Dokument-ID Dokumenttyp Verfasser/Autoren Herausgeber Haupttitel Abstract Auflage Verlagsort Verlag Erscheinungsjahr Seitenzahl Schriftenreihe Titel Schriftenreihe Bandzahl ISBN Quelle der Hochschulschrift Konferenzname Bemerkung Quelle:Titel Quelle:Jahrgang Quelle:Heftnummer Quelle:Erste Seite Quelle:Letzte Seite URN DOI Zugriffsart Link Abteilungen OPUS4-9343 Konferenzveröffentlichung Braun, Sebastian, sebastian.braun@fh-aachen.de; Cheng, Chi-Tsun, ; Dowey, Steve, ; Wollert, Jörg, wollert@fh-aachen.de Survey on Security Concepts to Adapt Flexible Manufacturing and Operations Management based upon Multi-Agent Systems 2020 2020 IEEE 29th International Symposium on Industrial Electronics (ISIE) 10.1109/ISIE45063.2020.9152210 campus https://doi.org/10.1109/ISIE45063.2020.9152210 Fachbereich Maschinenbau und Mechatronik OPUS4-9616 Konferenzveröffentlichung Kasch, Susanne, ; Schmidt, Thomas, ; Eichler, Fabian, eichler@fh-aachen.de; Thurn, Laura, thurn@fh-aachen.de; Jahn, Simon, ; Bremen, Sebastian, bremen@fh-aachen.de Solution approaches and process concepts for powder bed-based melting of glass In the study, the process chain of additive manufacturing by means of powder bed fusion will be presented based on the material glass. In order to reliably process components additively, new concepts with different solutions were developed and investigated. Compared to established metallic materials, the properties of glass materials differ significantly. Therefore, the process control was adapted to the material glass in the investigations. With extensive parameter studies based on various glass powders such as borosilicate glass and quartz glass, scientifically proven results on powder bed fusion of glass are presented. Based on the determination of the particle properties with different methods, extensive investigations are made regarding the melting behavior of glass by means of laser beams. Furthermore, the experimental setup was steadily expanded. In addition to the integration of coaxial temperature measurement and regulation, preheating of the building platform is of major importance. This offers the possibility to perform 3D printing at the transformation temperatures of the glass materials. To improve the component's properties, the influence of a subsequent heat treatment was also investigated. The experience gained was incorporated into a new experimental system, which allows a much better exploration of the 3D printing of glass. Currently, studies are being conducted to improve surface texture, building accuracy, and geometrical capabilities using three-dimensional specimen. The contribution shows the development of research in the field of 3D printing of glass, gives an insight into the machine and process engineering as well as an outlook on the possibilities and applications. Cham Springer 2020 13 Industrializing Additive Manufacturing. Proceedings of AMPA2020 978-3-030-54333-4 (Print) International Conference on Additive Manufacturing in Products and Applications. 01.-03. September 2020. Zurich, Switzerland 82 95 10.1007/978-3-030-54334-1_7 weltweit https://doi.org/10.1007/978-3-030-54334-1_7 Fachbereich Maschinenbau und Mechatronik OPUS4-9562 Konferenzveröffentlichung Ulmer, Jessica, ulmer@fh-aachen.de; Braun, Sebastian, sebastian.braun@fh-aachen.de; Cheng, Chi-Tsun, ; Dowey, Steve, ; Wollert, Jörg, wollert@fh-aachen.de Simulation und Verifikation komplexer Handarbeitsprozesse durch die Kombination von Virtual Reality und Augmented Reality im Single-Piece-Workflow 2020 3 AALE 2020, 17. Fachkonferenz Angewandte Automatisierungstechnik in Lehre und Entwicklung, Automatisierung und Mensch-Technik-Interaktion, Leipzig, DE, 4.-6.3.2020 978-3-8007-5180-8 1 4 Fachbereich Maschinenbau und Mechatronik OPUS4-9350 Wissenschaftlicher Artikel Raffeis, Iris, ; Adjei-Kyeremeh, Frank, ; Vroomen, Uwe, ; Westhoff, Elmar, ; Bremen, Sebastian, bremen@fh-aachen.de; Hohoi, Alexandru, ; Bührig-Polaczek, Andreas, Qualification of a Ni-Cu alloy for the laser powder bed fusion process (LPBF): Its microstructure and mechanical properties As researchers continue to seek the expansion of the material base for additive manufacturing, there is a need to focus attention on the Ni-Cu group of alloys which conventionally has wide industrial applications. In this work, the G-NiCu30Nb casting alloy, a variant of the Monel family of alloys with Nb and high Si content is, for the first time, processed via the laser powder bed fusion process (LPBF). Being novel to the LPBF processes, optimum LPBF parameters were determined, and hardness and tensile tests were performed in as-built conditions and after heat treatment at 1000 °C. Microstructures of the as-cast and the as-built condition were compared. Highly dense samples (99.8% density) were achieved after varying hatch distance (80 µm and 140 µm) with scanning speed (550 mm/s-1500 mm/s). There was no significant difference in microhardness between varied hatch distance print sets. Microhardness of the as-built condition (247 HV0.2) exceeded the as-cast microhardness (179 HV0.2.). Tensile specimens built in vertical (V) and horizontal (H) orientations revealed degrees of anisotropy and were superior to conventionally reported figures. Post heat treatment increased ductility from 20% to 31% (V), as well as from 16% to 25% (H), while ultimate tensile strength (UTS) and yield strength (YS) were considerably reduced. Basel MDPI 2020 14 Applied Sciences 10 Special Issue Materials Development by Additive Manufacturing Techniques Art. 3401 1 15 10.3390/app10103401 weltweit https://doi.org/10.3390/app10103401 Fachbereich Maschinenbau und Mechatronik OPUS4-9513 Wissenschaftlicher Artikel Engemann, Heiko, engemann@fh-aachen.de; Du, Shengzhi, ; Kallweit, Stephan, kallweit@fh-aachen.de; Cönen, Patrick, coenen@fh-aachen.de; Dawar, Harshal, OMNIVIL - an autonomous mobile manipulator for flexible production Basel MDPI 2020 29 Sensors 20 1424-8220 Special issue: Sensor Networks Applications in Robotics and Mobile Systems 24, art. no. 7249 1 30 10.3390/s20247249 weltweit https://doi.org/10.3390/s20247249 Fachbereich Maschinenbau und Mechatronik OPUS4-9234 Wissenschaftlicher Artikel Wilbring, Daniela, wilbring@fh-aachen.de; Enning, Manfred, enning@fh-aachen.de; Pfaff, Raphael, pfaff@fh-aachen.de; Schmidt, Bernd, b.schmidt@fh-aachen.de Neue Perspektiven für die Bahn in der Produktions- und Distributionslogistik durch Prozessautomation 2020 4 ETR - Eisenbahntechnische Rundschau 69 3 15 19 campus https://dokumente.bibliothek.fh-aachen.de/campus/ETR/2020/ETR_003_20.pdf Fachbereich Maschinenbau und Mechatronik OPUS4-9431 Teil eines Buches Fateri, Miranda, ; Gebhardt, Andreas, gebhardt@fh-aachen.de Introduction to Additive Manufacturing 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. Cham Springer 2020 21 3D Printing of Optical Components 978-3-030-58960-8 Springer Series in Optical Sciences, vol 233 1 22 10.1007/978-3-030-58960-8_1 campus https://doi.org/10.1007/978-3-030-58960-8_1 Fachbereich Maschinenbau und Mechatronik OPUS4-9206 Wissenschaftlicher Artikel Cosma, Cosmin, ; Kessler, Julia, ; Gebhardt, Andreas, gebhardt@fh-aachen.de; Campbell, Ian, ; Balc, Nicolae, Improving the Mechanical Strength of Dental Applications and Lattice Structures SLM Processed 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. Basel MDPI 2020 17 Materials 13 4 1 18 10.3390/ma13040905 weltweit https://doi.org/10.3390/ma13040905 Fachbereich Maschinenbau und Mechatronik OPUS4-9376 Wissenschaftlicher Artikel Ulmer, Jessica, ulmer@fh-aachen.de; Braun, Sebastian, sebastian.braun@fh-aachen.de; Cheng, Chi-Tsun, ; Dowey, Steve, ; Wollert, Jörg, wollert@fh-aachen.de Human-Centered Gamification Framework for Manufacturing Systems While bringing new opportunities, the Industry 4.0 movement also imposes new challenges to the manufacturing industry and all its stakeholders. In this competitive environment, a skilled and engaged workforce is a key to success. Gamification can generate valuable feedbacks for improving employees' engagement and performance. Currently, Gamification in workspaces focuses on computer-based assignments and training, while tasks that require manual labor are rarely considered. This research provides an overview of Enterprise Gamification approaches and evaluates the challenges. Based on that, a skill-based Gamification framework for manual tasks is proposed, and a case study in the Industry 4.0 model factory is shown. Amsterdam Elsevier 2020 5 Procedia CIRP 93 670 675 10.1016/j.procir.2020.04.076 weltweit https://doi.org/10.1016/j.procir.2020.04.076 Fachbereich Maschinenbau und Mechatronik OPUS4-9486 Konferenzveröffentlichung Ulmer, Jessica, ulmer@fh-aachen.de; Braun, Sebastian, sebastian.braun@fh-aachen.de; Cheng, Chi-Tsun, ; Dowey, Steve, ; Wollert, Jörg, wollert@fh-aachen.de Gamified Virtual Reality Training Environment for the Manufacturing Industry 2020 5 1 6 10.1109/ME49197.2020.9286661 campus https://doi.org/10.1109/ME49197.2020.9286661 Fachbereich Maschinenbau und Mechatronik OPUS4-9331 Konferenzveröffentlichung Ulmer, Jessica, ulmer@fh-aachen.de; Wollert, Jörg, wollert@fh-aachen.de; Cheng, C., ; Dowey, S., Enterprise Gamification für produzierende mittelständische Unternehmen Düsseldorf VDI-Verlag 2020 8 Shaping automation for our future: 21. Leitkongress Mess- u. Automatisierungstechnik : Automation 2020 : 30. Juni u. 01. Juli 2020 978-3-18-092375-8 VDI-Berichte ; 2375 157 165 Fachbereich Maschinenbau und Mechatronik OPUS4-9302 Wissenschaftlicher Artikel Franko, Josef, ; Du, Shengzhi, ; Kallweit, Stephan, kallweit@fh-aachen.de; Duelberg, Enno Sebastian, ; Engemann, Heiko, engemann@fh-aachen.de Design of a Multi-Robot System for Wind Turbine Maintenance 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. Basel MDPI 2020 Energies 13 10 Article 2552 10.3390/en13102552 weltweit https://doi.org/10.3390/en13102552 Fachbereich Maschinenbau und Mechatronik OPUS4-9377 Wissenschaftlicher Artikel Wollbrink, Moritz, ; Maslo, Semir, ; Zimmer, Daniel, ; Abbas, Karim, abbas@fh-aachen.de; Arntz, Kristian, ; Bergs, Thomas, Clamping and substrate plate system for continuous additive build-up and post-processing of metal parts 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. Amsterdam Elsevier 2020 5 Procedia CIRP 93 108 113 10.1016/j.procir.2020.04.015 weltweit https://doi.org/10.1016/j.procir.2020.04.015 Fachbereich Maschinenbau und Mechatronik OPUS4-9300 Wissenschaftlicher Artikel Pfaff, Raphael, pfaff@fh-aachen.de; Gidaszewski, Lars, ; Schmidt, Bernd, b.schmidt@fh-aachen.de Berücksichtigung von No Fault Found im Diagnose- und Instandhaltungssystem von Schienenfahrzeugen Intermittierende und nicht reproduzierbare Fehler, auch als No Fault Found bezeichnet, treten in praktisch allen Bereichen auf und sorgen für hohe Kosten. Diese sind häufig auf unpräzise Fehlerbeschreibungen zurückzuführen. Im vorliegenden Beitrag werden Anpassungen der Vorgehensweise bei der Entwicklung und Anpassungen des Diagnosesystems vorgeschlagen. Hamburg DVV Media Group 2020 3 ETR - Eisenbahntechnische Rundschau 5 56 59 campus Fachbereich Maschinenbau und Mechatronik OPUS4-9508 Teil eines Buches Engemann, Heiko, engemann@fh-aachen.de; Du, Shengzhi, ; Kallweit, Stephan, kallweit@fh-aachen.de; Ning, Chuanfang, ; Anwar, Saqib, AutoSynPose: Automatic Generation of Synthetic Datasets for 6D Object Pose Estimation 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. Amsterdam IOS Press 2020 8 Machine Learning and Artificial Intelligence. Proceedings of MLIS 2020 978-1-64368-137-5 Frontiers in Artificial Intelligence and Applications. Vol 332 89 97 10.3233/FAIA200770 weltweit https://doi.org/10.3233/FAIA200770 Fachbereich Maschinenbau und Mechatronik OPUS4-9421 Konferenzveröffentlichung Chavez Bermudez, Victor Francisco, chavez-bermudez@fh-aachen.de; Wollert, Jörg, wollert@fh-aachen.de Arduino based Framework for Rapid Application Development of a Generic IO-Link interface The implementation of IO-Link in the automation industry has increased over the years. Its main advantage is it offers a digital point-to-point plugand-play interface for any type of device or application. This simplifies the communication between devices and increases productivity with its different features like self-parametrization and maintenance. However, its complete potential is not always used. The aim of this paper is to create an Arduino based framework for the development of generic IO-Link devices and increase its implementation for rapid prototyping. By generating the IO device description file (IODD) from a graphical user interface, and further customizable options for the device application, the end-user can intuitively develop generic IO-Link devices. The peculiarity of this framework relies on its simplicity and abstraction which allows to implement any sensor functionality and virtually connect any type of device to an IO-Link master. This work consists of the general overview of the framework, the technical background of its development and a proof of concept which demonstrates the workflow for its implementation. Berlin Springer Vieweg 2020 12 Kommunikation und Bildverarbeitung in der Automation 978-3-662-59895-5 Teil der Buchserie "Technologien für die intelligente Automation" (TIA,volume 12) 21 33 10.1007/978-3-662-59895-5_2 weltweit https://doi.org/10.1007/978-3-662-59895-5_2 Fachbereich Maschinenbau und Mechatronik OPUS4-9407 Wissenschaftlicher Artikel Ulmer, Jessica, ulmer@fh-aachen.de; Gröninger, Marc, ; Braun, Sebastian, ; Wollert, Jörg, wollert@fh-aachen.de AR Arbeitsplätze: Für hochflexible und skalierbare Produktionsumgebungen Trotz fortschreitender Automatisierung bleiben manuelle Tätigkeiten ein wichtiger Baustein der Fertigung kundenindividueller Produkte. Um die Mitarbeiter(innen) zu unterstützen und um eine effiziente Arbeit zu ermöglichen, werden zunehmend auf Augmented Reality (AR) basierende Systeme eingesetzt. Die vorgestellte Arbeit konzentriert sich auf die Entwicklung ganzheitlicher AR-Arbeitsplätze für den Einsatz in kleinen und mittleren Unternehmen (KMU). Das entwickelte AR- Handarbeitskonzept beinhaltet eine Just-in-time-Darstellung der Arbeitsaufgaben auf Werkstücken mit automatisierter Fertigungskontrolle. Als Reaktion auf kurze Produktlebenszyklen und hohe Produktvielfalten sind alle Komponenten auf maximale Flexibilität ausgelegt. Ein Umrüsten auf neue Produkte kann innerhalb von Minuten erfolgen. Essen Vulkan-Verlag 2020 atp Magazin 62 10 10.17560/atp.v62i10.2495 bezahl https://doi.org/10.17560/atp.v62i10.2495 Fachbereich Maschinenbau und Mechatronik