@inproceedings{FriedoHauschultzDoehleretal.2026, author = {Friedo, Maria Helene and Hauschultz, Mike Thomas and D{\"o}hler, Torsten and Erhardt, Tom and Jacobs, Hannes and Richetta, Maria and B{\"o}hme, Andrea and Krenz-Baath, Ren{\´e}}, title = {Development of Intelligent Process Automation Strategies to Enhance Selective Laser Melting Performance and Resource Efficiency}, series = {Tagungsband AALE 2026: Mechatronische Systeme f{\"u}r die Automatisierung: Fortschritt durch Pr{\"a}zision und Qualit{\"a}t}, booktitle = {Tagungsband AALE 2026: Mechatronische Systeme f{\"u}r die Automatisierung: Fortschritt durch Pr{\"a}zision und Qualit{\"a}t}, publisher = {Hochschule f{\"u}r Technik, Wirtschaft und Kultur Leipzig}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-21430}, pages = {299 -- 307}, year = {2026}, abstract = {The research project FASER advances additive manufacturing processes for metallic materials, focusing on Selective Laser Melting (SLM). FASER stands for "Fehlerfreies Additives Fertigen durch adaptive Sensorik zur Optimierung der Energie- und Ressourceneffizienz". Conducted at the Technical University of Applied Sciences Wildau, it implements a comprehensive zero-defect strategy using market-standard equipment like the One Click Metal MPrint+ SLM machine and MPure powder removal station. These systems are enhanced with adaptive multi-sensor technology and intelligent process control to boost quality, cut energy use, and minimize material waste. Central to FASER is flexible camera-based multi-sensor integration, combining optical, thermographic, and spectroscopic methods for real-time monitoring in harsh SLM environments.}, language = {en} } @inproceedings{HauschultzFriedoDoehleretal.2026, author = {Hauschultz, Mike Thomas and Friedo, Maria Helene and D{\"o}hler, Torsten and B{\"o}hme, Andrea and Richetta, Maria and Krenz-Baath, Ren{\´e}}, title = {Layer-by-Layer Process Control in Selective Laser Melting via Customized G-Code Handling}, series = {Tagungsband AALE 2026: Mechatronische Systeme f{\"u}r die Automatisierung: Fortschritt durch Pr{\"a}zision und Qualit{\"a}t}, booktitle = {Tagungsband AALE 2026: Mechatronische Systeme f{\"u}r die Automatisierung: Fortschritt durch Pr{\"a}zision und Qualit{\"a}t}, publisher = {Hochschule f{\"u}r Technik, Wirtschaft und Kultur Leipzig}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-21449}, pages = {309 -- 317}, year = {2026}, abstract = {Selective Laser Melting (SLM), also commonly referred to as laser powder bed fusion (LPBF), has become a widely adopted technology in metal additive manufacturing for both industrial and research applications. However, many commercial LPBF systems are based on closed hardware and software architectures, which limit transparency, process monitoring, and direct parameter manipulation during ongoing builds. While recent industrial machines increasingly provide standardized interfaces such as OPC UA for monitoring purposes, fine-grained, layer-wise process control remains restricted. The One Click Metal MPrint+ exemplifies this paradigm by relying on proprietary container-based job execution prepared using commercial software tools such as Autodesk Netfabb or Autodesk Fusion 360. This contribution presents an alternative approach that enables user-defined control of the MPrint+ system through a custom-developed G-code handling framework. Instead of executing complete print jobs as opaque containers, the proposed method establishes a direct network connection to the printer using its gRPC interface. Externally generated G-code is extracted, processed, and transmitted layer-wise to the machine, enabling direct interaction with the build process beyond standard job execution. The approach allows controlled variation of process parameters such as exposure strategies, hatch patterns, or recoating behavior during an ongoing build, thereby supporting efficient design-ofexperiment studies without requiring multiple independent print jobs. In addition, individual G-code commands can be executed interactively, enabling didactic use cases in which machine behavior can be directly observed and linked to abstract toolpath descriptions.}, language = {en} } @inproceedings{FriedoHauschultzDoehleretal.2023, author = {Friedo, Maria Helene and Hauschultz, Mike Thomas and D{\"o}hler, Torsten and B{\"o}hme, Andrea and Richetta, Maria and Foitzik, Andreas}, title = {Sustainable production of injection moulds through additive manufacturing and improved application of energy management}, series = {NWK 2023 - Tagungsband zur 23. Nachwuchswissenschaftler*innenkonferenz}, booktitle = {NWK 2023 - Tagungsband zur 23. Nachwuchswissenschaftler*innenkonferenz}, editor = {Stolzenburg, Frieder and Reinboth, Christian and Lohr, Thomas and Vogel, Kathleen}, publisher = {Hochschule Harz}, address = {Wernigerode}, issn = {2627-5708}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-18600}, pages = {298 -- 302}, year = {2023}, abstract = {The concept of this thesis is to optimize the manufacturing process of injection moulding tools by using additive manufacturing and thus contribute to environmental protection. For this purpose, the individual steps of the traditional manufacturing process are identified and analysed to determine which steps can be replaced by additive manufacturing. The first step is to clarify which mould components can benefit from additive manufacturing. In particular, the capabilities and limitations of additive manufacturing technologies must be considered. Furthermore, another focus is on how to optimize the cooling and temperature control of the tools. Potential savings through the use of lightweight or insulating surfaces will be examined. In addition to the technical feasibility, the cost-effectiveness of the concept will also be considered. Finally, the contribution of the concept to the reduction of the environmental impact will be evaluated. In particular, energy savings and the reduction of CO2 emissions are taken into account. The potential to optimize the injection mould manufacturing process and reduce environmental impact is significant. Using additive manufacturing can be an economic and environmental advantage.}, language = {en} } @inproceedings{WelzelHauschultzFriedoetal.2022, author = {Welzel, Felix and Hauschultz, Mike Thomas and Friedo, Maria Helene and Just, Verena and Richetta, Maria and Foitzik, Andreas}, title = {Concept for a Portable Measuring Device for the Quantitative Detection of Legionella}, series = {Open Conference Proceedings}, volume = {2}, booktitle = {Open Conference Proceedings}, publisher = {TIB Open Publishing}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-17616}, pages = {15 -- 17}, year = {2022}, abstract = {According to the drinking water regulation, drinking water systems must be tested for harmful contamination at specified intervals. To meet the legal requirements and save costs and time, a portable analysis method is to be developed. For this purpose, a concept study was conducted. It describes a portable measuring device for the quantitative detection of legionella using real-time PCR. The study includes the construction elements and conditions that are necessary for the collection, processing, and evaluation of the sample. It was found that commercially available PCR systems do not meet the size requirements and can only be represented by an in-house development. In addition, a microfluidic system must be developed that is designed for one-time use and low production cost.}, language = {en} } @inproceedings{HauschultzFriedoDoehleretal.2023, author = {Hauschultz, Mike Thomas and Friedo, Maria Helene and D{\"o}hler, Torsten and B{\"o}hme, Andrea and Richetta, Maria and Foitzik, Andreas}, title = {Additive Manufacturing of Electrodes: Innovative Applications and Opportunities}, series = {NWK 2023 - Tagungsband zur 23. Nachwuchswissenschaftler*innenkonferenz}, booktitle = {NWK 2023 - Tagungsband zur 23. Nachwuchswissenschaftler*innenkonferenz}, editor = {Stolzenburg, Frieder and Reinboth, Christian and Lohr, Thomas and Vogel, Kathleen}, publisher = {Hochschule Harz}, address = {Wernigerode}, issn = {2627-5708}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-18621}, pages = {292 -- 297}, year = {2023}, abstract = {Additive manufacturing, also known as 3D printing, has gained tremendous importance in recent years. One of the areas where additive manufacturing is particularly useful is in the fabrication of electrodes. Electrodes are an important component of a wide range of applications, including electrochemistry, biomedical engineering, energy storage, analytics, electronics as well as life sciences. Traditionally, electrodes have been manufactured through costly processes such as etching, electroplating or cutting and milling. Additive manufacturing offers a new way to fabricate electrodes by depositing materials layer by layer (Yap et al., 2015). This opens up new possibilities for designing electrodes with complex geometries and structures that would not be possible using conventional methods. As a result, 3D printed electrodes are gaining interest in fields such as electromobility, water disinfection, manufacturing, and life sciences, which will be presented in this paper.}, language = {en} } @inproceedings{HauschultzFriedoJacobsetal.2022, author = {Hauschultz, Mike Thomas and Friedo, Maria Helene and Jacobs, Hannes and Lafta, Mohammad and Engels, Andreas and Foitzik, Andreas}, title = {Low-cost Pipettierroboter auf Basis einer Portalfr{\"a}se}, series = {Open Conference Proceedings}, volume = {2}, booktitle = {Open Conference Proceedings}, publisher = {TIB Open Publishing}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-17649}, pages = {187 -- 191}, year = {2022}, abstract = {Zur Herstellung von langfristig stabilen Metall-Kautschuk-Verbunden sind chemische Haftvermittler notwendig. Nach Auftrag dieser wird Kautschuk mittels Gummispritzgießen auf die metallischen Grundk{\"o}rper aufgebracht. In Klein- und Kleinstserien kann der Haftvermittler in pr{\"a}zisen Volumina h{\"a}ndisch mit Hilfe eines Fluid-Dispensers aufgetragen werden. Allerdings verhindert dies eine Homogenit{\"a}t und Gleichheit der Schichtdicke, wodurch die Zuverl{\"a}ssigkeit und St{\"a}rke der Haftung variieren k{\"o}nnen. Als technische L{\"o}sung wurde ein Pipettierroboter avisiert. Mit Hilfe mehrerer mechanischer und elektrischer Adaptionen - so auch einer neuen Steuerungstechnik - wurden verschiedene Fluid-Dispenser auf 3-Achs-Portalfr{\"a}sen integriert. Somit konnte die volle Funktionsf{\"a}higkeit erreicht werden.}, language = {de} } @inproceedings{FriedoHauschultzJacobsetal.2022, author = {Friedo, Maria Helene and Hauschultz, Mike Thomas and Jacobs, Hannes and Lafta, Mohammad and Engels, Andreas and Foitzik, Andreas}, title = {Steuerungstechnik f{\"u}r das Auftragen von fluiden Haftvermittlern}, series = {Open Conference Proceedings}, volume = {2}, booktitle = {Open Conference Proceedings}, publisher = {TIB Open Publishing}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-17670}, pages = {217 -- 219}, year = {2022}, abstract = {The goal of this project was to enable an automated solution for the application of bonding agents to metallic bodies in the nanoliter range. For the automated application of adhesion promoters, a new control unit based on a mainboard for controlling 3D printers was used, with Marlin serving as the firmware. Adaptations were necessary in the area of motor currents, speeds, acceleration, sensitivity, print bed size and selection of mainboard and display. For the traverse paths, G-code was generated using a program in Python. For homogeneous and uniform wetting, the individual objects to be wetted are approached and the pipetting process is controlled. It was possible to establish the complete functionality.}, language = {de} } @inproceedings{StrauchWellmannFriedoetal.2022, author = {Strauch, Jessica and Wellmann, Martin and Friedo, Maria Helene and Welzel, Felix and Foitzik, Andreas}, title = {Miniaturisierung einer Smartwatch f{\"u}r Hautfeuchtesensorik}, series = {Open Conference Proceedings}, volume = {2}, booktitle = {Open Conference Proceedings}, publisher = {TIB Open Publishing}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-17653}, pages = {193 -- 195}, year = {2022}, abstract = {Das Ziel des Projekts ist, den Zustand der Haut von Neurodermitis-Patienten bei verschiedenen Bedingungen und Belastungszust{\"a}nden erfassen zu k{\"o}nnen. Dazu wurde ein Prototyp gefertigt, in den ein Mikrosensor zur Bestimmung der Umgebungsfeuchtigkeit, ein Controller mit Bluetooth zur Daten{\"u}bertragung, sowie ein Lithium-Akku zur Energieversorgung verbaut wurden.}, language = {de} } @article{HauschultzFriedoGeissleretal.2026, author = {Hauschultz, Mike Thomas and Friedo, Maria Helene and Geißler, Ute and B{\"o}hme, Andrea and Krenz-Baath, Ren{\´e}}, title = {Influence of Process Parameters Variation on Microstructure and Mechanical Properties of SLM-Printed 316L Stainless Steel}, series = {Solid State Phenomena}, volume = {383}, journal = {Solid State Phenomena}, publisher = {Trans Tech Publications}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:526-opus4-21048}, pages = {75 -- 80}, year = {2026}, abstract = {This study presents the characterization of 316L stainless steels fabricated by selective laser melting (SLM), focusing on the influence of printing parameters on microstructure and mechanical properties. The choice of process parameters is crucial for achieving desired material properties, as it directly affects the microstructure and mechanical behavior, which is important when optimizing for potential applications in several fields, such as aerospace and automotive. In this study, different scanning speeds were tested to identify optimal settings, followed by the evaluation of the effects of orientation relative to the build plate and hatching strategies to enhance performance. To assess the impact of these factors, tensile tests, microhardness measurements, and X-ray diffraction (XRD) analyses were conducted. Tensile tests revealed that higher laser scanning speed generally reduces ultimate tensile strength and elongation, likely due to an increase in porosity and a less homogeneous fusion of layers. The analysis of samples printed with different orientation relative to the build plate highlighted a strong mechanical anisotropy, with the samples printed vertically exhibiting lower tensile strength and ductility compared to horizontally printed samples. Microhardness testing further confirmed an anisotropy in material properties. XRD analysis reveals a preferential orientation of austenitic grains depending on building direction. This, in turn, influences the anisotropic behavior. These findings highlight the critical role of process parameters in tailoring the microstructure and mechanical performance of SLM-produced parts, thereby providing insights into the optimization of additive manufacturing for specific applications.}, language = {en} }