TY - JOUR A1 - Fateri, Miranda A1 - Gebhardt, Andreas T1 - Process Parameters Development of Selective Laser Melting of Lunar Regolith for On-Site Manufacturing Applications JF - International Journal of Applied Ceramic Technology Y1 - 2015 SN - 1744-7402 U6 - http://dx.doi.org/10.1111/ijac.12326 VL - 12 IS - 1 SP - 46 EP - 52 PB - Wiley-Blackwell CY - Oxford ER - TY - JOUR A1 - Gebhardt, Andreas A1 - Schmidt, Frank-Michael T1 - Practical experiences with making and finishing of coloured models using 3D printing Y1 - 2002 N1 - International Conference on Rapid Prototyping and Manufacturing <2, 2002, Beijing> ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Potenziale und Grenzen virtueller Prototypen Y1 - 2002 N1 - Euroforum Fachtagung Automobil-Zulieferer-Forum Österreich <2002, Wien> ER - TY - JOUR A1 - Schwarz, Alexander A1 - Gebhardt, Andreas A1 - Schleser, Markus A1 - Popoola, Patricia T1 - New Welding Joint Geometries Manufactured by Powder Bed Fusion from 316L JF - Materials Performance and Characterization 8 Y1 - 2019 U6 - http://dx.doi.org/10.1520/MPC20180096 SN - 2379-1365 IS - in press ER - TY - JOUR A1 - Gebhardt, Andreas A1 - Guntermann, P. A1 - Saur, G. A1 - Gartzen, Johannes T1 - Neue Impulse für den Leichtbau. Ein Konstruktionsprinzip für Verbauplatten mit Laserschweißen am verdeckten Stoß. JF - Laser-Praxis (1996) Y1 - 1996 SN - 0937-7069 SP - 21 EP - 24 ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Materialfrage führt häufig zu Trugschlüssen. Wunsch und Wirklichkeit im Rapid Prototyping - Teil 2 JF - Industrieanzeiger. 122 (2000), H. 4 Y1 - 2000 SN - 0019-9036 N1 - Zeitschriftenkurzaufsatz SP - 41 EP - 41 ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Marktentwicklung im Rapid Prototyping JF - Kunststoffe, München. 89 (1999), H. 11 Y1 - 1999 SN - 0023-5563 SP - 50 EP - 55 ER - TY - JOUR A1 - Ziebura, Dawid A1 - Bremen, Sebastian A1 - Schleifenbaum, Johannes Henrich A1 - Gebhardt, Andreas T1 - Machbarkeitsstudie zur Verarbeitung von nicht rostendem Stahl 1.4404 unter Verwendung einer Diodenlaser-basierten LPBF-Maschine mit kartesischem Achssystem JF - RTejournal - Forum für Rapid Technologie Y1 - 2018 SN - 1614-0923 VL - 15 ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Laserwelding with fillerwire JF - LIA handbook of laser material processing / Laser Institute of America Y1 - 2001 SN - 3-540-41770-2 N1 - Chapter 11.2.12 CY - Orlando, Florida ER - TY - JOUR A1 - Gartzen, Johannes A1 - Gebhardt, Andreas A1 - Anger, A. A1 - Petschke, U. A1 - Lingens, Hans T1 - Laserstrahlschweißen mit Schweißdraht von Wärmetauschern mit hohem Wirkungsgrad JF - Proceedings : Aachen, Germany, 31st October - 4th November, 1994 / 27th ISATA Y1 - 1994 SN - 0-947719-64-4 N1 - Konferenz-Einzelbericht: ISATA, 27. Internat. Symp. on Automotive Technology & Automation SP - 397 EP - 403 PB - Automotive Automation CY - Croydon ER - TY - JOUR A1 - Gartzen, Johannes A1 - Lingens, Hans A1 - Schönbohm, J. A1 - Baumjohann, F. A1 - Gebhardt, Andreas T1 - Laserhärten - im Verbund möglich. Forschungsverbund Lasertechnik NRW auf der Suche nach neuen Laseranwendungen JF - Technica, Rupperswil. 42 (1993), H. 24 Y1 - 1993 SN - 0040-866X SP - 14 EP - 18 ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Lasereinsatz in der Fertigung der Fahrzeugindustrie. Grundlagen der Anwendung von Lasern zur Materialbearbeitung Y1 - 1997 N1 - Konferenz-Einzelbericht : Laseranwendungen im Automobilbau, 1. Euroforum-Anwenderkonferenz zum Lasereinsatz, Nürtingen, DE, 23.-24. Okt, 1997 SP - 1 EP - 154 ER - TY - JOUR A1 - Gebhardt, Andreas A1 - Pflug, T-K. T1 - Innovationsschub mittels Rapid-Prototyping. Teil I JF - CAD-CAM Report. 14 (1995), H. 7 Y1 - 1995 SN - 0930-7117 SP - 56 EP - 65 ER - TY - JOUR A1 - Gebhardt, Andreas A1 - Plug, T-K. T1 - Innovationsschub mittels Rapid-Prototyping, Teil II JF - CAD-CAM Report. 14 (1995), H. 9 Y1 - 1995 SN - 0930-7117 SP - 78 EP - 85 ER - TY - JOUR A1 - Cosma, Cosmin A1 - Kessler, Julia A1 - Gebhardt, Andreas A1 - Campbell, Ian A1 - Balc, Nicolae T1 - Improving the Mechanical Strength of Dental Applications and Lattice Structures SLM Processed JF - Materials N2 - 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. Y1 - 2020 U6 - http://dx.doi.org/10.3390/ma13040905 SN - 1996-1944 VL - 13 IS - 4 SP - 1 EP - 18 PB - MDPI CY - Basel ER - TY - JOUR A1 - Gebhardt, Andreas A1 - Hötter, Jan-Steffen A1 - Ziebura, Dawid T1 - Impact of SLM build parameters on the surface quality JF - RTejournal - Forum für Rapid Technologien Y1 - 2014 SN - 1614-0923 VL - 11 (2014) IS - 1 SP - 1 EP - 14 ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Härten von Kurbelwellen Y1 - 1989 N1 - Konferenz-Einzelbericht : Lasertechnik in Nordrhein-Westfalen. Symposium 26.-27.10.1989, Düsseldorf, D SP - 1 EP - 14 ER - TY - JOUR A1 - Gebhardt, Andreas T1 - Hype um Generative Verfahren. Generative Verfahren zur Herstellung von Kleinserien durchlaufen die Phase eines Booms JF - Economic Engineering (2008) Y1 - 2008 SN - 1436-3348 SP - 76 EP - 79 ER - TY - JOUR A1 - Dues, M. A1 - Gebhardt, Andreas A1 - Kallweit, Stephan A1 - Scheffler, T. A1 - Siekmann, H. A1 - Uchiyama, T. T1 - Flow Visualization in a Cavitating Flow JF - Proceedings of the German-Japanese Symposium on Multi-Phase Flow : Karlsruhe, Germany, August 23 - 25, 1994 / comp. by U. Müller ... Y1 - 1994 N1 - German Japanese Symposium on Multi-Phase Flow <1994, Karlsruhe> ; Kernforschungszentrum Karlsruhe ; 5389 SP - 391 EP - 402 PB - Kernforschungszentrum Karlsruhe CY - Karlsruhe ER - TY - JOUR A1 - Fateri, Miranda A1 - Gebhardt, Andreas A1 - Thümmler, Stefan A1 - Thurn, Laura T1 - Experimental investigation on selective laser melting of glass JF - Physics procedia : 8th International Conference on Laser Assisted Net Shape Engineering LANE 2014 Y1 - 2014 U6 - http://dx.doi.org/10.1016/j.phpro.2014.08.118 SN - 1875-3892 (E-Journal); 1875-3884 (Print) VL - 56 (2014) SP - 357 EP - 364 PB - Elsevier CY - Amsterdam ER -