TY  - CHAP
A1  - Wollert, Jörg
A1  - Plessmann, K. W.
T1  - Controlling processes by operating-point based hybride observers
T2  - EUFIT '93 : September 7 - 10, 1993, Eurogress Aachen, Germany, proceedings / First European Congress on Fuzzy and Intelligent Technologies
Y1  - 1993
SN  - 3-86073-176-9
SP  - 1151
EP  - 1155
PB  - Verl. d. Augustinus Buchh.
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Wollert, Jörg
T1  - The performance of UWB-communication in an industrial environment
T2  - IEEE 1st International Symposium on Wireless Systems : (IDAACS-SWS) : Offenburg, 20-21 Sept. 2012
Y1  - 2012
SN  - 978-1-4673-4678-8
U6  - http://dx.doi.org/10.1109/IDAACS-SWS.2012.6377639
SP  - 85
EP  - 90
PB  - IEEE
CY  - Piscataway, NJ
ER  - 
TY  - CHAP
A1  - Wollert, Jörg
T1  - Wireless systems for machinery safety : Requirements and solutions for wireless real time systems
T2  - 16th International Conference on Research and Education in Mechatronics (REM), 2015
Y1  - 2015
SN  - 978-3-945728-01-7
U6  - http://dx.doi.org/10.1109/REM.2015.7380377
SP  - 88
EP  - 91
ER  - 
TY  - JOUR
A1  - Wollbrink, Moritz
A1  - Maslo, Semir
A1  - Zimmer, Daniel
A1  - Abbas, Karim
A1  - Arntz, Kristian
A1  - Bergs, Thomas
T1  - Clamping and substrate plate system for continuous additive build-up and post-processing of metal parts
JF  - Procedia CIRP
N2  - 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.
Y1  - 2020
U6  - http://dx.doi.org/10.1016/j.procir.2020.04.015
SN  - 2212-8271
VL  - 93
SP  - 108
EP  - 113
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Wiesen, Patrick
A1  - Engemann, Heiko
A1  - Limpert, Nicolas
A1  - Kallweit, Stephan
T1  - Learning by Doing - Mobile Robotics in the FH Aachen ROS Summer School
T2  - European Robotics Forum 2018, TRROS18 Workshop
Y1  - 2018
SP  - 47
EP  - 58
ER  - 
TY  - CHAP
A1  - Weiss, Christian
A1  - Heslenfeld, Jonas
A1  - Saewe, Jasmin Kathrin
A1  - Bremen, Sebastian
A1  - Häfner, Constantin Leon
T1  - Investigation on the influence of powder humidity in Laser Powder Bed Fusion (LPBF)
T2  - Procedia CIRP
N2  - 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.
KW  - LPBF
KW  - Additive Manufacturing
KW  - Powder Material
KW  - Humidity
Y1  - 2022
U6  - http://dx.doi.org/10.1016/j.procir.2022.08.102
SN  - 2212-8271
N1  - Teil der Sonderausgabe: 12th CIRP Conference on Photonic Technologies [LANE 2022]
VL  - 111
SP  - 115
EP  - 120
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Wang, Mao
A1  - Anik, Sabri
A1  - Frohberg, Martin G.
T1  - Experiments on the electrochemical determination of the sulphur activities in the system copper-silver at 1200°C
JF  - Zeitschrift für Metallkunde
Y1  - 1988
SN  - 0044-3093
VL  - 79
IS  - 5
SP  - 336
EP  - 339
ER  - 
TY  - JOUR
A1  - Wang, Mao
A1  - Anik, Sabri
A1  - Frohberg, Martin G.
T1  - Thermodynamics of oxygen in the lead-antimony system at 1173 K
JF  - Erzmetall : Rohstoffgewinnung, Verarbeitung, Recycling, Umwelttechnik
Y1  - 1987
SN  - 0044-2658
VL  - 40
IS  - 6
SP  - 316
EP  - 319
ER  - 
TY  - CHAP
A1  - Walk-Lauffer, Bernd
A1  - Raupach, Michael
A1  - Dilger, Klaus
A1  - Böhm, Stefan
A1  - Mundt, F.
A1  - Dilthey, Ulrich
A1  - Schleser, Markus
T1  - The interconnection between inner filaments of textile reinforcement by means of polymer modified concrete
T2  - Proceedings of the First International Conference on Innovative Materials and Technologies for Construction and Restoration : : Lecce, June 6 - 9, 2004 / Università degli Studi di Lecce / ed. Antonio La Tegola. Vol. 1: Key-notes, materials, construction
Y1  - 2004
SP  - 150
EP  - 159
PB  - Liguori
CY  - Napoli
ER  - 
TY  - CHAP
A1  - Vedral, Andreas
A1  - Wollert, Jörg
A1  - Buda, A.
A1  - Altrock, R.
T1  - The capability of bluetooth for real-time transmission in automation
T2  - Proceedings of the IASTED International Conference on Networks and Communication Systems 2006 : March 29 - 31, 2006, Chiang Mai, Thailand
Y1  - 2006
SP  - 168
EP  - 175
PB  - Acta Pr.
CY  - Anaheim, Calif.
ER  -