@inproceedings{WollertPlessmann1993, author = {Wollert, J{\"o}rg and Plessmann, K. W.}, title = {Controlling processes by operating-point based hybride observers}, series = {EUFIT '93 : September 7 - 10, 1993, Eurogress Aachen, Germany, proceedings / First European Congress on Fuzzy and Intelligent Technologies}, booktitle = {EUFIT '93 : September 7 - 10, 1993, Eurogress Aachen, Germany, proceedings / First European Congress on Fuzzy and Intelligent Technologies}, publisher = {Verl. d. Augustinus Buchh.}, address = {Aachen}, organization = {EUFIT <1, 1993, Aachen>}, isbn = {3-86073-176-9}, pages = {1151 -- 1155}, year = {1993}, language = {en} } @inproceedings{Wollert2012, author = {Wollert, J{\"o}rg}, title = {The performance of UWB-communication in an industrial environment}, series = {IEEE 1st International Symposium on Wireless Systems : (IDAACS-SWS) : Offenburg, 20-21 Sept. 2012}, booktitle = {IEEE 1st International Symposium on Wireless Systems : (IDAACS-SWS) : Offenburg, 20-21 Sept. 2012}, publisher = {IEEE}, address = {Piscataway, NJ}, organization = {International Symposium on Wireless Systems <1, 2012, Offenburg>}, isbn = {978-1-4673-4678-8}, doi = {10.1109/IDAACS-SWS.2012.6377639}, pages = {85 -- 90}, year = {2012}, language = {en} } @inproceedings{Wollert2015, author = {Wollert, J{\"o}rg}, title = {Wireless systems for machinery safety : Requirements and solutions for wireless real time systems}, series = {16th International Conference on Research and Education in Mechatronics (REM), 2015}, booktitle = {16th International Conference on Research and Education in Mechatronics (REM), 2015}, isbn = {978-3-945728-01-7}, doi = {10.1109/REM.2015.7380377}, pages = {88 -- 91}, year = {2015}, 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} } @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} } @inproceedings{WeissHeslenfeldSaeweetal.2022, author = {Weiss, Christian and Heslenfeld, Jonas and Saewe, Jasmin Kathrin and Bremen, Sebastian and H{\"a}fner, Constantin Leon}, title = {Investigation on the influence of powder humidity in Laser Powder Bed Fusion (LPBF)}, series = {Procedia CIRP}, volume = {111}, booktitle = {Procedia CIRP}, publisher = {Elsevier}, address = {Amsterdam}, issn = {2212-8271}, doi = {10.1016/j.procir.2022.08.102}, pages = {115 -- 120}, year = {2022}, abstract = {In the Laser Powder Bed Fusion (LPBF) process, parts are built out of metal powder material by exposure of a laser beam. During handling operations of the powder material, several influencing factors can affect the properties of the powder material and therefore directly influence the processability during manufacturing. Contamination by moisture due to handling operations is one of the most critical aspects of powder quality. In order to investigate the influences of powder humidity on LPBF processing, four materials (AlSi10Mg, Ti6Al4V, 316L and IN718) are chosen for this study. The powder material is artificially humidified, subsequently characterized, manufactured into cubic samples in a miniaturized process chamber and analyzed for their relative density. The results indicate that the processability and reproducibility of parts made of AlSi10Mg and Ti6Al4V are susceptible to humidity, while IN718 and 316L are barely influenced.}, language = {en} } @article{WangAnikFrohberg1988, author = {Wang, Mao and Anik, Sabri and Frohberg, Martin G.}, title = {Experiments on the electrochemical determination of the sulphur activities in the system copper-silver at 1200°C}, series = {Zeitschrift f{\"u}r Metallkunde}, volume = {79}, journal = {Zeitschrift f{\"u}r Metallkunde}, number = {5}, issn = {0044-3093}, pages = {336 -- 339}, year = {1988}, language = {en} } @article{WangAnikFrohberg1987, author = {Wang, Mao and Anik, Sabri and Frohberg, Martin G.}, title = {Thermodynamics of oxygen in the lead-antimony system at 1173 K}, series = {Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik}, volume = {40}, journal = {Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik}, number = {6}, issn = {0044-2658}, pages = {316 -- 319}, year = {1987}, language = {en} } @inproceedings{WalkLaufferRaupachDilgeretal.2004, author = {Walk-Lauffer, Bernd and Raupach, Michael and Dilger, Klaus and B{\"o}hm, Stefan and Mundt, F. and Dilthey, Ulrich and Schleser, Markus}, title = {The interconnection between inner filaments of textile reinforcement by means of polymer modified concrete}, series = {Proceedings of the First International Conference on Innovative Materials and Technologies for Construction and Restoration : : Lecce, June 6 - 9, 2004 / Universit{\`a} degli Studi di Lecce / ed. Antonio La Tegola. Vol. 1: Key-notes, materials, construction}, booktitle = {Proceedings of the First International Conference on Innovative Materials and Technologies for Construction and Restoration : : Lecce, June 6 - 9, 2004 / Universit{\`a} degli Studi di Lecce / ed. Antonio La Tegola. Vol. 1: Key-notes, materials, construction}, publisher = {Liguori}, address = {Napoli}, pages = {150 -- 159}, year = {2004}, language = {en} } @inproceedings{VedralWollertBudaetal.2006, author = {Vedral, Andreas and Wollert, J{\"o}rg and Buda, A. and Altrock, R.}, title = {The capability of bluetooth for real-time transmission in automation}, series = {Proceedings of the IASTED International Conference on Networks and Communication Systems 2006 : March 29 - 31, 2006, Chiang Mai, Thailand}, booktitle = {Proceedings of the IASTED International Conference on Networks and Communication Systems 2006 : March 29 - 31, 2006, Chiang Mai, Thailand}, publisher = {Acta Pr.}, address = {Anaheim, Calif.}, organization = {International Association of Science and Technology for Development}, pages = {168 -- 175}, year = {2006}, language = {en} }