[{"type":"book_chapter","publication":"Innovative Product Development by Additive Manufacturing 2021","status":"public","_id":"34113","user_id":"35970","department":[{"_id":"146"},{"_id":"219"}],"language":[{"iso":"eng"}],"publication_status":"published","quality_controlled":"1","publication_identifier":{"isbn":["9783031059179","9783031059186"]},"year":"2022","place":"Cham","citation":{"ieee":"M. Haase and D. Zimmer, “Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures,” in <i>Innovative Product Development by Additive Manufacturing 2021</i>, Cham: Springer International Publishing, 2022.","chicago":"Haase, Michael, and Detmar Zimmer. “Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures.” In <i>Innovative Product Development by Additive Manufacturing 2021</i>. Cham: Springer International Publishing, 2022. <a href=\"https://doi.org/10.1007/978-3-031-05918-6_10\">https://doi.org/10.1007/978-3-031-05918-6_10</a>.","ama":"Haase M, Zimmer D. Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures. In: <i>Innovative Product Development by Additive Manufacturing 2021</i>. Springer International Publishing; 2022. doi:<a href=\"https://doi.org/10.1007/978-3-031-05918-6_10\">10.1007/978-3-031-05918-6_10</a>","apa":"Haase, M., &#38; Zimmer, D. (2022). Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures. In <i>Innovative Product Development by Additive Manufacturing 2021</i>. Springer International Publishing. <a href=\"https://doi.org/10.1007/978-3-031-05918-6_10\">https://doi.org/10.1007/978-3-031-05918-6_10</a>","short":"M. Haase, D. Zimmer, in: Innovative Product Development by Additive Manufacturing 2021, Springer International Publishing, Cham, 2022.","bibtex":"@inbook{Haase_Zimmer_2022, place={Cham}, title={Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures}, DOI={<a href=\"https://doi.org/10.1007/978-3-031-05918-6_10\">10.1007/978-3-031-05918-6_10</a>}, booktitle={Innovative Product Development by Additive Manufacturing 2021}, publisher={Springer International Publishing}, author={Haase, Michael and Zimmer, Detmar}, year={2022} }","mla":"Haase, Michael, and Detmar Zimmer. “Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures.” <i>Innovative Product Development by Additive Manufacturing 2021</i>, Springer International Publishing, 2022, doi:<a href=\"https://doi.org/10.1007/978-3-031-05918-6_10\">10.1007/978-3-031-05918-6_10</a>."},"date_updated":"2023-04-28T05:24:04Z","publisher":"Springer International Publishing","date_created":"2022-11-18T12:18:00Z","author":[{"last_name":"Haase","id":"35970","full_name":"Haase, Michael","first_name":"Michael"},{"first_name":"Detmar","id":"604","full_name":"Zimmer, Detmar","last_name":"Zimmer"}],"title":"Systematic Investigations Concerning Eddy Currents in Additively Manufactured Structures","doi":"10.1007/978-3-031-05918-6_10"},{"keyword":["Mechanical Engineering","General Materials Science"],"article_number":"146442072210934","language":[{"iso":"eng"}],"_id":"30962","project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"}],"department":[{"_id":"157"},{"_id":"630"}],"user_id":"34782","abstract":[{"lang":"eng","text":"<jats:p> Clinching as a mechanical joining process has become established in many areas of car body. In order to predict relevant properties of clinched joints and to ensure the reliability of the process, it is numerically simulated during the product development process. The prediction accuracy of the simulated process depends on the implemented friction model. Therefore, a new method for determining friction coefficients in sheet metal materials was developed and tested. The aim of this study is the numerical investigation of this experimental method by means of FE simulation. The experimental setup is modelled in a 3D numerical simulation taking into account the process parameters varying in the experiment, such as geometric properties, contact pressure and contact velocity. Furthermore, the contact description of the model is calibrated via the experimentally determined friction coefficients according to clinch-relevant parameter space. It is shown that the assumptions made in the determination of the experimental data in preliminary work are valid. In addition, it is investigated to what extent the standard Coulomb friction model in the FEM can reproduce the results of the experimental method. </jats:p>"}],"status":"public","publication":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications","type":"journal_article","title":"Numerical investigation of a friction  test to determine the friction  coefficients for the clinching process","doi":"10.1177/14644207221093468","date_updated":"2023-04-28T11:31:35Z","publisher":"SAGE Publications","date_created":"2022-04-27T08:58:11Z","author":[{"first_name":"Christian Roman","last_name":"Bielak","id":"34782","full_name":"Bielak, Christian Roman"},{"first_name":"Max","id":"45779","full_name":"Böhnke, Max","last_name":"Böhnke"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert"},{"first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056","orcid":"0000-0002-2763-1246","last_name":"Meschut"}],"year":"2022","citation":{"bibtex":"@article{Bielak_Böhnke_Bobbert_Meschut_2022, title={Numerical investigation of a friction  test to determine the friction  coefficients for the clinching process}, DOI={<a href=\"https://doi.org/10.1177/14644207221093468\">10.1177/14644207221093468</a>}, number={146442072210934}, journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications}, author={Bielak, Christian Roman and Böhnke, Max and Bobbert, Mathias and Meschut, Gerson}, year={2022} }","short":"C.R. Bielak, M. Böhnke, M. Bobbert, G. Meschut, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications (2022).","mla":"Bielak, Christian Roman, et al. “Numerical Investigation of a Friction  Test to Determine the Friction  Coefficients for the Clinching Process.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, 146442072210934, SAGE Publications, 2022, doi:<a href=\"https://doi.org/10.1177/14644207221093468\">10.1177/14644207221093468</a>.","apa":"Bielak, C. R., Böhnke, M., Bobbert, M., &#38; Meschut, G. (2022). Numerical investigation of a friction  test to determine the friction  coefficients for the clinching process. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, Article 146442072210934. <a href=\"https://doi.org/10.1177/14644207221093468\">https://doi.org/10.1177/14644207221093468</a>","chicago":"Bielak, Christian Roman, Max Böhnke, Mathias Bobbert, and Gerson Meschut. “Numerical Investigation of a Friction  Test to Determine the Friction  Coefficients for the Clinching Process.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, 2022. <a href=\"https://doi.org/10.1177/14644207221093468\">https://doi.org/10.1177/14644207221093468</a>.","ieee":"C. R. Bielak, M. Böhnke, M. Bobbert, and G. Meschut, “Numerical investigation of a friction  test to determine the friction  coefficients for the clinching process,” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, Art. no. 146442072210934, 2022, doi: <a href=\"https://doi.org/10.1177/14644207221093468\">10.1177/14644207221093468</a>.","ama":"Bielak CR, Böhnke M, Bobbert M, Meschut G. Numerical investigation of a friction  test to determine the friction  coefficients for the clinching process. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>. Published online 2022. doi:<a href=\"https://doi.org/10.1177/14644207221093468\">10.1177/14644207221093468</a>"},"publication_identifier":{"issn":["1464-4207","2041-3076"]},"quality_controlled":"1","publication_status":"published"},{"year":"2022","quality_controlled":"1","title":"Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area","publisher":"Springer Science and Business Media LLC","date_created":"2022-02-22T12:52:09Z","abstract":[{"text":"The components of a body in white consist of many individual thin-walled sheet metal parts, which usually are manufactured in deep-drawing processes. In general, the conditions in a deep-drawing process change due to changing tribology conditions, varying degrees of spring back, or scattering material properties in the sheet blanks, which affects the resulting pre-strain. Mechanical joining processes, especially clinching, are influenced by these process-related pre-strains. The final geometric shape of a clinched joint is affected to a significant level by the prior material deformation when joining with constant process parameters. That leads to a change in the stiffness and force transmission in the clinched joint due to the different geometric dimensions, such as interlock, neck thickness and bottom thickness, which directly affect the load bearing capacity. Here, the influence of the pre-straining in the deep drawing process on the force distribution in clinch points in an automotive assembly is investigated by finite-element models numerically. In further studies, the results are implemented in an optimization tool for designing clinched components. The methodology starts with a pre-straining of metal sheets. This step is followed by 2D rotationally symmetric forming simulations of the joining process. The resulting mesh of each forming simulation is rotated and 3D models are obtained. The clinched joint solid model with pre-strains is used further to determine the joint stiffnesses. With the simulation of the same test set-up with an equivalent point-connector model, the equivalent stiffness for each pre-strain combination is determined. Simulations are performed on a clinched component to assess the influence of pre-strain and sheet thinning on the clinched joint loadings by using the equivalent stiffnesses. The investigations clearly show that for the selected component, the loadings at the clinch points are dependent on the sheet thinning and the stiffnesses due to pre-strain. The magnitude of the influence varies depending on the quantity considered. For example, the shear force is more sensitive to the joint stiffness than to the sheet thinning.</jats:p>","lang":"eng"}],"publication":"Production Engineering","keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering"],"language":[{"iso":"eng"}],"citation":{"ieee":"S. Martin, C. R. Bielak, M. Bobbert, T. Tröster, and G. Meschut, “Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area,” <i>Production Engineering</i>, 2022, doi: <a href=\"https://doi.org/10.1007/s11740-021-01103-w\">10.1007/s11740-021-01103-w</a>.","chicago":"Martin, Sven, Christian Roman Bielak, Mathias Bobbert, Thomas Tröster, and Gerson Meschut. “Numerical Investigation of the Clinched Joint Loadings Considering the Initial Pre-Strain in the Joining Area.” <i>Production Engineering</i>, 2022. <a href=\"https://doi.org/10.1007/s11740-021-01103-w\">https://doi.org/10.1007/s11740-021-01103-w</a>.","ama":"Martin S, Bielak CR, Bobbert M, Tröster T, Meschut G. Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area. <i>Production Engineering</i>. Published online 2022. doi:<a href=\"https://doi.org/10.1007/s11740-021-01103-w\">10.1007/s11740-021-01103-w</a>","apa":"Martin, S., Bielak, C. R., Bobbert, M., Tröster, T., &#38; Meschut, G. (2022). Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area. <i>Production Engineering</i>. <a href=\"https://doi.org/10.1007/s11740-021-01103-w\">https://doi.org/10.1007/s11740-021-01103-w</a>","mla":"Martin, Sven, et al. “Numerical Investigation of the Clinched Joint Loadings Considering the Initial Pre-Strain in the Joining Area.” <i>Production Engineering</i>, Springer Science and Business Media LLC, 2022, doi:<a href=\"https://doi.org/10.1007/s11740-021-01103-w\">10.1007/s11740-021-01103-w</a>.","bibtex":"@article{Martin_Bielak_Bobbert_Tröster_Meschut_2022, title={Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area}, DOI={<a href=\"https://doi.org/10.1007/s11740-021-01103-w\">10.1007/s11740-021-01103-w</a>}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Martin, Sven and Bielak, Christian Roman and Bobbert, Mathias and Tröster, Thomas and Meschut, Gerson}, year={2022} }","short":"S. Martin, C.R. Bielak, M. Bobbert, T. Tröster, G. Meschut, Production Engineering (2022)."},"publication_identifier":{"issn":["0944-6524","1863-7353"]},"publication_status":"published","doi":"10.1007/s11740-021-01103-w","main_file_link":[{"open_access":"1","url":"https://link.springer.com/article/10.1007/s11740-021-01103-w"}],"date_updated":"2023-04-28T11:57:22Z","oa":"1","author":[{"last_name":"Martin","id":"38177","full_name":"Martin, Sven","first_name":"Sven"},{"last_name":"Bielak","full_name":"Bielak, Christian Roman","id":"34782","first_name":"Christian Roman"},{"first_name":"Mathias","last_name":"Bobbert","full_name":"Bobbert, Mathias","id":"7850"},{"last_name":"Tröster","id":"553","full_name":"Tröster, Thomas","first_name":"Thomas"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"}],"status":"public","type":"journal_article","_id":"29951","project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"name":"TRR 285 – A01: TRR 285 - Subproject A01","_id":"135"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"name":"TRR 285 – B01: TRR 285 - Subproject B01","_id":"140"}],"department":[{"_id":"321"},{"_id":"149"},{"_id":"630"},{"_id":"157"}],"user_id":"38177"},{"language":[{"iso":"eng"}],"project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"name":"TRR 285 – B01: TRR 285 - Subproject B01","_id":"140"}],"_id":"32813","user_id":"38177","department":[{"_id":"321"},{"_id":"149"},{"_id":"630"}],"status":"public","type":"journal_article","publication":"Key Engineering Materials","title":"Influence of the Surrounding Sheet Geometry on a Clinched Joint","main_file_link":[{"url":"https://www.scientific.net/KEM.926.1505","open_access":"1"}],"conference":{"location":"Braga","end_date":"29.04.2022","start_date":"27.04.2022","name":"25th International Conference in Material Forming"},"doi":"  https://doi.org/10.4028/p-09md1c","date_updated":"2023-04-28T11:58:23Z","oa":"1","date_created":"2022-08-15T11:02:37Z","author":[{"last_name":"Martin","full_name":"Martin, Sven","id":"38177","first_name":"Sven"},{"full_name":"Kurtusic, Kristijan","last_name":"Kurtusic","first_name":"Kristijan"},{"id":"553","full_name":"Tröster, Thomas","last_name":"Tröster","first_name":"Thomas"}],"volume":927,"year":"2022","citation":{"ama":"Martin S, Kurtusic K, Tröster T. Influence of the Surrounding Sheet Geometry on a Clinched Joint. <i>Key Engineering Materials</i>. 2022;927. doi:<a href=\"https://doi.org/  https://doi.org/10.4028/p-09md1c\">  https://doi.org/10.4028/p-09md1c</a>","ieee":"S. Martin, K. Kurtusic, and T. Tröster, “Influence of the Surrounding Sheet Geometry on a Clinched Joint,” <i>Key Engineering Materials</i>, vol. 927, 2022, doi: <a href=\"https://doi.org/  https://doi.org/10.4028/p-09md1c\">  https://doi.org/10.4028/p-09md1c</a>.","chicago":"Martin, Sven, Kristijan Kurtusic, and Thomas Tröster. “Influence of the Surrounding Sheet Geometry on a Clinched Joint.” <i>Key Engineering Materials</i> 927 (2022). <a href=\"https://doi.org/  https://doi.org/10.4028/p-09md1c\">https://doi.org/  https://doi.org/10.4028/p-09md1c</a>.","apa":"Martin, S., Kurtusic, K., &#38; Tröster, T. (2022). Influence of the Surrounding Sheet Geometry on a Clinched Joint. <i>Key Engineering Materials</i>, <i>927</i>. <a href=\"https://doi.org/  https://doi.org/10.4028/p-09md1c\">https://doi.org/  https://doi.org/10.4028/p-09md1c</a>","bibtex":"@article{Martin_Kurtusic_Tröster_2022, title={Influence of the Surrounding Sheet Geometry on a Clinched Joint}, volume={927}, DOI={<a href=\"https://doi.org/  https://doi.org/10.4028/p-09md1c\">  https://doi.org/10.4028/p-09md1c</a>}, journal={Key Engineering Materials}, author={Martin, Sven and Kurtusic, Kristijan and Tröster, Thomas}, year={2022} }","short":"S. Martin, K. Kurtusic, T. Tröster, Key Engineering Materials 927 (2022).","mla":"Martin, Sven, et al. “Influence of the Surrounding Sheet Geometry on a Clinched Joint.” <i>Key Engineering Materials</i>, vol. 927, 2022, doi:<a href=\"https://doi.org/  https://doi.org/10.4028/p-09md1c\">  https://doi.org/10.4028/p-09md1c</a>."},"intvolume":"       927","quality_controlled":"1"},{"user_id":"36287","department":[{"_id":"156"},{"_id":"153"},{"_id":"241"}],"_id":"34000","type":"journal_article","status":"public","author":[{"full_name":"Rozo Vasquez, Julian","last_name":"Rozo Vasquez","first_name":"Julian"},{"last_name":"Kanagarajah","full_name":"Kanagarajah, Hanigah","first_name":"Hanigah"},{"full_name":"Arian, Bahman","id":"36287","last_name":"Arian","first_name":"Bahman"},{"first_name":"Lukas","last_name":"Kersting","full_name":"Kersting, Lukas"},{"last_name":"Homberg","full_name":"Homberg, Werner","id":"233","first_name":"Werner"},{"first_name":"Ansgar","full_name":"Trächtler, Ansgar","id":"552","last_name":"Trächtler"},{"last_name":"Walther","full_name":"Walther, Frank","first_name":"Frank"}],"volume":59,"date_updated":"2023-05-02T08:19:27Z","doi":"10.1515/pm-2022-0064","publication_status":"published","publication_identifier":{"issn":["2195-8599","0032-678X"]},"citation":{"ama":"Rozo Vasquez J, Kanagarajah H, Arian B, et al. Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming. <i>Practical Metallography</i>. 2022;59(11):660-675. doi:<a href=\"https://doi.org/10.1515/pm-2022-0064\">10.1515/pm-2022-0064</a>","ieee":"J. Rozo Vasquez <i>et al.</i>, “Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming,” <i>Practical Metallography</i>, vol. 59, no. 11, pp. 660–675, 2022, doi: <a href=\"https://doi.org/10.1515/pm-2022-0064\">10.1515/pm-2022-0064</a>.","chicago":"Rozo Vasquez, Julian, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting, Werner Homberg, Ansgar Trächtler, and Frank Walther. “Coupled Microscopic and Micromagnetic Depth-Specific Analysis of Plastic Deformation and Phase Transformation of Metastable Austenitic Steel AISI 304L by Flow Forming.” <i>Practical Metallography</i> 59, no. 11 (2022): 660–75. <a href=\"https://doi.org/10.1515/pm-2022-0064\">https://doi.org/10.1515/pm-2022-0064</a>.","mla":"Rozo Vasquez, Julian, et al. “Coupled Microscopic and Micromagnetic Depth-Specific Analysis of Plastic Deformation and Phase Transformation of Metastable Austenitic Steel AISI 304L by Flow Forming.” <i>Practical Metallography</i>, vol. 59, no. 11, Walter de Gruyter GmbH, 2022, pp. 660–75, doi:<a href=\"https://doi.org/10.1515/pm-2022-0064\">10.1515/pm-2022-0064</a>.","short":"J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler, F. Walther, Practical Metallography 59 (2022) 660–675.","bibtex":"@article{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2022, title={Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming}, volume={59}, DOI={<a href=\"https://doi.org/10.1515/pm-2022-0064\">10.1515/pm-2022-0064</a>}, number={11}, journal={Practical Metallography}, publisher={Walter de Gruyter GmbH}, author={Rozo Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2022}, pages={660–675} }","apa":"Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler, A., &#38; Walther, F. (2022). Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming. <i>Practical Metallography</i>, <i>59</i>(11), 660–675. <a href=\"https://doi.org/10.1515/pm-2022-0064\">https://doi.org/10.1515/pm-2022-0064</a>"},"intvolume":"        59","page":"660-675","language":[{"iso":"eng"}],"keyword":["Metals and Alloys","Mechanics of Materials","Condensed Matter Physics","Electronic","Optical and Magnetic Materials"],"publication":"Practical Metallography","abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n               <jats:p>This paper presents the characterization of the microstructure evolution during flow forming of austenitic stainless steel AISI 304L. Due to plastic deformation of metastable austenitic steel, phase transformation from γ-austenite into α’-martensite occurs. This is initiated by the formation of shear bands as product of the external stresses. By means of coupled microscopic and micromagnetic investigations, a characterization of the microstructure was carried out. In particular, this study shows the distribution of the strain-induced α’-martensite and its influence on material properties like hardness at different depths. The microstructural analyses by means of electron backscattered diffraction (EBSD) technique, evidence a higher amount of α’-martensite (ca. 23 %) close to the outer specimen surface, where the plastic deformation and the direct contact with the forming tool take place. In the middle area (ca. 1.5 mm depth from the outer surface), the portion of transformed α’-martensite drops to 7 % and in the inner surface to 2 %. These results are well correlated with microhardness and micromagnetic measurements at different depths. EBSD and atomic force microscopy (AFM) were used to make a detailed characterization of the topography and degree of deformation of the shear bands. Likewise, the mechanisms of nucleation of α’-martensite were discussed. This research contributes to the development of micromagnetic sensors to monitor the evolution of properties during flow forming. This makes them more suitable for closed-loop property control, which offers possibilities for an application-oriented and more efficient production.</jats:p>","lang":"eng"}],"date_created":"2022-11-04T08:29:21Z","publisher":"Walter de Gruyter GmbH","title":"Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation and phase transformation of metastable austenitic steel AISI 304L by flow forming","issue":"11","quality_controlled":"1","year":"2022"},{"date_created":"2022-11-04T08:27:33Z","publisher":"Trans Tech Publications, Ltd.","title":"Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes","quality_controlled":"1","year":"2022","language":[{"iso":"eng"}],"keyword":["Mechanical Engineering","Mechanics of Materials","General Materials Science"],"publication":"Key Engineering Materials","abstract":[{"text":"<jats:p>The production of complex multi-functional, high-strength parts is becoming increasingly important in the industry. Especially with small batch size, the incremental flow forming processes can be advantageous. The production of parts with complex geometry and locally graded material properties currently depicts a great challenge in the flow forming process. At this point, the usage of closed-loop control for the shape and properties could be a feasible new solution. The overall aim in this project is to establish an intelligent closed-loop control system for the wall thickness as well as the α’-martensite content of AISI 304L-workpieces in a flow forming process. To reach this goal, a novel sensor concept for online measurements of the wall thickness reduction and the martensite content during forming process is proposed. It includes the setup of a modified flow forming machine and the integration of the sensor system in the machine control. Additionally, a simulation model for the flow forming process is presented which describes the forming process with regard to the plastic workpiece deformation, the induced α’-martensite fraction, and the sensor behavior. This model was used for designing a closed-loop process control of the wall thickness reduction that was subsequently realized at the real plant including online measured feedback from the sensor system.</jats:p>","lang":"eng"}],"author":[{"full_name":"Kersting, Lukas","last_name":"Kersting","first_name":"Lukas"},{"first_name":"Bahman","last_name":"Arian","id":"36287","full_name":"Arian, Bahman"},{"first_name":"Julian Rozo","last_name":"Vasquez","full_name":"Vasquez, Julian Rozo"},{"full_name":"Trächtler, Ansgar","id":"552","last_name":"Trächtler","first_name":"Ansgar"},{"first_name":"Werner","id":"233","full_name":"Homberg, Werner","last_name":"Homberg"},{"first_name":"Frank","last_name":"Walther","full_name":"Walther, Frank"}],"volume":926,"date_updated":"2023-05-02T08:19:13Z","doi":"10.4028/p-yp2hj3","publication_status":"published","publication_identifier":{"issn":["1662-9795"]},"citation":{"chicago":"Kersting, Lukas, Bahman Arian, Julian Rozo Vasquez, Ansgar Trächtler, Werner Homberg, and Frank Walther. “Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes.” <i>Key Engineering Materials</i> 926 (2022): 862–74. <a href=\"https://doi.org/10.4028/p-yp2hj3\">https://doi.org/10.4028/p-yp2hj3</a>.","ieee":"L. Kersting, B. Arian, J. R. Vasquez, A. Trächtler, W. Homberg, and F. Walther, “Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes,” <i>Key Engineering Materials</i>, vol. 926, pp. 862–874, 2022, doi: <a href=\"https://doi.org/10.4028/p-yp2hj3\">10.4028/p-yp2hj3</a>.","ama":"Kersting L, Arian B, Vasquez JR, Trächtler A, Homberg W, Walther F. Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes. <i>Key Engineering Materials</i>. 2022;926:862-874. doi:<a href=\"https://doi.org/10.4028/p-yp2hj3\">10.4028/p-yp2hj3</a>","apa":"Kersting, L., Arian, B., Vasquez, J. R., Trächtler, A., Homberg, W., &#38; Walther, F. (2022). Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes. <i>Key Engineering Materials</i>, <i>926</i>, 862–874. <a href=\"https://doi.org/10.4028/p-yp2hj3\">https://doi.org/10.4028/p-yp2hj3</a>","short":"L. Kersting, B. Arian, J.R. Vasquez, A. Trächtler, W. Homberg, F. Walther, Key Engineering Materials 926 (2022) 862–874.","mla":"Kersting, Lukas, et al. “Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes.” <i>Key Engineering Materials</i>, vol. 926, Trans Tech Publications, Ltd., 2022, pp. 862–74, doi:<a href=\"https://doi.org/10.4028/p-yp2hj3\">10.4028/p-yp2hj3</a>.","bibtex":"@article{Kersting_Arian_Vasquez_Trächtler_Homberg_Walther_2022, title={Innovative Online Measurement and Modelling Approach for Property-Controlled Flow Forming Processes}, volume={926}, DOI={<a href=\"https://doi.org/10.4028/p-yp2hj3\">10.4028/p-yp2hj3</a>}, journal={Key Engineering Materials}, publisher={Trans Tech Publications, Ltd.}, author={Kersting, Lukas and Arian, Bahman and Vasquez, Julian Rozo and Trächtler, Ansgar and Homberg, Werner and Walther, Frank}, year={2022}, pages={862–874} }"},"page":"862-874","intvolume":"       926","user_id":"36287","department":[{"_id":"156"},{"_id":"153"},{"_id":"241"}],"_id":"33999","type":"journal_article","status":"public"},{"language":[{"iso":"eng"}],"_id":"36563","department":[{"_id":"156"},{"_id":"241"}],"user_id":"36287","status":"public","publication":"Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing","type":"conference","title":"Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel.","conference":{"end_date":"2022-09-30","location":"Stockholm","name":"ICBM 14, 14th International Conference on Barkhausen Noise and Micromagnetic Testing","start_date":"2022-09-27"},"date_updated":"2023-05-02T08:20:04Z","author":[{"last_name":"Rozo Vasquez","full_name":"Rozo Vasquez, Julian","first_name":"Julian"},{"first_name":"Frank","last_name":"Walther","full_name":"Walther, Frank"},{"first_name":"Bahman","full_name":"Arian, Bahman","id":"36287","last_name":"Arian"},{"first_name":"Werner","last_name":"Homberg","id":"233","full_name":"Homberg, Werner"},{"full_name":"Kersting, Lukas","last_name":"Kersting","first_name":"Lukas"},{"last_name":"Trächtler","full_name":"Trächtler, Ansgar","first_name":"Ansgar"}],"date_created":"2023-01-13T10:10:03Z","year":"2022","citation":{"ama":"Rozo Vasquez J, Walther F, Arian B, Homberg W, Kersting L, Trächtler A. Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel. In: <i>Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing</i>. ; 2022.","chicago":"Rozo Vasquez, Julian, Frank Walther, Bahman Arian, Werner Homberg, Lukas Kersting, and Ansgar Trächtler. “Soft Sensor Concept for Micromagnetic Depth-Specific Analysis of Phase Transformation during Flow Forming of AISI 304L Steel.” In <i>Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing</i>, 2022.","ieee":"J. Rozo Vasquez, F. Walther, B. Arian, W. Homberg, L. Kersting, and A. Trächtler, “Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel.,” presented at the ICBM 14, 14th International Conference on Barkhausen Noise and Micromagnetic Testing, Stockholm, 2022.","apa":"Rozo Vasquez, J., Walther, F., Arian, B., Homberg, W., Kersting, L., &#38; Trächtler, A. (2022). Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel. <i>Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing</i>. ICBM 14, 14th International Conference on Barkhausen Noise and Micromagnetic Testing, Stockholm.","short":"J. Rozo Vasquez, F. Walther, B. Arian, W. Homberg, L. Kersting, A. Trächtler, in: Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing, 2022.","bibtex":"@inproceedings{Rozo Vasquez_Walther_Arian_Homberg_Kersting_Trächtler_2022, title={Soft sensor concept for micromagnetic depth-specific analysis of phase transformation during flow forming of AISI 304L steel.}, booktitle={Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing}, author={Rozo Vasquez, Julian and Walther, Frank and Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar}, year={2022} }","mla":"Rozo Vasquez, Julian, et al. “Soft Sensor Concept for Micromagnetic Depth-Specific Analysis of Phase Transformation during Flow Forming of AISI 304L Steel.” <i>Proceedings of the 14th International Conference on Barkhausen Noise and Micromagnetic Testing</i>, 2022."},"quality_controlled":"1"},{"status":"public","type":"book","language":[{"iso":"eng"}],"_id":"36412","user_id":"36287","department":[{"_id":"241"},{"_id":"156"}],"place":"Magdeburg","year":"2022","citation":{"short":"L. Kersting, A. Trächtler, B. Arian, W. Homberg, J. Rozo Vasquez, F. Walther, Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile., Diedrich, Magdeburg, 2022.","mla":"Kersting, Lukas, et al. <i>Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile.</i> Diedrich, 2022.","bibtex":"@book{Kersting_Trächtler_Arian_Homberg_Rozo Vasquez_Walther_2022, place={Magdeburg}, title={Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile.}, publisher={Diedrich}, author={Kersting, Lukas and Trächtler, Ansgar and Arian, Bahman and Homberg, Werner and Rozo Vasquez, Julian and Walther, Frank}, year={2022} }","apa":"Kersting, L., Trächtler, A., Arian, B., Homberg, W., Rozo Vasquez, J., &#38; Walther, F. (2022). <i>Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile.</i> Diedrich.","ama":"Kersting L, Trächtler A, Arian B, Homberg W, Rozo Vasquez J, Walther F. <i>Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile.</i> Diedrich; 2022.","chicago":"Kersting, Lukas, Ansgar Trächtler, Bahman Arian, Werner Homberg, Julian Rozo Vasquez, and Frank Walther. <i>Echtzeitfähige Modellierung Eines Innovativen Drückwalzprozesses Für Die Eigenschaftsgeregelte Herstellung Gradierter Bauteile.</i> Magdeburg: Diedrich, 2022.","ieee":"L. Kersting, A. Trächtler, B. Arian, W. Homberg, J. Rozo Vasquez, and F. Walther, <i>Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile.</i> Magdeburg: Diedrich, 2022."},"publication_identifier":{"isbn":["978-3-948749-23-1 "]},"quality_controlled":"1","title":"Echtzeitfähige Modellierung eines innovativen Drückwalzprozesses für die eigenschaftsgeregelte Herstellung gradierter Bauteile.","date_updated":"2023-05-02T08:20:36Z","publisher":"Diedrich","author":[{"first_name":"Lukas","full_name":"Kersting, Lukas","last_name":"Kersting"},{"full_name":"Trächtler, Ansgar","last_name":"Trächtler","first_name":"Ansgar"},{"last_name":"Arian","id":"36287","full_name":"Arian, Bahman","first_name":"Bahman"},{"first_name":"Werner","last_name":"Homberg","id":"233","full_name":"Homberg, Werner"},{"last_name":"Rozo Vasquez","full_name":"Rozo Vasquez, Julian","first_name":"Julian"},{"last_name":"Walther","full_name":"Walther, Frank","first_name":"Frank"}],"date_created":"2023-01-12T11:44:49Z"},{"date_created":"2022-03-10T12:35:18Z","publisher":"Springer","title":"Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties","quality_controlled":"1","year":"2022","language":[{"iso":"eng"}],"publication":"JOM - The Journal of The Minerals, Metals & Materials Society (TMS)","abstract":[{"lang":"eng","text":"Confidence in additive manufacturing technologies is directly related to the predictability of part properties, which is influenced by several factors. To gain confidence, online process monitoring with dedicated and reliable feedback is desirable for every process. In this project, a powder bed monitoring system was developed as a retrofit solution for the EOS P3 laser sintering machines. A high-resolution camera records each layer, which is analyzed by a Region-Based Convolutional Neural Network (Mask R-CNN). Over 2500 images were annotated and classified to train the network in detecting defects in the powder bed at a very high level. Each defect is checked for intersection with exposure areas. To distinguish between acceptable imperfections and critical defects that lead to part rejection, the impact of these imperfections on part properties is investigated."}],"volume":74,"author":[{"first_name":"Sven Helge","id":"71545","full_name":"Klippstein, Sven Helge","last_name":"Klippstein"},{"first_name":"Florian","last_name":"Heiny","full_name":"Heiny, Florian","id":"14053"},{"first_name":"Nagaraju","full_name":"Pashikanti,, Nagaraju","last_name":"Pashikanti,"},{"last_name":"Gessler","full_name":"Gessler, Monika","first_name":"Monika"},{"first_name":"Hans-Joachim","id":"464","full_name":"Schmid, Hans-Joachim","orcid":"000-0001-8590-1921","last_name":"Schmid"}],"date_updated":"2023-05-04T08:32:55Z","conference":{"start_date":"02.08.2021","name":"Solid Freeform Fabrication 2021","location":"Online","end_date":"04.08.2021"},"doi":"https://doi.org/10.1007/s11837-021-05042-w ","publication_status":"published","intvolume":"        74","page":"1149–1157","citation":{"short":"S.H. Klippstein, F. Heiny, N. Pashikanti, M. Gessler, H.-J. Schmid, JOM - The Journal of The Minerals, Metals &#38; Materials Society (TMS) 74 (2022) 1149–1157.","mla":"Klippstein, Sven Helge, et al. “Powder Spread Process Monitoring in Polymer Laser Sintering and Its Influences on Part Properties.” <i>JOM - The Journal of The Minerals, Metals &#38; Materials Society (TMS)</i>, vol. 74, Springer, 2022, pp. 1149–1157, doi:<a href=\"https://doi.org/10.1007/s11837-021-05042-w \">https://doi.org/10.1007/s11837-021-05042-w </a>.","bibtex":"@article{Klippstein_Heiny_Pashikanti,_Gessler_Schmid_2022, title={Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties}, volume={74}, DOI={<a href=\"https://doi.org/10.1007/s11837-021-05042-w \">https://doi.org/10.1007/s11837-021-05042-w </a>}, journal={JOM - The Journal of The Minerals, Metals &#38; Materials Society (TMS)}, publisher={Springer}, author={Klippstein, Sven Helge and Heiny, Florian and Pashikanti, Nagaraju and Gessler, Monika and Schmid, Hans-Joachim}, year={2022}, pages={1149–1157} }","apa":"Klippstein, S. H., Heiny, F., Pashikanti, N., Gessler, M., &#38; Schmid, H.-J. (2022). Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties. <i>JOM - The Journal of The Minerals, Metals &#38; Materials Society (TMS)</i>, <i>74</i>, 1149–1157. <a href=\"https://doi.org/10.1007/s11837-021-05042-w \">https://doi.org/10.1007/s11837-021-05042-w </a>","ama":"Klippstein SH, Heiny F, Pashikanti, N, Gessler M, Schmid H-J. Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties. <i>JOM - The Journal of The Minerals, Metals &#38; Materials Society (TMS)</i>. 2022;74:1149–1157. doi:<a href=\"https://doi.org/10.1007/s11837-021-05042-w \">https://doi.org/10.1007/s11837-021-05042-w </a>","chicago":"Klippstein, Sven Helge, Florian Heiny, Nagaraju Pashikanti, Monika Gessler, and Hans-Joachim Schmid. “Powder Spread Process Monitoring in Polymer Laser Sintering and Its Influences on Part Properties.” <i>JOM - The Journal of The Minerals, Metals &#38; Materials Society (TMS)</i> 74 (2022): 1149–1157. <a href=\"https://doi.org/10.1007/s11837-021-05042-w \">https://doi.org/10.1007/s11837-021-05042-w </a>.","ieee":"S. H. Klippstein, F. Heiny, N. Pashikanti, M. Gessler, and H.-J. Schmid, “Powder Spread Process Monitoring in Polymer Laser Sintering and its Influences on Part Properties,” <i>JOM - The Journal of The Minerals, Metals &#38; Materials Society (TMS)</i>, vol. 74, pp. 1149–1157, 2022, doi: <a href=\"https://doi.org/10.1007/s11837-021-05042-w \">https://doi.org/10.1007/s11837-021-05042-w </a>."},"department":[{"_id":"150"},{"_id":"624"},{"_id":"219"}],"user_id":"464","_id":"30228","article_type":"original","type":"journal_article","status":"public"},{"_id":"33356","department":[{"_id":"150"},{"_id":"624"},{"_id":"219"}],"user_id":"464","keyword":["Selective Sasersintering","Process Monitoring","Powder Spread"],"language":[{"iso":"eng"}],"publication":"Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium","type":"conference","abstract":[{"lang":"eng","text":"By monitoring the recoating process within polymer laser sintering production, it was shown that multiple powder-spread-flaws can be detected. Those groove-like flaws are expected to be the result of agglomerates jamming between the recoater and the last powder layer. This work is analyzing the interaction between powder-spread-flaws and part properties, showing the influence of the recoating process on the performance of laser sintering parts. Therefore, artificial powder-spread-flaws are applied to the build jobs of tensile test specimens which are measured and analyzed regarding the elongation at break, strength and fracture position. For the characteristics of the flaws, the artificial grooves are varied in depth and width. Furthermore, the position of the flaw is changed form mid part to close to surface areas. It was shown, that several flaws are visible at the part surface, resulting in stress concentration and reduced performance. But there are as well parts with flaw-layers, which are not visible after the build process on the part. Those parts can have significantly reduced mechanical properties as well."}],"status":"public","oa":"1","date_updated":"2023-05-04T08:31:49Z","author":[{"first_name":"Sven Helge","last_name":"Klippstein","id":"71545","full_name":"Klippstein, Sven Helge"},{"first_name":"Hans-Joachim","last_name":"Schmid","orcid":"000-0001-8590-1921","full_name":"Schmid, Hans-Joachim","id":"464"}],"date_created":"2022-09-13T16:42:10Z","title":"Powder Spread Flaws in Polymer Laser Sintering and its Influences on Mechanical Performance","main_file_link":[{"open_access":"1","url":"https://utw10945.utweb.utexas.edu/sites/default/files/2022/Powder%20Spread%20Flaws%20in%20Polymer%20Laser%20Sintering%20and.pdf"}],"quality_controlled":"1","place":"Austin, TX, USA","year":"2022","citation":{"apa":"Klippstein, S. H., &#38; Schmid, H.-J. (2022). Powder Spread Flaws in Polymer Laser Sintering and its Influences on Mechanical Performance. <i>Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium</i>.","mla":"Klippstein, Sven Helge, and Hans-Joachim Schmid. “Powder Spread Flaws in Polymer Laser Sintering and Its Influences on Mechanical Performance.” <i>Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium</i>, 2022.","short":"S.H. Klippstein, H.-J. Schmid, in: Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium, Austin, TX, USA, 2022.","bibtex":"@inproceedings{Klippstein_Schmid_2022, place={Austin, TX, USA}, title={Powder Spread Flaws in Polymer Laser Sintering and its Influences on Mechanical Performance}, booktitle={Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium}, author={Klippstein, Sven Helge and Schmid, Hans-Joachim}, year={2022} }","ieee":"S. H. Klippstein and H.-J. Schmid, “Powder Spread Flaws in Polymer Laser Sintering and its Influences on Mechanical Performance,” 2022.","chicago":"Klippstein, Sven Helge, and Hans-Joachim Schmid. “Powder Spread Flaws in Polymer Laser Sintering and Its Influences on Mechanical Performance.” In <i>Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium</i>. Austin, TX, USA, 2022.","ama":"Klippstein SH, Schmid H-J. Powder Spread Flaws in Polymer Laser Sintering and its Influences on Mechanical Performance. In: <i>Proceedings of the 33nd Annual International Solid Freeform Fabrication Symposium</i>. ; 2022."}},{"year":"2022","citation":{"apa":"Yigitbas, E. (2022). <i>Einsatz und Evaluation von Virtual Reality-Technologie in einem Informatik-Seminar</i>.","short":"E. Yigitbas, in: die hochschullehre Jahrgang 8/2022, 2022.","bibtex":"@inproceedings{Yigitbas_2022, title={Einsatz und Evaluation von Virtual Reality-Technologie in einem Informatik-Seminar}, publisher={die hochschullehre Jahrgang 8/2022}, author={Yigitbas, Enes}, year={2022} }","mla":"Yigitbas, Enes. <i>Einsatz Und Evaluation von Virtual Reality-Technologie in Einem Informatik-Seminar</i>. die hochschullehre Jahrgang 8/2022, 2022.","ieee":"E. Yigitbas, “Einsatz und Evaluation von Virtual Reality-Technologie in einem Informatik-Seminar,” 2022.","chicago":"Yigitbas, Enes. “Einsatz Und Evaluation von Virtual Reality-Technologie in Einem Informatik-Seminar.” die hochschullehre Jahrgang 8/2022, 2022.","ama":"Yigitbas E. Einsatz und Evaluation von Virtual Reality-Technologie in einem Informatik-Seminar. In: die hochschullehre Jahrgang 8/2022; 2022."},"publisher":"die hochschullehre Jahrgang 8/2022","date_updated":"2023-05-12T08:03:51Z","date_created":"2023-05-12T08:03:33Z","author":[{"orcid":"0000-0002-5967-833X","last_name":"Yigitbas","full_name":"Yigitbas, Enes","id":"8447","first_name":"Enes"}],"title":"Einsatz und Evaluation von Virtual Reality-Technologie in einem Informatik-Seminar","type":"conference","status":"public","_id":"44838","user_id":"8447","department":[{"_id":"66"},{"_id":"534"}],"language":[{"iso":"eng"}]},{"quality_controlled":"1","citation":{"chicago":"Banh, Ngoc Chi, Ingrid Scharlau, and Katharina J. Rohlfing. “Folgen Wiederholter Negation Auf Die Aufmerksamkeit.” In <i>52. Kongress Der Deutschen Gesellschaft Für Psychologie</i>, edited by Christina  Bermeitinger and Werner  Greve. Pabst Science Publishers, 2022.","ieee":"N. C. Banh, I. Scharlau, and K. J. Rohlfing, “Folgen wiederholter Negation auf die Aufmerksamkeit,” in <i>52. Kongress der Deutschen Gesellschaft für Psychologie</i>, Hildesheim, Germany, 2022.","mla":"Banh, Ngoc Chi, et al. “Folgen Wiederholter Negation Auf Die Aufmerksamkeit.” <i>52. Kongress Der Deutschen Gesellschaft Für Psychologie</i>, edited by Christina  Bermeitinger and Werner  Greve, 2022.","short":"N.C. Banh, I. Scharlau, K.J. Rohlfing, in: C. Bermeitinger, W. Greve (Eds.), 52. Kongress Der Deutschen Gesellschaft Für Psychologie, 2022.","bibtex":"@inproceedings{Banh_Scharlau_Rohlfing_2022, series={Pabst Science Publishers}, title={Folgen wiederholter Negation auf die Aufmerksamkeit}, booktitle={52. Kongress der Deutschen Gesellschaft für Psychologie}, author={Banh, Ngoc Chi and Scharlau, Ingrid and Rohlfing, Katharina J.}, editor={Bermeitinger, Christina  and Greve, Werner }, year={2022}, collection={Pabst Science Publishers} }","ama":"Banh NC, Scharlau I, Rohlfing KJ. Folgen wiederholter Negation auf die Aufmerksamkeit. In: Bermeitinger C, Greve W, eds. <i>52. Kongress Der Deutschen Gesellschaft Für Psychologie</i>. Pabst Science Publishers. ; 2022.","apa":"Banh, N. C., Scharlau, I., &#38; Rohlfing, K. J. (2022). Folgen wiederholter Negation auf die Aufmerksamkeit. In C. Bermeitinger &#38; W. Greve (Eds.), <i>52. Kongress der Deutschen Gesellschaft für Psychologie</i>."},"year":"2022","date_created":"2023-08-03T14:00:36Z","author":[{"full_name":"Banh, Ngoc Chi","id":"38219","orcid":"0000-0002-5946-4542","last_name":"Banh","first_name":"Ngoc Chi"},{"orcid":"0000-0003-2364-9489","last_name":"Scharlau","full_name":"Scharlau, Ingrid","id":"451","first_name":"Ingrid"},{"last_name":"Rohlfing","id":"50352","full_name":"Rohlfing, Katharina J.","first_name":"Katharina J."}],"date_updated":"2023-08-03T14:10:48Z","oa":"1","conference":{"location":"Hildesheim, Germany","end_date":"2022-10-15","start_date":"2022-09-10","name":"52nd Congress of the German Psychological Society"},"main_file_link":[{"open_access":"1","url":"https://www.uni-hildesheim.de/dgps2022/wp-content/uploads/2022/09/DGPsKongress2022_Abstractband_20220926.pdf"}],"title":"Folgen wiederholter Negation auf die Aufmerksamkeit","publication":"52. Kongress der Deutschen Gesellschaft für Psychologie","type":"conference_abstract","status":"public","editor":[{"full_name":"Bermeitinger, Christina ","last_name":"Bermeitinger","first_name":"Christina "},{"full_name":"Greve, Werner ","last_name":"Greve","first_name":"Werner "}],"department":[{"_id":"424"},{"_id":"660"}],"user_id":"38219","series_title":"Pabst Science Publishers","_id":"46289","project":[{"name":"TRR 318 - A05: TRR 318 - Echtzeitmessung der Aufmerksamkeit im Mensch-Roboter-Erklärdialog (Teilprojekt A05)","_id":"115","grant_number":"438445824"}],"language":[{"iso":"eng"}]},{"publication":"3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben ","type":"conference_abstract","status":"public","department":[{"_id":"150"},{"_id":"624"},{"_id":"219"},{"_id":"9"}],"user_id":"50769","_id":"31871","language":[{"iso":"ger"}],"publication_status":"published","citation":{"apa":"Kletetzka, I., &#38; Klippstein, S. H. (2022). Pulver im 3D-Druck - von Mascarabürsten bis zum Interieur eines Mini-Coopers (Vortrag). <i>3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben </i>. 3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben, Paderborn.","mla":"Kletetzka, Ivo, and Sven Helge Klippstein. “Pulver im 3D-Druck - von Mascarabürsten bis zum Interieur eines Mini-Coopers (Vortrag).” <i>3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben </i>, Universität Paderborn, 2022.","bibtex":"@inproceedings{Kletetzka_Klippstein_2022, title={Pulver im 3D-Druck - von Mascarabürsten bis zum Interieur eines Mini-Coopers (Vortrag)}, booktitle={3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben }, publisher={Universität Paderborn}, author={Kletetzka, Ivo and Klippstein, Sven Helge}, year={2022} }","short":"I. Kletetzka, S.H. Klippstein, in: 3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben , Universität Paderborn, 2022.","ieee":"I. Kletetzka and S. H. Klippstein, “Pulver im 3D-Druck - von Mascarabürsten bis zum Interieur eines Mini-Coopers (Vortrag),” presented at the 3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben, Paderborn, 2022.","chicago":"Kletetzka, Ivo, and Sven Helge Klippstein. “Pulver im 3D-Druck - von Mascarabürsten bis zum Interieur eines Mini-Coopers (Vortrag).” In <i>3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben </i>. Universität Paderborn, 2022.","ama":"Kletetzka I, Klippstein SH. Pulver im 3D-Druck - von Mascarabürsten bis zum Interieur eines Mini-Coopers (Vortrag). In: <i>3D-DRUCK HAUTNAH - Der Einfluss einer Zukunftstechnologie auf unser Leben </i>. 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Hanselle, <i>Untersuchung und Modellierung der  Materialeigenschaften von glaskugelgefüllten, im  Lasersinterprozess verarbeiteten Dry-Blends</i>. 2022.","ama":"Hanselle FP. <i>Untersuchung Und Modellierung Der  Materialeigenschaften von Glaskugelgefüllten, Im  Lasersinterprozess Verarbeiteten Dry-Blends</i>.; 2022."}},{"status":"public","type":"mastersthesis","language":[{"iso":"eng"}],"_id":"43010","user_id":"50769","department":[{"_id":"150"},{"_id":"624"},{"_id":"219"},{"_id":"9"}],"year":"2022","place":"Paderborn","citation":{"ama":"Kosanke M. <i>Oberflächenmodifikation von Glaskugeln Zur  Verbesserung Der Adhäsion Im  Lasersinterverfahren</i>.; 2022.","ieee":"M. Kosanke, <i>Oberflächenmodifikation von Glaskugeln zur  Verbesserung der Adhäsion im  Lasersinterverfahren</i>. Paderborn, 2022.","chicago":"Kosanke, Maren. <i>Oberflächenmodifikation von Glaskugeln Zur  Verbesserung Der Adhäsion Im  Lasersinterverfahren</i>. 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(2022). <i>Oberflächenmodifikation von Glaskugeln zur  Verbesserung der Adhäsion im  Lasersinterverfahren</i>."},"title":"Oberflächenmodifikation von Glaskugeln zur  Verbesserung der Adhäsion im  Lasersinterverfahren","date_updated":"2023-09-07T11:55:31Z","supervisor":[{"first_name":"Ivo","last_name":"Kletetzka","full_name":"Kletetzka, Ivo","id":"50769"},{"full_name":"Schmid, Hans-Joachim","id":"464","orcid":"000-0001-8590-1921","last_name":"Schmid","first_name":"Hans-Joachim"},{"first_name":"Steffen","full_name":"Jesinghausen, Steffen","id":"3959","orcid":"https://orcid.org/0000-0003-2611-5298","last_name":"Jesinghausen"}],"author":[{"last_name":"Kosanke","full_name":"Kosanke, Maren","first_name":"Maren"}],"date_created":"2023-03-14T09:16:10Z"},{"author":[{"last_name":"Henke","full_name":"Henke, Frederic","first_name":"Frederic"}],"supervisor":[{"full_name":"Kletetzka, Ivo","id":"50769","last_name":"Kletetzka","first_name":"Ivo"},{"first_name":"Hans-Joachim","last_name":"Schmid","orcid":"000-0001-8590-1921","full_name":"Schmid, Hans-Joachim","id":"464"}],"date_created":"2023-03-14T09:09:50Z","date_updated":"2023-09-07T11:55:48Z","title":"Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit)","citation":{"ama":"Henke F. <i>Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit)</i>.; 2022.","chicago":"Henke, Frederic. <i>Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit)</i>. Paderborn, 2022.","ieee":"F. Henke, <i>Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit)</i>. Paderborn, 2022.","mla":"Henke, Frederic. <i>Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit)</i>. 2022.","bibtex":"@book{Henke_2022, place={Paderborn}, title={Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit)}, author={Henke, Frederic}, year={2022} }","short":"F. Henke, Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit), Paderborn, 2022.","apa":"Henke, F. (2022). <i>Potenzialanalyse für die Nutzung additiver  Fertigungsverfahren bei einem  Büromöbelhersteller und Realisierung eines  Beispielbauteils (Studienarbeit)</i>."},"place":"Paderborn","year":"2022","user_id":"50769","department":[{"_id":"150"},{"_id":"624"},{"_id":"219"},{"_id":"9"}],"_id":"43007","language":[{"iso":"ger"}],"type":"mastersthesis","status":"public"},{"title":"Einfluss des Lasersinter-Prozesses auf die Recyclingfähigkeit von flammgeschütztem PA12 Pulver","supervisor":[{"first_name":"Hans-Joachim","orcid":"000-0001-8590-1921","last_name":"Schmid","full_name":"Schmid, Hans-Joachim","id":"464"},{"first_name":"Steffen","last_name":"Jesinghausen","orcid":"https://orcid.org/0000-0003-2611-5298","id":"3959","full_name":"Jesinghausen, Steffen"},{"first_name":"Fabian","orcid":"0009-0004-8412-3645 ","last_name":"Neitzel","id":"72307","full_name":"Neitzel, Fabian"}],"author":[{"first_name":"Jakob","last_name":"Ostermeier","full_name":"Ostermeier, Jakob"}],"date_created":"2023-09-07T11:49:24Z","date_updated":"2023-09-07T12:02:41Z","citation":{"ieee":"J. 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Ostermeier, Einfluss des Lasersinter-Prozesses auf die Recyclingfähigkeit von flammgeschütztem PA12 Pulver, 2022."},"year":"2022","language":[{"iso":"ger"}],"department":[{"_id":"150"},{"_id":"219"},{"_id":"624"},{"_id":"9"}],"user_id":"72307","_id":"46858","status":"public","type":"mastersthesis"},{"status":"public","type":"bachelorsthesis","language":[{"iso":"ger"}],"department":[{"_id":"150"},{"_id":"624"},{"_id":"219"},{"_id":"9"}],"user_id":"50769","_id":"43012","citation":{"ama":"Sural I. <i>Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft</i>.; 2022.","chicago":"Sural, Ilknur. <i>Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft</i>. Paderborn, 2022.","ieee":"I. Sural, <i>Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft</i>. Paderborn, 2022.","bibtex":"@book{Sural_2022, place={Paderborn}, title={Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft}, author={Sural, Ilknur}, year={2022} }","short":"I. Sural, Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft, Paderborn, 2022.","mla":"Sural, Ilknur. <i>Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft</i>. 2022.","apa":"Sural, I. (2022). <i>Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft</i>."},"year":"2022","place":"Paderborn","title":"Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft","author":[{"first_name":"Ilknur","full_name":"Sural, Ilknur","last_name":"Sural"}],"date_created":"2023-03-14T09:30:46Z","supervisor":[{"first_name":"Ivo","id":"50769","full_name":"Kletetzka, Ivo","last_name":"Kletetzka"},{"orcid":"000-0001-8590-1921","last_name":"Schmid","id":"464","full_name":"Schmid, Hans-Joachim","first_name":"Hans-Joachim"},{"first_name":"Steffen","full_name":"Jesinghausen, Steffen","id":"3959","last_name":"Jesinghausen","orcid":"https://orcid.org/0000-0003-2611-5298"}],"date_updated":"2023-09-07T11:58:53Z"},{"date_created":"2023-09-25T11:40:00Z","author":[{"full_name":"Föllinger, Otto","last_name":"Föllinger","first_name":"Otto"},{"first_name":"Ulrich","last_name":"Konigorski","full_name":"Konigorski, Ulrich"},{"last_name":"Lohmann","full_name":"Lohmann, Boris","first_name":"Boris"},{"last_name":"Roppenecker","full_name":"Roppenecker, Günter","first_name":"Günter"},{"full_name":"Trächtler, Ansgar","id":"552","last_name":"Trächtler","first_name":"Ansgar"}],"publisher":"VDE-Verlag","date_updated":"2023-09-25T13:52:53Z","title":"Regelungstechnik. Einführung in die Methoden und ihre Anwendung","edition":"13","citation":{"chicago":"Föllinger, Otto, Ulrich Konigorski, Boris Lohmann, Günter Roppenecker, and Ansgar Trächtler. <i>Regelungstechnik. Einführung in die Methoden und ihre Anwendung</i>. 13th ed. Berlin: VDE-Verlag, 2022.","ieee":"O. Föllinger, U. Konigorski, B. Lohmann, G. Roppenecker, and A. Trächtler, <i>Regelungstechnik. Einführung in die Methoden und ihre Anwendung</i>, 13th ed. Berlin: VDE-Verlag, 2022.","ama":"Föllinger O, Konigorski U, Lohmann B, Roppenecker G, Trächtler A. <i>Regelungstechnik. Einführung in die Methoden und ihre Anwendung</i>. 13th ed. VDE-Verlag; 2022.","mla":"Föllinger, Otto, et al. <i>Regelungstechnik. Einführung in die Methoden und ihre Anwendung</i>. 13th ed., VDE-Verlag, 2022.","short":"O. Föllinger, U. Konigorski, B. Lohmann, G. Roppenecker, A. Trächtler, Regelungstechnik. Einführung in die Methoden und ihre Anwendung, 13th ed., VDE-Verlag, Berlin, 2022.","bibtex":"@book{Föllinger_Konigorski_Lohmann_Roppenecker_Trächtler_2022, place={Berlin}, edition={13}, title={Regelungstechnik. Einführung in die Methoden und ihre Anwendung}, publisher={VDE-Verlag}, author={Föllinger, Otto and Konigorski, Ulrich and Lohmann, Boris and Roppenecker, Günter and Trächtler, Ansgar}, year={2022} }","apa":"Föllinger, O., Konigorski, U., Lohmann, B., Roppenecker, G., &#38; Trächtler, A. (2022). <i>Regelungstechnik. Einführung in die Methoden und ihre Anwendung</i> (13th ed.). VDE-Verlag."},"year":"2022","place":"Berlin","department":[{"_id":"153"},{"_id":"241"}],"user_id":"552","_id":"47417","language":[{"iso":"ger"}],"type":"book","status":"public"},{"date_created":"2024-02-14T09:06:04Z","title":"Formalizing cognitive biases in medical diagnostic reasoning","quality_controlled":"1","year":"2022","keyword":["Diagnostic reasoning","Cognitive bias","Cognitive model","POMDP","Bayesian network","Epilepsy","CDSS"],"ddc":["000"],"language":[{"iso":"eng"}],"publication":"Proceedings of the 8th Workshop on Formal and Cognitive Reasoning","abstract":[{"text":"This paper presents preliminary work on the formalization of three prominent cognitive biases in the diagnostic reasoning process over epileptic seizures, psychogenic seizures and syncopes. Diagnostic reasoning is understood as iterative exploration of medical evidence. This exploration is represented as a partially observable Markov decision process where the state (i.e., the correct diagnosis) is uncertain. Observation likelihoods and belief updates are computed using a Bayesian network which defines the interrelation between medical risk factors, diagnoses and potential findings. The decision problem is solved via partially observable upper confidence bounds for trees in Monte-Carlo planning. We compute a biased diagnostic exploration policy by altering the generated state transition, observation and reward during look ahead simulations. The resulting diagnostic policies reproduce reasoning errors which have only been described informally in the medical literature. We plan to use this formal representation in the future to inversely detect and classify biased reasoning in actual diagnostic trajectories obtained from physicians.","lang":"eng"}],"file":[{"success":1,"relation":"main_file","content_type":"application/pdf","file_size":261528,"access_level":"closed","file_id":"56846","file_name":"paper8.pdf","date_updated":"2024-10-31T09:59:46Z","creator":"doba2","date_created":"2024-10-31T09:59:46Z"}],"date_updated":"2024-10-31T10:00:01Z","author":[{"full_name":"Battefeld, Dominik","id":"91864","orcid":"0000-0002-5480-0594","last_name":"Battefeld","first_name":"Dominik"},{"first_name":"Stefan","full_name":"Kopp, Stefan","last_name":"Kopp"}],"conference":{"end_date":"2022-09-23","location":"Trier","name":"8th Workshop on Formal and Cognitive Reasoning (FCR)","start_date":"2022-09-19 "},"has_accepted_license":"1","citation":{"chicago":"Battefeld, Dominik, and Stefan Kopp. “Formalizing Cognitive Biases in Medical Diagnostic Reasoning.” In <i>Proceedings of the 8th Workshop on Formal and Cognitive Reasoning</i>, 2022.","ieee":"D. Battefeld and S. Kopp, “Formalizing cognitive biases in medical diagnostic reasoning,” presented at the 8th Workshop on Formal and Cognitive Reasoning (FCR), Trier, 2022.","ama":"Battefeld D, Kopp S. Formalizing cognitive biases in medical diagnostic reasoning. In: <i>Proceedings of the 8th Workshop on Formal and Cognitive Reasoning</i>. ; 2022.","apa":"Battefeld, D., &#38; Kopp, S. (2022). Formalizing cognitive biases in medical diagnostic reasoning. <i>Proceedings of the 8th Workshop on Formal and Cognitive Reasoning</i>. 8th Workshop on Formal and Cognitive Reasoning (FCR), Trier.","short":"D. Battefeld, S. Kopp, in: Proceedings of the 8th Workshop on Formal and Cognitive Reasoning, 2022.","mla":"Battefeld, Dominik, and Stefan Kopp. “Formalizing Cognitive Biases in Medical Diagnostic Reasoning.” <i>Proceedings of the 8th Workshop on Formal and Cognitive Reasoning</i>, 2022.","bibtex":"@inproceedings{Battefeld_Kopp_2022, title={Formalizing cognitive biases in medical diagnostic reasoning}, booktitle={Proceedings of the 8th Workshop on Formal and Cognitive Reasoning}, author={Battefeld, Dominik and Kopp, Stefan}, year={2022} }"},"_id":"51343","project":[{"name":"TRR 318 - C5: TRR 318 - Subproject C5","_id":"128"}],"department":[{"_id":"660"}],"user_id":"91864","file_date_updated":"2024-10-31T09:59:46Z","type":"conference","status":"public"}]