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Research Summary Report of A04
Integrated Additive Manufacturing Processes for Reinforced Shotcrete 3D Printing (SC3DP) Elements with Precise Surface Quality [30.08.2024] David, Martin; Doctoral Researcher, m.david@tu-braunschweig.de TU Braunschweig, Institute for Machine Tools and Production Technology (IWF) Main Goal Project A04 aims to investigate cooperative Additive Manufacturing (AM) processes based on Shotcrete 3D Printing (SC3DP) for the production of material-efficient, force-optimised, reinforced, load-bearing concrete components with precise surface quality and geometrical precision. The goal is to produce large-scale concrete elements using significantly less reinforcement and concrete compared to standard concrete construction principles. Hereby, different robot guided end effectors are subject to research in a flexible and automated process chain. Currently, the following key points are researched: Development of end effectors for the processing of free-from …
Research Associate (m/f/d) in the field of Digital and Additive Construction, in particular on Quality Control
TU Braunschweig: With more than 16,000 students and 3,800 employees, the Technische Universität Braunschweig is one of Germany´s leading institutes of technology. It stands for strategic and performance-oriented thinking and acting, relevant research, committed teaching, and the successful transfer of knowledge and technologies to the economy and society. We consistently advocate for family friendliness and equal opportunities. Our research focuses are mobility, engineering for health, metrology, and city of the future. Strong engineering and natural sciences are our core disciplines. These are closely interconnected with economics, social and educational sciences and humanities. Our campus is located in the midst of one of the most research-intensive regions in Europe. We work successfully together with over 20 research institutions in our neighborhood …
Research Summary Report of A07
Wire and Arc Additive Manufacturing (WAAM) of Complex Individualized Steel Components [23.08.2024] Müggenburg, Marc; Doctoral Researcher, marc.mueggenburg@tu-braunschweig.de Unglaub, Julian; Project Leader,j.unglaub@tu-braunschweig.de Institute of Steel Structures Technische Universität Braunschweig Main Goal A07 focuses on understanding the interaction between DED-Arc (alias WAAM) components and existing structures, developing load-specific strengthening solutions and designing welding strategies. The specific challenges of adaptive design and adaptive manufacturing of large-scale high-strength steel DED-Arc components will be addressed and a digital twin including data from the design and manufacturing process, surface geometry and component performance will be elaborated. Physical and virtual component tests will be carried out to gain a comprehensive knowledge on buckling behavior, the effect of imperfections, load-carrying capacity and ductility. Overall, the project …
AMC Youth Spotlight: Lia’s Internship Experience with Project Ö
At AMC, we are committed to nurturing the next generation of innovators and thought leaders. One of the shining examples of this commitment is Lia, a talented intern who recently completed her internship as part of our Project Ö initiative. During her time with us, Lia delved into the fascinating intersection of design, technology, and sustainability. Her primary focus was on the use of advanced digital tools to create 3D models, which were then realized through the innovative process of robotic clay printing. Utilizing iPads, Lia explored the potential of these cutting-edge techniques to shape a future where digital fabrication plays a key role in sustainable construction. Lia’s work was not merely about mastering the technical aspects of 3D printing; …
Research Summary Report of A03
Extrusion of Near-Nozzle Mixed Concrete – Individually Graded in Density and in Rate of 3D Fibre Reinforcement [03.07.2024] M.Sc. Dahlenburg, Maximilian; maximilian.dahleburg@tum.de Prof. Dr.-Ing. Fottner, Johannes; j.fottner@tum.de TUM, Chair of Materials Handling, Material Flow, Logistics Main Goal In the first funding period the feasibility of multiple Near-Nozzle-Mixing approaches (NNM) were studied by iteratively developing a working prototype: the Gradation-Ready-Extrusion-System (GRES). The latest process mixes paste and aggregates at the end-effector, eliminating the challenging long pumping distances of State-of-the-art Extrusion based 3D Concrete Printing systems (E3DCP). This solves the process- and material development conflict of having a highly workable material for pumping and the contrasting need for a highly buildable material after strand deposition. Furthermore, this process type enables …
Research Summary Report of C06
Integration of Additive Manufacturing in the Construction Process [13.06.2024] Mawas, Karam; Doctoral researcher, k.mawas@tu-braunschweig.de, TU Braunschweig, Institute of Geodesy and Photogrammetry (IGP) Gerke, Markus; Project leader, m.gerke@tu-braunschweig.de, TU Braunschweig, Institute of Geodesy and Photogrammetry (IGP) Maboudi, Mehdi; Associated scientist, m.maboudi@tu-braunschweig.de, TU Braunschweig, Institute of Geodesy and Photogrammetry (IGP) Quality control plays a pivotal role in enabling the seamless integration of components into objects. To ensure adherence to a resilient process and the faithful realization of the designed model in the printed object, it is essential to implement continuous and automated data capture and process inspection. Based on the outcomes of our quality control measures, we investigated how to integrate these practices into Construction Industry 4.0. We will continue …
Research Summary Report of A01
Particle-Bed 3D Printing by Selective Cement Activation (SCA) – Particle Surface Functionalisation, Particle-Bed Compaction and Reinforcement Implementation [14.06.2024] Meier, Niklas; Researcher, niklas.meier@tu-braunschweig.de Zetzener, Harald; Leading researcher, h.zetzener@tu-braunschweig.de Kwade, Arno; Project Leader, a.kwade@tu-braunschweig.de all: TU Braunschweig, Institute for particle technology The fundamental goal of project A01 is to understand material process interactions in particle-bed 3D printing by Selective Cement Activation (SCA). In SCA, a particle-bed consisting of fine aggregates and cement is applied layerwise. Inbetween the layerwise application, a liquid is applied selectively on the upper layer of the particle-bed. Thereby, a the cement hydration reaction is induced locally and the particle-bed hardens at the desired places. In the second funding period of this project, there is a focus on …
Research Summary Report of C04
Integrating Digital Design and Additive Manufacturing through BIM-Based Decision Support and Digital Twin Methods [07.06.2024] Li, Chao; doctoral researcher, chao1.li@tum.de Petzold, Frank; PL, petzold@tum.de Technical University of Munich, TUM School of Engineering and Design, Chair of Architectural Informatics Project C04-WP1 aims to conceive a design decision support system (DDSS) to integrate AM technologies in the early design phase. Project C04 has formalized a ontology-based knowledge base, enabling analysis of AM for building design regarding geometric and functional conformity. The DDSS will be strengthened by implementing the case-based reasoning (CBR) method to integrate AM experts’ know-how, experience, and practical examples into the architectural design process. Summary How to capitalize multi-domain expertise in a BIM-based design workflow, and how to …
Research Summary Report of C03
Integration of Passive and Active Functions in Additively Manufactured Construction Elements [29.05.2024] Auer, Thomas; PL, thomas.auer@tum.de * Briels, David; doctoral researcher, david.briels@tum.de * Nouman, Ahmad; doctoral researcher, ahmad.nouman@tum.de * * Technical University of Munich, TUM School of Engineering and Design, Chair of Building Technology and Climate Responsive Design In engineering advancements, Additive Manufacturing in Construction (AMC) represents a significant paradigm shift. To fully harness the capabilities of AMC, our project, C03, is dedicated to fundamentally transforming the design of building elements. Additive Manufacturing (AM) facilitates the creation of highly specialized components that enhance both passive and active functionalities within buildings. It includes aspects of building physics, such as heat transfer and acoustics, and building services, such as heating, cooling, …
Digital Concrete 2024
Announcement: 4th RILEM International Conference on Concrete and Digital Fabrication We are thrilled to announce the 4th RILEM International Conference on Concrete and Digital Fabrication (Digital Concrete 2024), taking place from September 4-6, 2024, in Munich. Hosted by the Collaborative Research Centre TRR 277, Technical University of Braunschweig, and Technical University of Munich, this event will showcase cutting-edge advancements in concrete additive manufacturing and sustainable digital workflows. Join researchers, engineers, architects, and industry leaders in Munich for this pioneering event. For more information and registration, visit Digital Concrete 2024. https://amc-trr277.de/wp-content/uploads/2024/06/DC_2024_Teaser3_Speaker_Tittelboom.mp4 Plenary Speaker Kim Van Tittelboom https://amc-trr277.de/wp-content/uploads/2024/06/DC_2024_Teaser2_Speaker_Wolfs.mp4 Plenary Speaker Rob Wolf
Research Summary Report of A04
Integrated Additive Manufacturing Processes for Reinforced Shotcrete 3D Printing (SC3DP) Elements with Precise Surface Quality [24.05.2024] Böhler, David1; doctoral researcher, d.boehler@ibmb.tu-bs.de Rudolph, Jennifer1; doctoral researcher, j.rudolph@ibmb.tu-bs.de Freund, Niklas1; doctoral researcher, n.freund@ibmb.tu-bs.de Lowke, Dirk2; project leader, lowke@tum.de 1TU Braunschweig, Institute of Building Materials and Concrete Construction and Fire Safety (iBMB) 2TU Munich, Department of Materials Engineering Main Goal Project A04 investigates cooperative Additive Manufacturing (AM) processes based on Shotcrete 3D Printing (SC3DP). The aim of this project is a fundamental understanding of the SC3DP technology to manufacture sustainable, multi-objective optimised, reinforced concrete components with geometrically precise surface quality and improved building physics by functional integration. Current state of research 3D concrete printing (3DCP) has the potential to significantly …
Research Summary Report of A02
Particle-Bed 3D Printing by Selective Cement Paste Intrusion (SPI) – Particle Surface Functionalisation, Particle Synthesis and Integration of WAAM Reinforcement [02.05.2024] Riegger, Felix; Doctoral researcher; Felix.Riegger@iwb.tum.de Baehr, Siegfried; Head of the research group; Siegfried.Baehr@iwb.tum.de All: Technical University of Munich, Institute for Machine Tools and Industrial Management Main Goal To enable selective paste intrusion (SPI) for practical applications, the inclusion of reinforcement is mandatory. The focus of the first funding period was set on implementing reinforcements in SPI parts by using wire arc additive manufacturing (WAAM). During the first funding period, two main issues were identified: the need for increased ecological sustainability for the combined process of SPI+WAAM and accelerated process velocities to improve the economic efficiency. Therefore, the main …
Research Summary Report of B05
Principles of Mobile Robotics for Additive Manufacturing in Construction [02.05.2024] Dielemans, Gido; PhD Researcher, gido.dielemans@tum.de Technical University of Munich, TT Professorship of Digital Fabrication. Main Goal InjeIn this research, we investigate the deployment of mobile robots in construction scenarios for the additive manufacturing of building components through deposition-based 3D printing techniques. Our objective is to enhance on-site precision by enabling these robots to adjust their 3D printing operations autonomously in response to their immediate environment, facilitating the in-situ fabrication of building elements. We further aim to provide scalability via the parallelisation of tasks among multiple mobile robots, thereby increasing efficiency and expanding geometric possibilities. Summary Our approach utilises a method termed “print-drive-print,” which separates navigation and manipulation routines …
Research Summary Report of A09
Injection 3D Concrete Printing (I3DCP) – Material Efficient Lightweight Reinforced Concrete Structures based on Spatially Complex Strut-and-Tie Models [20.04.2024] Mai, Inka, Project leader, mai@tu-berlin.de, TU Berlin, institute of civil engineering, chair of robot assisted manufacturing of the built environment. Main Goal Injection 3D Concrete Printing (I3DCP) is a new additive manufacturing process where a fluid of material A is robotically injected into another fluid of another material B. The role of material B is to support material A such that material A maintains a stable position. In general, I3DCP can be categorized into sub-categories, whereby the following two subcategories are addressed within this project: Concrete in Suspension (CiS) where concrete is injected into a non-hardening carrier liquid and …
Research Summary Report of C06
Integration of Additive Manufacturing into a Cyber-Physical Construction System [16.04.2024] Placzek, Gerrit; Doctoral researcher, g.placzek@tu-braunschweig.de, Schwerdtner, Patrick; Project Leader, patrick.schwerdtner@tu-braunschweig.de both: TU Braunschweig, IBB Main Goal The integration of additive manufacturing into construction requires an interdisciplinary approach. The different competences of the team – digital fabrication in architecture (Hack), geodesy and photogrammetry (Gerke) and construction management (Schwerdtner) – lead to research from diverse perspectives on the various scalar levels of construction to be viewed holistically: component, building and industry scale. Within Subproject C06, the goal of the first phase was to create a continuous digital and lean-based process chain from design (using BIM method) to fabrication (using AM method). Based on process models und strategic decisions, we investigated …
Research Associate (Doctoral Candidate) (m/f/d) in the field of digital and additive manufacturing (3D-printing)
We are looking for candidates who have demonstrated excellent achievements in research and teaching in an internationally recognized scientific environment, relative to the relevant career level (please see www.tum.de/en/faculty-recruiting-faq/ for further information). A university degree and an outstanding doctoral degree or equivalent scientific qualification, as well as pedagogical aptitude, are prerequisites. Substantial research experience abroad is expected.
Research Summary Report of A07
Wire Arc Additive Manufacturing (WAAM) of High Strength and Individualized Steel Components [05.04.2024] Jurke, Florian; Research Assistant, florian.jurke@mb.tu-chemnitz.de Kevin Hoefer, Research Assistant, kevin.hoefer@mb.tu-chemnitz.de Hensel, Jonas; Project Leader, jonas.hensel@mb.tu-chemnitz.de Main Goal A07 focuses on understanding the interaction between DED-arc components and existing structures, developing load-specific strengthening solutions and designing welding strategies. A design framework will incorporate manufacturing constraints and optimization tools for efficient structural components. Additionally, online-process control will be implemented to compensate deviations in component geometry and temperature within the process, using a “Learning-by-Printing” approach. Overall, the project seeks to advance DED-arc application in construction by improving efficiency, reducing material usage and enhancing structural performance. Summary Before Johanna Müller left from the TRR after four years, she constructed …
German Steel Construction Award for Linus Schmitz
and the winner is… Linus Paul Schmitz, winner of the German Steel Construction Award 2024 for his term paper on the topic: SERIAL becomes INDIVIDUAL, local reinforcement of standard I-profiles using WAAM technology. Steel beams can be exposed to individual load situations, creating a need for additional reinforcement. His solution: Using WAAM, i.e. the free additive application of material at the points where the load case is increased, can be individually reinforced without having to use a generally reinforced steel girder. This saves material. We congratulate Linus on this great success and of course all those involved, such as the ITE, TU Braunschweig, the AMC, TU Braunschweig and TU Munich as well as Harald Kloft as supervisor. If you want …
Research Summary Report of A06
Laser Powder-Bed Fusion (LPBF) of Steel Elements for Construction – Basics of Design and Mechanical Resilience [19.03.2024] Blankenhagen, Jakob; doctoral researcher; Jakob.blankenhagen@tum.de Technical University of Munich, Chair of Metal Structures Wenzler, David; doctoral researcher; david.wenzler@tum.de Technical University of Munich, Institute for Machine Tools and Industrial Management Summary The project A06 aims to develop a methodology for producing safe and functional structural steel elements for construction using LPBF. This involves integrating complex LPBF parts into large-scale structures. For this purpose, the focus is laid on transferring results and qualification methods from the first funding period to new materials, such as Printdur HSA®. This steel material has been developed specifically for LPBF. And offers higher strength and a …
Research Summary Report of A05
Integration of Individualized Prefabricated Fibre Reinforcement in Additive Manufacturing with Concrete [13.03.2024] Gantner, Stefan; Scientific Researcher, stefan.gantner@tu-bs.de Hack, Norman; Project Leader, n.hack@tu-braunschweig.de Collaboration: Amiri, Fatemeh; Scientific Researcher, fatemeh.amiri@tu-braunschweig.de all: TU BS, Institute of Structural Design (ITE) Main Goal Cement-based additive manufacturing techniques need to be enhanced by the ability of integrating reinforcement, in order to fulfil requirements of construction. This project focuses on non-metallic continuous fibre reinforcement, which is not only corrosion resistant but also flexible in handling. Instead of bending and welding, glass or carbon fibre rovings can be processed robotically by winding onto a support structure. Respective fabrication strategies and their interaction with additive manufacturing of concrete are the main focus of this project. Summary Cement-based …
