.1007/978-3-030-58960-8_1}, pages = {1 -- 22}, year = {2020}, abstract = {Additive manufacturing (AM) works by creating objects layer by layer in a manner similar to a 2D printer with the "printed" layers stacked on top of each other. The layer-wise manufacturing nature of AM enables fabrication of freeform geometries which cannot be fabricated using conventional manufacturing methods as a one part. Depending on how each layer is created and bonded to the adjacent layers, different AM methods have been developed. In this chapter, the basic terms, common materials, and different methods of AM are described, and their potential applications are discussed.}, language = {en} } @incollection{GebhardtHoetter2019, author = {Gebhardt, Andreas and Hoetter, Jan-Steffen}, title = {Rapid Tooling}, series = {CIRP Encyclopedia of Production Engineering}, booktitle = {CIRP Encyclopedia of Production Engineering}, publisher = {Springer}, address = {Berlin, Heidelberg}, isbn = {978-3-662-53120-4}, doi = {10.1007/978-3-662-53120-4}, pages = {39 -- 52}, year = {2019}, language = {en} } @book{Schmidt2019, author = {Schmidt, Bernd}, title = {Grundlagen der Elektrotechnik und Elektronik f{\"u}r Ingenieure der Schienenfahrzeugtechnik und anderer Fachrichtungen : neu mit neuem SI-System und weiteren Inhalten f{\"u}r Mechantroniker}, edition = {3. vollst{\"a}ndig {\"u}berarbeitete Auflage}, publisher = {B. Schmidt, Fachverlag f{\"u}r Elektro- und Informationstechnik}, address = {Bielefeld}, isbn = {978-3-944131-04-7}, pages = {XXVI, 270 Seiten : Illustrationen, Diagramme}, year = {2019}, language = {de} } @book{Schmidt2016, author = {Schmidt, Bernd}, title = {Grundlagen der Elektrotechnik und Elektronik f{\"u}r Ingenieure der Schienenfahrzeugtechnik und anderer Fachrichtungen}, edition = {1. Aufl.}, publisher = {B. Schmidt, Fachverlag f{\"u}r Elektro- und Informationstechnik}, address = {Bielefeld}, isbn = {978-3-944131-02-3}, pages = {XXIII, 255 Seiten : Illustrationen}, year = {2016}, language = {de} } @book{Schmidt2017, author = {Schmidt, Bernd}, title = {Grundlagen der Elektrotechnik und Elektronik f{\"u}r Ingenieure der Schienenfahrzeugtechnik und anderer Fachrichtungen : mit 12 Tabellen und 221 Abbildungen ; NEU mit Verst{\"a}ndnisaufgaben und L{\"o}sungsbeispielen}, edition = {2. vollst{\"a}ndig {\"u}berarbeitete Auflage}, publisher = {B. Schmidt, Fachverlag f{\"u}r Elektro- und Informationstechnik}, address = {Bielefeld}, isbn = {978-3-944131-03-0}, pages = {XXV, 307 Seiten : Illustrationen, Diagramme}, year = {2017}, language = {de} } @article{ReisgenSchaeferWilmsetal.2017, author = {Reisgen, Uwe and Sch{\"a}fer, Johannes and Wilms, Konrad and Schleser, Markus}, title = {Aufmischungsarmes, dickschichtiges MSG-Auftragschweißen mit entkoppelter Zweidrahttechnik}, series = {Schweißen und Schneiden}, volume = {69}, journal = {Schweißen und Schneiden}, number = {12}, publisher = {DVS Verlag}, address = {D{\"u}sseldorf}, issn = {0036-7184}, pages = {838 -- 843}, year = {2017}, abstract = {F{\"u}r Auftragschweißaufgaben existiert eine Vielzahl an verfahrenstechnischen Prozessvarianten, die je nach Charakteristik und Anwendungsfall ausgew{\"a}hlt werden. Ein Nachteil der vorwiegend verwendeten Metall- Schutzgasschweißprozesse (MSG) f{\"u}r das Auftragschweißen ist durch die direkte Kopplung von Drahtvorschub zu Energieeintrag gegeben. Die vorgestellte Zweidraht-Prozessvariante kann durch die Ausbildung eines {\"u}bertragenen und eines nicht-{\"u}bertragenen Lichtbogens die elektrische Leistung beider Lichtb{\"o}gen variieren und damit einen direkten Einfluss auf die Prozessgr{\"o}ßen Abschmelzleistung und Aufschmelzgrad nehmen. Im Speziellen besteht {\"u}ber die Entkopplung von Drahtvorschub zu Schweißstromst{\"a}rke die M{\"o}glichkeit eines niederenergetischen Betriebs trotz hoher Drahtvorschubgeschwindigkeit. Damit lassen sich Aufschmelzgrade unter 2\% umsetzen und Abschmelzleistungen bis zu 15 kg/h realisieren.}, language = {de} } @inproceedings{KleineKallweitMichauxetal.2016, author = {Kleine, Harald and Kallweit, Stephan and Michaux, Frank and Havermann, Marc and Olivier, Herbert}, title = {PIV Measurement of Shock Wave Diffraction}, series = {18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2016, Lissabon}, booktitle = {18th International Symposium on Applications of Laser Techniques to Fluid Mechanics, 2016, Lissabon}, pages = {1 -- 14}, year = {2016}, language = {en} } @inproceedings{SchleupenEngemannBagherietal.2016, author = {Schleupen, Josef and Engemann, Heiko and Bagheri, Mohsen and Kallweit, Stephan}, title = {The potential of SMART climbing robot combined with a weatherproof cabin for rotor blade maintenance}, series = {17th European Conference on Composite Materials - ECCM, Munich, Germany}, booktitle = {17th European Conference on Composite Materials - ECCM, Munich, Germany}, pages = {1 -- 8}, year = {2016}, language = {en} } @inproceedings{EnningFratscher2017, author = {Enning, Manfred and Fratscher, Ren{\´e}}, title = {Funk-Kommunikation f{\"u}r G{\"u}terwagen: Prinzipien und Anwendungsbeispiel}, series = {IRSA International Railway Symposium Aachen}, booktitle = {IRSA International Railway Symposium Aachen}, pages = {1 -- 16}, year = {2017}, language = {de} } @article{Reichert2017, author = {Reichert, Walter}, title = {Berufseinstieg f{\"u}r Wirtschaftsingenieure - Bachelor oder Master?}, series = {Berufsstart}, journal = {Berufsstart}, year = {2017}, language = {de} } @article{KlockeRichertSube2018, author = {Klocke, Martina and Richert, Vera and Sube, Maike}, title = {Vier Jahre „Guter Studienstart im Ingenieurbereich": Entwicklung und Perspektiven des „Nullten Semesters" in Aachen}, series = {Zeitschrift f{\"u}r Beratung und Studium}, volume = {13}, journal = {Zeitschrift f{\"u}r Beratung und Studium}, number = {1}, publisher = {Universit{\"a}tsverlag Webler}, address = {Bielefeld}, issn = {1860-3068}, pages = {17 -- 22}, year = {2018}, abstract = {Bereits 2015 wurde in der Zeitschrift „Qualit{\"a}t in der Wissenschaft" (QiW) {\"u}ber das Kooperationsprojekt „Guter Studienstart im Ingenieurbereich", das Orientierungssemester von RWTH und FH Aachen, berichtet. In diesem Artikel legen wir den Schwerpunkt auf die Entwicklung des Projekts in den Jahren 2015 bis 2018 und geben eine R{\"u}ckschau sowie einen Ausblick auf die Entwicklungsperspektiven nach dem offiziellen Projektende.}, language = {de} } @article{Thomas2018, author = {Thomas, Axel}, title = {Technologiezentren in der Aachener Region - Retrospektiven und Perspektiven}, series = {VM Verwaltung und Management}, volume = {24}, journal = {VM Verwaltung und Management}, number = {3}, publisher = {Nomos}, address = {Baden-Baden}, issn = {0947-9856}, doi = {10.5771/0947-9856-2018-3-147}, pages = {147 -- 156}, year = {2018}, language = {de} } @article{Thomas2018, author = {Thomas, Axel}, title = {Zielerreichungen der Technologie- und Gr{\"u}nderzentren aus Sicht der kommunalen Finanzwirtschaft - dargestellt am Beispiel der Aachener Region}, series = {Der Gemeindehaushalt}, volume = {119}, journal = {Der Gemeindehaushalt}, number = {7}, publisher = {Kohlhammer}, address = {Stuttgart}, issn = {0340-3645}, pages = {149 -- 155}, year = {2018}, language = {de} } @inproceedings{WiesenEngemannLimpertetal.2018, author = {Wiesen, Patrick and Engemann, Heiko and Limpert, Nicolas and Kallweit, Stephan}, title = {Learning by Doing - Mobile Robotics in the FH Aachen ROS Summer School}, series = {European Robotics Forum 2018, TRROS18 Workshop}, booktitle = {European Robotics Forum 2018, TRROS18 Workshop}, pages = {47 -- 58}, year = {2018}, language = {en} } @incollection{KlockeKatz2017, author = {Klocke, Martina and Katz, Christiane}, title = {Heterogenit{\"a}t von MINT-Studierenden als Herausforderung}, series = {Tagungsband zum 3. Symposium zur Hochschullehre in den MINT-F{\"a}chern}, booktitle = {Tagungsband zum 3. Symposium zur Hochschullehre in den MINT-F{\"a}chern}, publisher = {Technische Hochschule N{\"u}rnberg Georg Simon Ohm}, address = {N{\"u}rnberg}, pages = {31 -- 36}, year = {2017}, language = {de} } @incollection{Klocke2018, author = {Klocke, Martina}, title = {Schulter an Schulter - Zusammenarbeit in einem differenzierten Hochschulsystem}, series = {Lehre und Lehrentwicklung an Fachhochschulen - Festschrift f{\"u}r Prof. Dr. med. W. Huhn}, booktitle = {Lehre und Lehrentwicklung an Fachhochschulen - Festschrift f{\"u}r Prof. Dr. med. W. Huhn}, publisher = {Waxmann}, address = {M{\"u}nster}, isbn = {978-3-8309-3782-1}, pages = {75 -- 80}, year = {2018}, language = {de} } @inproceedings{WiesenSchleser2019, author = {Wiesen, Andreas and Schleser, Markus}, title = {Entwicklung einer Qualit{\"a}tssicherung f{\"u}r das Laserstrahlschweißen im Vakuum mittels Bildverarbeitung}, series = {Große Schweißtechnische Tagung}, booktitle = {Große Schweißtechnische Tagung}, publisher = {DVS-Media}, address = {D{\"u}sseldorf}, isbn = {978-3-96144-066-5}, pages = {1 -- 6}, year = {2019}, language = {de} } @inproceedings{OttenGerhardsSchleseretal.2019, author = {Otten, Christian and Gerhards, Benjamin and Schleser, Markus and Schwarz, A. and Gebhardt, Andreas}, title = {Innovative Laserschweißtechnologie f{\"u}r additiv gefertigte Bauteile}, series = {Große Schweißtechnische Tagung}, booktitle = {Große Schweißtechnische Tagung}, publisher = {DVS-Media}, address = {D{\"u}sseldorf}, isbn = {978-3-96144-066-5}, pages = {150 -- 157}, year = {2019}, language = {de} } @incollection{FiedlerHennMelcher2015, author = {Fiedler, Gerda and Henn, Gudrun and Melcher, Karin}, title = {ANPAK - Ein Anpassungskurs f{\"u}r Studienanf{\"a}nger in den Ingenieurwissenschaften}, series = {Qualifizierung von Studierenden im Student-Life-Cycle. Tagungsband zum Mosbacher Tag der Lehre am 23.10.2014 /}, booktitle = {Qualifizierung von Studierenden im Student-Life-Cycle. Tagungsband zum Mosbacher Tag der Lehre am 23.10.2014 /}, editor = {Morschheuser, Petra}, publisher = {Duale Hochschule Baden-W{\"u}rttemberg (DHBW)}, address = {Mosbach}, isbn = {978-3-943656-02-2}, pages = {90 -- 93}, year = {2015}, language = {de} } @article{CosmaKesslerGebhardtetal.2020, author = {Cosma, Cosmin and Kessler, Julia and Gebhardt, Andreas and Campbell, Ian and Balc, Nicolae}, title = {Improving the Mechanical Strength of Dental Applications and Lattice Structures SLM Processed}, series = {Materials}, volume = {13}, journal = {Materials}, number = {4}, publisher = {MDPI}, address = {Basel}, issn = {1996-1944}, doi = {10.3390/ma13040905}, pages = {1 -- 18}, year = {2020}, abstract = {To manufacture custom medical parts or scaffolds with reduced defects and high mechanical characteristics, new research on optimizing the selective laser melting (SLM) parameters are needed. In this work, a biocompatible powder, 316L stainless steel, is characterized to understand the particle size, distribution, shape and flowability. Examination revealed that the 316L particles are smooth, nearly spherical, their mean diameter is 39.09 μm and just 10\% of them hold a diameter less than 21.18 μm. SLM parameters under consideration include laser power up to 200 W, 250-1500 mm/s scanning speed, 80 μm hatch spacing, 35 μm layer thickness and a preheated platform. The effect of these on processability is evaluated. More than 100 samples are SLM-manufactured with different process parameters. The tensile results show that is possible to raise the ultimate tensile strength up to 840 MPa, adapting the SLM parameters for a stable processability, avoiding the technological defects caused by residual stress. Correlating with other recent studies on SLM technology, the tensile strength is 20\% improved. To validate the SLM parameters and conditions established, complex bioengineering applications such as dental bridges and macro-porous grafts are SLM-processed, demonstrating the potential to manufacture medical products with increased mechanical resistance made of 316L.}, language = {en} } @book{Feuerriegel2021, author = {Feuerriegel, Uwe}, title = {W{\"a}rme{\"u}bertragung mit EXCEL und VBA: W{\"a}rmetechnische Berechnungen und Simulationen effektiv durchf{\"u}hren und professionell dokumentieren}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-35905-8}, doi = {10.1007/978-3-658-35906-5}, pages = {XX, 439 Seiten}, year = {2021}, abstract = {Dieses Lehrbuch vermittelt die Grundlagen der W{\"a}rme{\"u}bertragung sowie den Umgang mit EXCEL-VBA von der Erstellung von Makros bis zu benutzerdefinierten Funktionen. Es legt damit eine Basis f{\"u}r die schnelle und professionelle Durchf{\"u}hrung von Berechnungen und Simulationen. Die angeleitete Erstellung von Berechnungsmodulen mit EXCEL und VBA aus allen wichtigen Bereichen der W{\"a}rme{\"u}bertragung bildet den inhaltlichen Schwerpunkt. Dazu z{\"a}hlen die station{\"a}re W{\"a}rmeleitung und der station{\"a}re W{\"a}rmedurchgang, die instation{\"a}re W{\"a}rmeleitung, der W{\"a}rme{\"u}bergang bei freier und erzwungener Konvektion sowie die W{\"a}rmestrahlung und der W{\"a}rme{\"u}bergang beim Kondensieren und Sieden. Soweit sinnvoll und m{\"o}glich werden die Stoffwertekorrelationen und die Berechnungsvorschriften aus dem VDI-W{\"a}rmeatlas verwendet. F{\"u}r ausgew{\"a}hlte Anwendungen werden zudem komplexere Auslegungen und Simulationen von Prozessen der W{\"a}rme{\"u}bertragung sowie von W{\"a}rme{\"u}bertragern erstellt. Die Zielgruppen: Studierende in Bachelor- und Masterstudieng{\"a}ngen, Praktiker im Engineering}, language = {de} } @inproceedings{FiedlerGottschlichMuellerMelcher2021, author = {Fiedler, Gerda and Gottschlich-M{\"u}ller, Birgit and Melcher, Karin}, title = {Online-Pr{\"u}fungen mit STACK Aufgaben}, series = {Tagungsband ASIM Workshop STS/GMMS/EDU 2021}, booktitle = {Tagungsband ASIM Workshop STS/GMMS/EDU 2021}, editor = {Liu-Henke, Xiaobo and Durak, Umut}, publisher = {ARGESIM Verlag}, address = {Wien}, isbn = {978-3-901608-69-8}, doi = {10.11128/arep.45}, pages = {173 -- 178}, year = {2021}, abstract = {Wir stellen hier exemplarisch STACK Aufgaben vor, die frei von der Problematik sind, welche sich durch diverse Kommunikationswege und (webbasierte) Computer Algebra Systeme (CAS) ergibt. Daher sind sie insbesondere f{\"u}r eine Open-Book Online Pr{\"u}fung geeignet, da eine faire Pr{\"u}fungssituation gew{\"a}hrleistet werden kann.}, language = {de} } @article{KosterScheidweilerTieves2016, author = {Koster, Arie and Scheidweiler, Robert and Tieves, Martin}, title = {A flow based pruning scheme for enumerative equitable coloring algorithms}, series = {A flow based pruning scheme for enumerative equitable coloring algorithms}, journal = {A flow based pruning scheme for enumerative equitable coloring algorithms}, doi = {10.48550/arXiv.1607.08754}, pages = {1 -- 30}, year = {2016}, abstract = {An equitable graph coloring is a proper vertex coloring of a graph G where the sizes of the color classes differ by at most one. The equitable chromatic number is the smallest number k such that G admits such equitable k-coloring. We focus on enumerative algorithms for the computation of the equitable coloring number and propose a general scheme to derive pruning rules for them: We show how the extendability of a partial coloring into an equitable coloring can be modeled via network flows. Thus, we obtain pruning rules which can be checked via flow algorithms. Computational experiments show that the search tree of enumerative algorithms can be significantly reduced in size by these rules and, in most instances, such naive approach even yields a faster algorithm. Moreover, the stability, i.e., the number of solved instances within a given time limit, is greatly improved. Since the execution of flow algorithms at each node of a search tree is time consuming, we derive arithmetic pruning rules (generalized Hall-conditions) from the network model. Adding these rules to an enumerative algorithm yields an even larger runtime improvement.}, language = {en} } @article{BeckenbachScheidweiler2016, author = {Beckenbach, Isabel and Scheidweiler, Robert}, title = {Perfect ƒ-Matchings and ƒ-Factors in Hypergraphs - A Combinatorial Approach}, series = {Discrete Mathematics}, volume = {240}, journal = {Discrete Mathematics}, number = {10}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2192-7782}, doi = {10.1016/j.disc.2017.05.005}, pages = {2499 -- 2506}, year = {2016}, abstract = {We prove characterizations of the existence of perfect ƒ-matchings in uniform mengerian and perfect hypergraphs. Moreover, we investigate the ƒ-factor problem in balanced hypergraphs. For uniform balanced hypergraphs we prove two existence theorems with purely combinatorial arguments, whereas for non-uniform balanced hypergraphs we show that the ƒ-factor problem is NP-hard.}, language = {en} } @article{ScheidweilerTriesch2016, author = {Scheidweiler, Robert and Triesch, Eberhard}, title = {A note on the duality between matchings and vertex covers in balanced hypergraphs}, series = {Journal of Combinatorial Optimization}, volume = {32}, journal = {Journal of Combinatorial Optimization}, number = {2}, publisher = {Springer}, address = {Berlin}, issn = {1573-2886}, doi = {10.1007/s10878-015-9887-5}, pages = {639 -- 644}, year = {2016}, abstract = {We present a new Min-Max theorem for an optimization problem closely connected to matchings and vertex covers in balanced hypergraphs. The result generalizes Kőnig's Theorem (Berge and Las Vergnas in Ann N Y Acad Sci 175:32-40, 1970; Fulkerson et al. in Math Progr Study 1:120-132, 1974) and Hall's Theorem (Conforti et al. in Combinatorica 16:325-329, 1996) for balanced hypergraphs.}, language = {en} } @article{KilicRaatschenKoerfgenetal.2017, author = {Kilic, S. A. and Raatschen, Hans-J{\"u}rgen and K{\"o}rfgen, B. and Apaydin, N. M. and Astaneh-Asl, A.}, title = {FE Model of the Fatih Sultan Mehmet Suspension Bridge Using Thin Shell Finite Elements}, series = {Arabian Journal for Science and Engineering}, volume = {42}, journal = {Arabian Journal for Science and Engineering}, number = {3}, publisher = {Springer Nature}, issn = {2191-4281}, doi = {10.1007/s13369-016-2316-y}, pages = {1103 -- 1116}, year = {2017}, abstract = {This paper presents the results of an eigenvalue analysis of the Fatih Sultan Mehmet Bridge. A high-resolution finite element model was created directly from the available design documents. All physical properties of the structural components were included in detail, so no calibration to the measured data was necessary. The deck and towers were modeled with shell elements. A nonlinear static analysis was performed before the eigenvalue calculation. The calculated natural frequencies and corresponding mode shapes showed good agreement with the available measured ambient vibration data. The calculation of the effective modal mass showed that nine modes had single contributions higher than 5 \% of the total mass. They were in a frequency range up to 1.2 Hz. The comparison of the results for the torsional modes especially demonstrated the advantage of using thin shell finite elements over the beam modeling approach.}, language = {en} } @inproceedings{EngemannWiesenKallweitetal.2018, author = {Engemann, Heiko and Wiesen, Patrick and Kallweit, Stephan and Deshpande, Harshavardhan and Schleupen, Josef}, title = {Autonomous mobile manipulation using ROS}, series = {Advances in Service and Industrial Robotics}, booktitle = {Advances in Service and Industrial Robotics}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-61276-8}, doi = {10.1007/978-3-319-61276-8_43}, pages = {389 -- 401}, year = {2018}, language = {en} } @inproceedings{FateriGebhardtRenftle2015, author = {Fateri, Miranda and Gebhardt, Andreas and Renftle, Georg}, title = {Additive manufacturing of drainage segments for cooling system of crucible melting furnaces}, series = {Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials II, International Symposium on Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials, ICACC 15, 39th International Conference on Advanced Ceramics and Composites, Daytona Beach, FL, US, Jan 25-30, 2015}, booktitle = {Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials II, International Symposium on Advanced Processing and Manufacturing Technologies for Structural and Multifunctional Materials, ICACC 15, 39th International Conference on Advanced Ceramics and Composites, Daytona Beach, FL, US, Jan 25-30, 2015}, publisher = {Wiley}, address = {Hoboken}, issn = {0196-6219}, doi = {10.1002/9781119211662.ch14}, pages = {123 -- 131}, year = {2015}, language = {en} } @inproceedings{EngemannBadriWenningetal.2019, author = {Engemann, Heiko and Badri, Sriram and Wenning, Marius and Kallweit, Stephan}, title = {Implementation of an Autonomous Tool Trolley in a Production Line}, series = {Advances in Service and Industrial Robotics. RAAD 2019. Advances in Intelligent Systems and Computing, vol 980}, booktitle = {Advances in Service and Industrial Robotics. RAAD 2019. Advances in Intelligent Systems and Computing, vol 980}, publisher = {Springer}, address = {Cham}, isbn = {978-3-030-19648-6}, doi = {10.1007/978-3-030-19648-6_14}, pages = {117 -- 125}, year = {2019}, language = {en} } @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{BucurLazarescuPopetal.2019, author = {Bucur, Alexandru and Lazarescu, Lucian and Pop, Grigore Marian and Achimas, Gheorghe and Gebhardt, Andreas}, title = {Tribological performance of biodegradable lubricants under different surface roughness of tools}, series = {Academic Journal of Manufacturing Engineering}, volume = {17}, journal = {Academic Journal of Manufacturing Engineering}, number = {1}, issn = {1583-7904}, pages = {172 -- 178}, year = {2019}, language = {en} } @article{FrankoDuKallweitetal.2020, author = {Franko, Josef and Du, Shengzhi and Kallweit, Stephan and Duelberg, Enno Sebastian and Engemann, Heiko}, title = {Design of a Multi-Robot System for Wind Turbine Maintenance}, series = {Energies}, volume = {13}, journal = {Energies}, number = {10}, publisher = {MDPI}, address = {Basel}, issn = {1996-1073}, doi = {10.3390/en13102552}, pages = {Article 2552}, year = {2020}, abstract = {The maintenance of wind turbines is of growing importance considering the transition to renewable energy. This paper presents a multi-robot-approach for automated wind turbine maintenance including a novel climbing robot. Currently, wind turbine maintenance remains a manual task, which is monotonous, dangerous, and also physically demanding due to the large scale of wind turbines. Technical climbers are required to work at significant heights, even in bad weather conditions. Furthermore, a skilled labor force with sufficient knowledge in repairing fiber composite material is rare. Autonomous mobile systems enable the digitization of the maintenance process. They can be designed for weather-independent operations. This work contributes to the development and experimental validation of a maintenance system consisting of multiple robotic platforms for a variety of tasks, such as wind turbine tower and rotor blade service. In this work, multicopters with vision and LiDAR sensors for global inspection are used to guide slower climbing robots. Light-weight magnetic climbers with surface contact were used to analyze structure parts with non-destructive inspection methods and to locally repair smaller defects. Localization was enabled by adapting odometry for conical-shaped surfaces considering additional navigation sensors. Magnets were suitable for steel towers to clamp onto the surface. A friction-based climbing ring robot (SMART— Scanning, Monitoring, Analyzing, Repair and Transportation) completed the set-up for higher payload. The maintenance period could be extended by using weather-proofed maintenance robots. The multi-robot-system was running the Robot Operating System (ROS). Additionally, first steps towards machine learning would enable maintenance staff to use pattern classification for fault diagnosis in order to operate safely from the ground in the future.}, 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} } @inproceedings{AdenackerGerhardsOttenetal.2021, author = {Adenacker, J. and Gerhards, Benjamin and Otten, Christian and Schleser, Markus}, title = {Laserstrahlschweißen von Aluminium-Kupfer-Werkstoffkombinationen f{\"u}r die Elektromobilit{\"a}t}, series = {DVS CONGRESS 2021}, booktitle = {DVS CONGRESS 2021}, publisher = {DVS Media GmbH}, address = {D{\"u}sseldorf}, isbn = {978-3-96144-146-4}, pages = {31 -- 38}, year = {2021}, language = {de} } @article{ZabirovSchleserBucherer2021, author = {Zabirov, Alexander and Schleser, Markus and Bucherer, Sebastian}, title = {F{\"u}ge- und Dichtkonzept f{\"u}r einen Leichtbauverbrennungsmotor}, series = {adh{\"a}sion KLEBEN \& DICHTEN}, volume = {65}, journal = {adh{\"a}sion KLEBEN \& DICHTEN}, number = {11}, publisher = {Springer Nature}, address = {Cham}, issn = {2192-8681}, doi = {10.1007/s35145-021-0531-5}, pages = {12 -- 19}, year = {2021}, language = {de} } @inproceedings{KesslerBalcGebhardtetal.2017, author = {Kessler, Julia and Balc, Nicolae and Gebhardt, Andreas and Abbas, Karim}, title = {Basic research on lattice structures focused on the reliance of the cross sectional area and additional coatings}, series = {The 4th International Conference on Computing and Solutions in Manufacturing Engineering 2016 - CoSME'16}, booktitle = {The 4th International Conference on Computing and Solutions in Manufacturing Engineering 2016 - CoSME'16}, edition = {Vol. 94}, doi = {10.1051/matecconf/20179403008}, pages = {7 S.}, year = {2017}, language = {en} } @article{Thomas2016, author = {Thomas, Axel}, title = {Genussrechte als Instrument der Unternehmensfinanzierung von kommunalen Wohnungs- baugesellschaften}, series = {VM Verwaltung und Management}, volume = {22}, journal = {VM Verwaltung und Management}, number = {6}, publisher = {Nomos}, address = {Baden-Baden}, issn = {0947-9856}, doi = {10.5771/0947-9856-2016-6-322}, pages = {322 -- 327}, year = {2016}, abstract = {Die kommunalen Wohnungsbaugesellschaften und ihr Gesch{\"a}ftszweck bzw. Versorgungsauftrag erfahren aus gesamtgesellschaftlichen Gr{\"u}nden aktuell einen erheblichen Bedeutungszuwachs. Der kommunale Wohnungsbau soll und muss intensiviert werden, da z.B. zunehmend Wohnungsbindungen auslaufen. Bezahlbare Neubauten fehlen speziell Familien, Senioren, Studenten und Fl{\"u}chtlingen. Um das Investitionsvolumen zu bew{\"a}ltigen, bedarf es nicht nur der F{\"o}rderkredite, sondern auch der Zuf{\"u}hrung „frischen Kapitals". Der Beitrag stellt dar, dass Genussrechte ein interessantes und oft unbekanntes Finanzierungsinstrument f{\"u}r kommunale Wohnungsbaugesellschaften mit passgenauen Ausgestaltungsm{\"o}glichkeiten sind. Mit Hilfe von Genussrechten k{\"o}nnen die notwendigen Neubau-Investitionen solide mit Quasi-Eigenkapital unterlegt werden und den sozialen Wohnungsbau wiederbeleben. Genussrechte als Hybridkapital lassen sich mangels gesetzlicher Eingrenzung exakt und individuell ebenso an die Bed{\"u}rfnisse der kommunalen Wohnungsbaugesellschaft anpassen wie an die der Gesellschafter und des jeweiligen Neubauvorhabens.}, language = {de} } @article{Enning2017, author = {Enning, Manfred}, title = {Vom "K{\"o}nig der Landstraße" zur "Ameise 4.0"}, series = {ETR - Eisenbahntechnische Rundschau}, volume = {66}, journal = {ETR - Eisenbahntechnische Rundschau}, number = {1/2}, publisher = {DVV Media Group}, address = {Hamburg}, issn = {0013-2845}, pages = {3}, year = {2017}, abstract = {Auf Eisenbahn- und Logistikkonferenzen werden gelegentlich Videos von Blattschneiderameisen gezeigt, die effizient und selbstorganisiert große Mengen Material durch den Dschungel transportieren. Daran sollen wir uns ein Beispiel nehmen.}, language = {de} } @article{KampkerSchleserTriebsetal.2018, author = {Kampker, Achim and Schleser, Markus and Triebs, Johannes and Berg, Alexander-Karl and Hansen, Jan Ole and Fiedler, Falko}, title = {Bauteilintegrierte Vorrichtungsfunktionen im Karosseriebau : Aktuelle Ergebnisse im Forschungsprojekt ProeK}, series = {ZWF Zeitschrift f{\"u}r wirtschaftlichen Fabrikbetrieb}, volume = {113}, journal = {ZWF Zeitschrift f{\"u}r wirtschaftlichen Fabrikbetrieb}, number = {11}, publisher = {De Gruyter}, address = {Berlin}, issn = {0947-0085}, doi = {10.3139/104.112012}, pages = {767 -- 770}, year = {2018}, abstract = {Das Forschungsprojekt Produktionseffizienz in der Kleinserie (ProeK) erarbeitet kosteng{\"u}nstige und effiziente L{\"o}sungsans{\"a}tze f{\"u}r Prozessketten im Zukunftsfeld der Elektromobilit{\"a}t. Das Teilprojekt Karosserie setzt diese Zielsetzung durch innovative und praxisorientierte Produkt- und Prozesskonzepte mit neuartigen bauteilintegrierten Vorrichtungsfunktionen (BiV) um. Im Teilprojekt Außenhaut sollen Toleranzen adaptiv durch Anpassungen der Prozessparameter sowie Bauteilmanipulation kompensiert werden.}, language = {de} } @incollection{EngemannDuKallweitetal.2020, author = {Engemann, Heiko and Du, Shengzhi and Kallweit, Stephan and Ning, Chuanfang and Anwar, Saqib}, title = {AutoSynPose: Automatic Generation of Synthetic Datasets for 6D Object Pose Estimation}, series = {Machine Learning and Artificial Intelligence. Proceedings of MLIS 2020}, booktitle = {Machine Learning and Artificial Intelligence. Proceedings of MLIS 2020}, publisher = {IOS Press}, address = {Amsterdam}, isbn = {978-1-64368-137-5}, doi = {10.3233/FAIA200770}, pages = {89 -- 97}, year = {2020}, abstract = {We present an automated pipeline for the generation of synthetic datasets for six-dimension (6D) object pose estimation. Therefore, a completely automated generation process based on predefined settings is developed, which enables the user to create large datasets with a minimum of interaction and which is feasible for applications with a high object variance. The pipeline is based on the Unreal 4 (UE4) game engine and provides a high variation for domain randomization, such as object appearance, ambient lighting, camera-object transformation and distractor density. In addition to the object pose and bounding box, the metadata includes all randomization parameters, which enables further studies on randomization parameter tuning. The developed workflow is adaptable to other 3D objects and UE4 environments. An exemplary dataset is provided including five objects of the Yale-CMU-Berkeley (YCB) object set. The datasets consist of 6 million subsegments using 97 rendering locations in 12 different UE4 environments. Each dataset subsegment includes one RGB image, one depth image and one class segmentation image at pixel-level.}, language = {en} } @article{EngemannDuKallweitetal.2020, author = {Engemann, Heiko and Du, Shengzhi and Kallweit, Stephan and C{\"o}nen, Patrick and Dawar, Harshal}, title = {OMNIVIL - an autonomous mobile manipulator for flexible production}, series = {Sensors}, volume = {20}, journal = {Sensors}, number = {24, art. no. 7249}, publisher = {MDPI}, address = {Basel}, isbn = {1424-8220}, doi = {10.3390/s20247249}, pages = {1 -- 30}, year = {2020}, language = {en} } @inproceedings{DannenSchindelePruemmeretal.2022, author = {Dannen, Tammo and Schindele, Benedikt and Pr{\"u}mmer, Marcel and Arntz, Kristian and Bergs, Thomas}, title = {Methodology for the self-optimizing determination of additive manufacturing process eligibility and optimization potentials in toolmaking}, series = {Procedia CIRP Leading manufacturing systems transformation - Proceedings of the 55th CIRP Conference on Manufacturing Systems 2022}, volume = {107}, booktitle = {Procedia CIRP Leading manufacturing systems transformation - Proceedings of the 55th CIRP Conference on Manufacturing Systems 2022}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {10.1016/j.procir.2022.05.188}, pages = {1539 -- 1544}, year = {2022}, abstract = {Additive Manufacturing (AM) of metallic workpieces faces a continuously rising technological relevance and market size. Producing complex or highly strained unique workpieces is a significant field of application, making AM highly relevant for tool components. Its successful economic application requires systematic workpiece based decisions and optimizations. Considering geometric and technological requirements as well as the necessary post-processing makes deciding effortful and requires in-depth knowledge. As design is usually adjusted to established manufacturing, associated technological and strategic potentials are often neglected. To embed AM in a future proof industrial environment, software-based self-learning tools are necessary. Integrated into production planning, they enable companies to unlock the potentials of AM efficiently. This paper presents an appropriate methodology for the analysis of process-specific AM-eligibility and optimization potential, added up by concrete optimization proposals. For an integrated workpiece characterization, proven methods are enlarged by tooling-specific figures. The first stage of the approach specifies the model's initialization. A learning set of tooling components is described using the developed key figure system. Based on this, a set of applicable rules for workpiece-specific result determination is generated through clustering and expert evaluation. Within the following application stage, strategic orientation is quantified and workpieces of interest are described using the developed key figures. Subsequently, the retrieved information is used for automatically generating specific recommendations relying on the generated ruleset of stage one. Finally, actual experiences regarding the recommendations are gathered within stage three. Statistic learning transfers those to the generated ruleset leading to a continuously deepening knowledge base. This process enables a steady improvement in output quality.}, language = {en} } @incollection{Dreschers2023, author = {Dreschers, Martin}, title = {\S25 Arbeitsrechtliche Probleme im Rahmen der Betriebsfortf{\"u}hrung}, series = {Betriebsfortf{\"u}hrung in Restrukturierung und Insolvenz}, booktitle = {Betriebsfortf{\"u}hrung in Restrukturierung und Insolvenz}, editor = {M{\"o}nning, Rolf-Dieter}, publisher = {RWS Verlag}, address = {K{\"o}ln}, isbn = {978-3-8145-2012-4 (print)}, doi = {https://doi.org/10.15375/9783814558882-028}, pages = {947 -- 988}, year = {2023}, language = {de} } @incollection{Dreschers2023, author = {Dreschers, Martin}, title = {\S18 Grenz{\"u}berschreitende Eigenverwaltung}, series = {HRI II - Handbuch Restrukturierung in der Insolvenz}, booktitle = {HRI II - Handbuch Restrukturierung in der Insolvenz}, editor = {K{\"u}bler, Bruno M. and Bork, Reinhard and Pr{\"u}tting, Hanns}, publisher = {RWS Verlag}, address = {K{\"o}ln}, isbn = {978-3-8145-2010-0 (print)}, doi = {10.15375/9783814558714-028}, pages = {524 -- 556}, year = {2023}, language = {de} } @inproceedings{KoenigWolf2016, author = {K{\"o}nig, Johannes Alexander and Wolf, Martin R.}, title = {A new definition of competence developing games - and a framework to assess them}, series = {ACHI 2016 : The Ninth International Conference on Advances in Computer-Human Interactions}, booktitle = {ACHI 2016 : The Ninth International Conference on Advances in Computer-Human Interactions}, isbn = {978-1-61208-468-8}, pages = {95 -- 97}, year = {2016}, abstract = {There are different types of games that try to make use of the motivation of a gaming situation in learning contexts. This paper introduces the new terminology 'Competence Developing Game' (CDG) as an umbrella term for all games with this intention. Based on this new terminology, an assessment framework has been developed and validated in scope of an empirical study. Now, all different types of CDGs can be evaluated according to a defined and uniform set of assessment criteria and, thus, are comparable according to their characteristics and effectiveness.}, language = {en} } @article{EngelnMuellges1982, author = {Engeln-M{\"u}llges, Gisela}, title = {Entartungsbedingungen f{\"u}r Gleitfl{\"a}chennomogramme und Nomographierbarkeitsbedingungen f{\"u}r Fluchtebenennomogramme}, series = {ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik}, volume = {62}, journal = {ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift f{\"u}r Angewandte Mathematik und Mechanik}, number = {2}, issn = {1521-4001}, doi = {10.1002/zamm.19820620203}, pages = {77 -- 93}, year = {1982}, language = {de} }