[{"department":[{"_id":"153"},{"_id":"241"},{"_id":"156"}],"user_id":"82875","_id":"62021","language":[{"iso":"eng"}],"publication":"IFAC-PapersOnLine","type":"journal_article","status":"public","volume":59,"author":[{"first_name":"Lukas","last_name":"Kersting","full_name":"Kersting, Lukas"},{"first_name":"Bahman","id":"36287","full_name":"Arian, Bahman","last_name":"Arian"},{"first_name":"Julian","full_name":"Rozo Vasquez, Julian","last_name":"Rozo Vasquez"},{"id":"552","full_name":"Trächtler, Ansgar","last_name":"Trächtler","first_name":"Ansgar"},{"first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner","id":"233"},{"last_name":"Walther","full_name":"Walther, Frank","first_name":"Frank"}],"date_created":"2025-10-30T12:14:01Z","oa":"1","date_updated":"2025-10-30T12:53:16Z","publisher":"Elsevier BV","doi":"10.1016/j.ifacol.2025.03.020","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1016/j.ifacol.2025.03.020 "}],"title":"State-space modelling approach for control and observer design in property-controlled reverse flow forming","issue":"1","publication_identifier":{"issn":["2405-8963"]},"publication_status":"published","page":"109-114","intvolume":"        59","citation":{"chicago":"Kersting, Lukas, Bahman Arian, Julian Rozo Vasquez, Ansgar Trächtler, Werner Homberg, and Frank Walther. “State-Space Modelling Approach for Control and Observer Design in Property-Controlled Reverse Flow Forming.” <i>IFAC-PapersOnLine</i> 59, no. 1 (2025): 109–14. <a href=\"https://doi.org/10.1016/j.ifacol.2025.03.020\">https://doi.org/10.1016/j.ifacol.2025.03.020</a>.","ieee":"L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, and F. Walther, “State-space modelling approach for control and observer design in property-controlled reverse flow forming,” <i>IFAC-PapersOnLine</i>, vol. 59, no. 1, pp. 109–114, 2025, doi: <a href=\"https://doi.org/10.1016/j.ifacol.2025.03.020\">10.1016/j.ifacol.2025.03.020</a>.","ama":"Kersting L, Arian B, Rozo Vasquez J, Trächtler A, Homberg W, Walther F. State-space modelling approach for control and observer design in property-controlled reverse flow forming. <i>IFAC-PapersOnLine</i>. 2025;59(1):109-114. doi:<a href=\"https://doi.org/10.1016/j.ifacol.2025.03.020\">10.1016/j.ifacol.2025.03.020</a>","short":"L. Kersting, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, F. Walther, IFAC-PapersOnLine 59 (2025) 109–114.","bibtex":"@article{Kersting_Arian_Rozo Vasquez_Trächtler_Homberg_Walther_2025, title={State-space modelling approach for control and observer design in property-controlled reverse flow forming}, volume={59}, DOI={<a href=\"https://doi.org/10.1016/j.ifacol.2025.03.020\">10.1016/j.ifacol.2025.03.020</a>}, number={1}, journal={IFAC-PapersOnLine}, publisher={Elsevier BV}, author={Kersting, Lukas and Arian, Bahman and Rozo Vasquez, Julian and Trächtler, Ansgar and Homberg, Werner and Walther, Frank}, year={2025}, pages={109–114} }","mla":"Kersting, Lukas, et al. “State-Space Modelling Approach for Control and Observer Design in Property-Controlled Reverse Flow Forming.” <i>IFAC-PapersOnLine</i>, vol. 59, no. 1, Elsevier BV, 2025, pp. 109–14, doi:<a href=\"https://doi.org/10.1016/j.ifacol.2025.03.020\">10.1016/j.ifacol.2025.03.020</a>.","apa":"Kersting, L., Arian, B., Rozo Vasquez, J., Trächtler, A., Homberg, W., &#38; Walther, F. (2025). State-space modelling approach for control and observer design in property-controlled reverse flow forming. <i>IFAC-PapersOnLine</i>, <i>59</i>(1), 109–114. <a href=\"https://doi.org/10.1016/j.ifacol.2025.03.020\">https://doi.org/10.1016/j.ifacol.2025.03.020</a>"},"year":"2025"},{"title":"In Situ Investigation of the Frictional Behaviour in Friction-Spinning","doi":"10.3390/jmmp9090302","publisher":"MDPI AG","date_updated":"2025-12-22T10:39:34Z","author":[{"first_name":"Eugen","full_name":"Wiens, Eugen","id":"7888","last_name":"Wiens"},{"full_name":"Hijazi, Dina","last_name":"Hijazi","first_name":"Dina"},{"last_name":"Jüttner","full_name":"Jüttner, Maik","first_name":"Maik"},{"first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner","id":"233"},{"last_name":"Kensy","full_name":"Kensy, Mark Dennis","first_name":"Mark Dennis"},{"full_name":"Tillmann, Wolfgang","last_name":"Tillmann","first_name":"Wolfgang"}],"date_created":"2025-12-19T10:05:03Z","volume":9,"year":"2025","citation":{"chicago":"Wiens, Eugen, Dina Hijazi, Maik Jüttner, Werner Homberg, Mark Dennis Kensy, and Wolfgang Tillmann. “In Situ Investigation of the Frictional Behaviour in Friction-Spinning.” <i>Journal of Manufacturing and Materials Processing</i> 9, no. 9 (2025). <a href=\"https://doi.org/10.3390/jmmp9090302\">https://doi.org/10.3390/jmmp9090302</a>.","ieee":"E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M. D. Kensy, and W. Tillmann, “In Situ Investigation of the Frictional Behaviour in Friction-Spinning,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 9, no. 9, Art. no. 302, 2025, doi: <a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>.","ama":"Wiens E, Hijazi D, Jüttner M, Homberg W, Kensy MD, Tillmann W. In Situ Investigation of the Frictional Behaviour in Friction-Spinning. <i>Journal of Manufacturing and Materials Processing</i>. 2025;9(9). doi:<a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>","apa":"Wiens, E., Hijazi, D., Jüttner, M., Homberg, W., Kensy, M. D., &#38; Tillmann, W. (2025). In Situ Investigation of the Frictional Behaviour in Friction-Spinning. <i>Journal of Manufacturing and Materials Processing</i>, <i>9</i>(9), Article 302. <a href=\"https://doi.org/10.3390/jmmp9090302\">https://doi.org/10.3390/jmmp9090302</a>","short":"E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M.D. Kensy, W. Tillmann, Journal of Manufacturing and Materials Processing 9 (2025).","mla":"Wiens, Eugen, et al. “In Situ Investigation of the Frictional Behaviour in Friction-Spinning.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 9, no. 9, 302, MDPI AG, 2025, doi:<a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>.","bibtex":"@article{Wiens_Hijazi_Jüttner_Homberg_Kensy_Tillmann_2025, title={In Situ Investigation of the Frictional Behaviour in Friction-Spinning}, volume={9}, DOI={<a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>}, number={9302}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Wiens, Eugen and Hijazi, Dina and Jüttner, Maik and Homberg, Werner and Kensy, Mark Dennis and Tillmann, Wolfgang}, year={2025} }"},"intvolume":"         9","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2504-4494"]},"issue":"9","article_number":"302","language":[{"iso":"eng"}],"_id":"63347","user_id":"7888","department":[{"_id":"156"}],"abstract":[{"text":"<jats:p>Friction-spinning is an incremental thermomechanical forming process that has huge potential due to its simple yet effective mechanism of utilising friction between a rotating workpiece and a forming tool to increase the workpiece’s temperature, which reduces the required forces and increases formability during the forming process. Despite the simplicity of the process’s setup, the thermomechanical loads and high relative velocities involved, especially in the contact zone, make the application of classical methods for characterising friction inaccurate. It is therefore essential to find a way to describe the frictional behaviour under real process conditions to be able to gain a holistic understanding of the process and the effect of the adjustable parameters on the outcome, especially the temperature. To achieve this goal, an experimental setup that considers the actual process boundary conditions in forming tubes made of EN AW-6060 was used to measure in situ normal and frictional forces, in addition to process temperatures, under varying rotational speed and feed rate values.</jats:p>","lang":"eng"}],"status":"public","type":"journal_article","publication":"Journal of Manufacturing and Materials Processing"},{"language":[{"iso":"eng"}],"publication":"Materials Research Proceedings","abstract":[{"lang":"eng","text":"<jats:p>Abstract. This study presents intrinsic lubrication as a novel approach to deep drawing processes, using additively manufactured, lubricant-permeable tools to minimize lubricant consumption and improve efficiency. Two systems were evaluated: a passive system based on capillary action and gravity, and an active system using pumped delivery for precise, on-demand application. Experimental tests were conducted on micro-bores (0.2-0.5 mm) to demonstrate their suitability for lubricant transport. Smaller bores have excellent capillary action but are prone to clogging, while larger bores offer higher permeability. The passive system is resource-efficient but requires adjustments to counteract gravitational asymmetry. The active system provides consistent lubricant distribution but is more complex. These findings provide a basis for optimizing intrinsic lubrication systems.</jats:p>"}],"date_created":"2025-05-14T08:53:41Z","publisher":"Materials Research Forum LLC","title":"Intrinsic lubrication: A new approach in the context of the deep drawing process","quality_controlled":"1","year":"2025","department":[{"_id":"156"},{"_id":"321"}],"user_id":"79551","_id":"59894","type":"conference","status":"public","volume":54,"author":[{"first_name":"Ermir","last_name":"Cakici","id":"79551","full_name":"Cakici, Ermir"},{"full_name":"Homberg, Werner","id":"233","last_name":"Homberg","first_name":"Werner"}],"date_updated":"2026-04-16T08:33:32Z","doi":"10.21741/9781644903599-122","conference":{"start_date":"2025-05-07","name":"The 28th International ESAFORM Conference on Material Forming - ESAFORM 2025","location":"Paestum, Italien","end_date":"2025-05-09"},"main_file_link":[{"url":"https://mrforum.com/product/9781644903599-122/"}],"publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","intvolume":"        54","citation":{"apa":"Cakici, E., &#38; Homberg, W. (2025). Intrinsic lubrication: A new approach in the context of the deep drawing process. <i>Materials Research Proceedings</i>, <i>54</i>. <a href=\"https://doi.org/10.21741/9781644903599-122\">https://doi.org/10.21741/9781644903599-122</a>","bibtex":"@inproceedings{Cakici_Homberg_2025, title={Intrinsic lubrication: A new approach in the context of the deep drawing process}, volume={54}, DOI={<a href=\"https://doi.org/10.21741/9781644903599-122\">10.21741/9781644903599-122</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Cakici, Ermir and Homberg, Werner}, year={2025} }","mla":"Cakici, Ermir, and Werner Homberg. “Intrinsic Lubrication: A New Approach in the Context of the Deep Drawing Process.” <i>Materials Research Proceedings</i>, vol. 54, Materials Research Forum LLC, 2025, doi:<a href=\"https://doi.org/10.21741/9781644903599-122\">10.21741/9781644903599-122</a>.","short":"E. Cakici, W. Homberg, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","ieee":"E. Cakici and W. Homberg, “Intrinsic lubrication: A new approach in the context of the deep drawing process,” in <i>Materials Research Proceedings</i>, Paestum, Italien, 2025, vol. 54, doi: <a href=\"https://doi.org/10.21741/9781644903599-122\">10.21741/9781644903599-122</a>.","chicago":"Cakici, Ermir, and Werner Homberg. “Intrinsic Lubrication: A New Approach in the Context of the Deep Drawing Process.” In <i>Materials Research Proceedings</i>, Vol. 54. Materials Research Forum LLC, 2025. <a href=\"https://doi.org/10.21741/9781644903599-122\">https://doi.org/10.21741/9781644903599-122</a>.","ama":"Cakici E, Homberg W. Intrinsic lubrication: A new approach in the context of the deep drawing process. In: <i>Materials Research Proceedings</i>. Vol 54. Materials Research Forum LLC; 2025. doi:<a href=\"https://doi.org/10.21741/9781644903599-122\">10.21741/9781644903599-122</a>"}},{"publication_identifier":{"issn":["2474-395X"]},"quality_controlled":"1","publication_status":"published","citation":{"chicago":"Dahms, Frederik Simon, and Werner Homberg. “Modular 3D Roller Straightening – A New Approach to Straightening and Forming of Spring Steel Wires (X10CrNi18-8).” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-154\">https://doi.org/10.21741/9781644903131-154</a>.","ieee":"F. S. Dahms and W. Homberg, “Modular 3D roller straightening – A new approach to straightening and forming of spring steel wires (X10CrNi18-8),” presented at the ESAFORM2024, Toulouse, 2024, doi: <a href=\"https://doi.org/10.21741/9781644903131-154\">10.21741/9781644903131-154</a>.","ama":"Dahms FS, Homberg W. Modular 3D roller straightening – A new approach to straightening and forming of spring steel wires (X10CrNi18-8). In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-154\">10.21741/9781644903131-154</a>","bibtex":"@inproceedings{Dahms_Homberg_2024, title={Modular 3D roller straightening – A new approach to straightening and forming of spring steel wires (X10CrNi18-8)}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-154\">10.21741/9781644903131-154</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Dahms, Frederik Simon and Homberg, Werner}, year={2024} }","short":"F.S. Dahms, W. Homberg, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","mla":"Dahms, Frederik Simon, and Werner Homberg. “Modular 3D Roller Straightening – A New Approach to Straightening and Forming of Spring Steel Wires (X10CrNi18-8).” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-154\">10.21741/9781644903131-154</a>.","apa":"Dahms, F. S., &#38; Homberg, W. (2024). Modular 3D roller straightening – A new approach to straightening and forming of spring steel wires (X10CrNi18-8). <i>Materials Research Proceedings</i>. ESAFORM2024, Toulouse. <a href=\"https://doi.org/10.21741/9781644903131-154\">https://doi.org/10.21741/9781644903131-154</a>"},"year":"2024","author":[{"first_name":"Frederik Simon","full_name":"Dahms, Frederik Simon","id":"64977","last_name":"Dahms"},{"first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner","id":"233"}],"date_created":"2024-04-25T08:29:20Z","publisher":"Materials Research Forum LLC","date_updated":"2024-05-27T08:16:18Z","doi":"10.21741/9781644903131-154","conference":{"location":"Toulouse","name":"ESAFORM2024"},"title":"Modular 3D roller straightening – A new approach to straightening and forming of spring steel wires (X10CrNi18-8)","publication":"Materials Research Proceedings","type":"conference","status":"public","abstract":[{"text":"<jats:p>Abstract. Spring steel wires are usually supplied and stored on coils. The manufacturing and coiling processes of these wires induce inhomogeneous plastic deformations that lead to undesirable residual stresses and varying wire curvatures in the semi-finished product. These residual stresses and curvatures defects are causing varying process conditions in the subsequent manufacturing processes, which have a negative impact on the product quality, leading to wastage and thus affecting the economic and ecological efficiency. Especially the curvature deviations must be compensated for the stability of the subsequent processes. This is usually realised with roller straighteners, which are set manually by the machine operators only at the beginning of a process. In this paper, we introduce a new approach with a modular straightening-machine design and a new set-up process. The more isolated deformation behaviour in a module-based straightener overcomes the complexity of interactions between the close-positioned spaced straightening rollers. This is combined with a set-up process that is independent of conventional material testing, modelling the actual and batch-specific behaviour of the wire in the straightening process. The exact knowledge and time-consuming determination of the material properties thus becomes obsolete. The experimental investigations show the influence of defined straightening strategies on the residual stress evolution and the residual forming limit of the spring steel wires (X10CrNi18-8) in the new straightening process. </jats:p>","lang":"eng"}],"department":[{"_id":"156"}],"user_id":"64977","_id":"53638","language":[{"iso":"eng"}]},{"place":"Cham","year":"2024","citation":{"apa":"Rozo Vasquez, J., Kersting, L., Arian, B., Homberg, W., Trächtler, A., &#38; Walther, F. (2024). Soft Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic Steel AISI 304L. In <i>Lecture Notes in Mechanical Engineering</i>. Springer International Publishing. <a href=\"https://doi.org/10.1007/978-3-031-58006-2_10\">https://doi.org/10.1007/978-3-031-58006-2_10</a>","bibtex":"@inbook{Rozo Vasquez_Kersting_Arian_Homberg_Trächtler_Walther_2024, place={Cham}, title={Soft Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic Steel AISI 304L}, DOI={<a href=\"https://doi.org/10.1007/978-3-031-58006-2_10\">10.1007/978-3-031-58006-2_10</a>}, booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer International Publishing}, author={Rozo Vasquez, Julian  and Kersting, Lukas and Arian, Bahman and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2024} }","mla":"Rozo Vasquez, Julian, et al. “Soft Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic Steel AISI 304L.” <i>Lecture Notes in Mechanical Engineering</i>, Springer International Publishing, 2024, doi:<a href=\"https://doi.org/10.1007/978-3-031-58006-2_10\">10.1007/978-3-031-58006-2_10</a>.","short":"J. Rozo Vasquez, L. Kersting, B. Arian, W. Homberg, A. Trächtler, F. Walther, in: Lecture Notes in Mechanical Engineering, Springer International Publishing, Cham, 2024.","ieee":"J. Rozo Vasquez, L. Kersting, B. Arian, W. Homberg, A. Trächtler, and F. Walther, “Soft Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic Steel AISI 304L,” in <i>Lecture Notes in Mechanical Engineering</i>, Cham: Springer International Publishing, 2024.","chicago":"Rozo Vasquez, Julian , Lukas Kersting, Bahman Arian, Werner Homberg, Ansgar Trächtler, and Frank Walther. “Soft Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic Steel AISI 304L.” In <i>Lecture Notes in Mechanical Engineering</i>. Cham: Springer International Publishing, 2024. <a href=\"https://doi.org/10.1007/978-3-031-58006-2_10\">https://doi.org/10.1007/978-3-031-58006-2_10</a>.","ama":"Rozo Vasquez J, Kersting L, Arian B, Homberg W, Trächtler A, Walther F. Soft Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic Steel AISI 304L. In: <i>Lecture Notes in Mechanical Engineering</i>. Springer International Publishing; 2024. doi:<a href=\"https://doi.org/10.1007/978-3-031-58006-2_10\">10.1007/978-3-031-58006-2_10</a>"},"quality_controlled":"1","publication_identifier":{"issn":["2195-4356","2195-4364"],"isbn":["9783031580055","9783031580062"]},"publication_status":"published","title":"Soft Sensor Model of Phase Transformation During Flow Forming of Metastable Austenitic Steel AISI 304L","doi":"10.1007/978-3-031-58006-2_10","publisher":"Springer International Publishing","date_updated":"2024-11-18T10:39:03Z","author":[{"last_name":"Rozo Vasquez","full_name":"Rozo Vasquez, Julian ","first_name":"Julian "},{"first_name":"Lukas","last_name":"Kersting","full_name":"Kersting, Lukas"},{"first_name":"Bahman","last_name":"Arian","id":"36287","full_name":"Arian, Bahman"},{"first_name":"Werner","id":"233","full_name":"Homberg, Werner","last_name":"Homberg"},{"id":"552","full_name":"Trächtler, Ansgar","last_name":"Trächtler","first_name":"Ansgar"},{"full_name":"Walther, Frank","last_name":"Walther","first_name":"Frank"}],"date_created":"2024-11-18T10:24:06Z","abstract":[{"text":"This paper deals with the modeling of a soft sensor for detecting α’-martensite evolution from the micromagnetic signals that are measured during the reverse flow forming of metastable AISI 304L austenitic steel. This model can be prospectively used inside a closed-loop property-controlled flow forming process. To achieve this, optimization by means of a non-linear regression of experimental data was carried out. To collect the experimental data, specimens were produced by flow forming seamless tubes at room temperature. Using a combination of production parameters (like the infeed depth and feed rate), specimens with different α’-martensite contents and wall-thickness reductions were produced. An equation to compute α’-martensite from both specific production-process parameters and micromagnetic Barkhausen noise (MBN) measurements was obtained using numerical methods. In this process, the behavior of the quantity of interest (namely, the α’-martensite content) was mathematically evaluated with respect to non-destructive MBN data and the feed rate that was used to produce the components. A combination of exponential and potential functions was defined as the ansatz functions of the model. The obtained model was validated online and offline during the real flow forming of workpieces, obtaining average deviations of up to 7% α’-martensite with respect to the model. The implementation of the soft sensor model for property-controlled production represents an important milestone for producing high-added-value components on the basis of a well-understood process-microstructure-property relationship.","lang":"eng"}],"status":"public","publication":"Lecture Notes in Mechanical Engineering","type":"book_chapter","language":[{"iso":"eng"}],"_id":"57190","department":[{"_id":"153"},{"_id":"241"},{"_id":"156"}],"user_id":"41470"},{"type":"conference","status":"public","abstract":[{"text":"This paper deals with micromagnetic measurements for online detection of\r\nstrain-induced α’-martensite during plastic deformation of metastable\r\naustenitic steel AISI 304L. The operating principles of the sensors are\r\nBarkhausen noise (MBN) and eddy currents (EC), which are suitable for\r\ndetection of microstructure evolution due to formation of ferromagnetic\r\nphases. Nevertheless, the description of the calibration and\r\ntransformation models of the micromagnetic measurements into\r\nquantitative α’-martensite fractions is beyond the scope of this paper.\r\nThe focus will be put on the qualification of different micromagnetic\r\nmethods as well as of different measurement systems under conditions\r\nsimilar to the real ones during production, which is crucial for\r\nimplementation of a property-controlled flow forming process. The\r\ninvestigation was carried out on tubular specimens produced by flow\r\nforming, which have different content of α’-martensite. To characterize\r\nthe sensitivity of the sensors, different contact conditions between\r\nsensors and workpieces were reproduced. MBN sensors are suitable for\r\ndetecting amount of α’-martensite, but the measurements are affected by\r\nthe surface roughness. This entails that the calibration models for MBN\r\nsensors must take account of these effects. EC sensors show a closer\r\nmatch with the amount of α’-martensite without having major affectation\r\nby other effects.","lang":"eng"}],"user_id":"41470","department":[{"_id":"153"},{"_id":"241"},{"_id":"156"}],"_id":"57189","language":[{"iso":"eng"}],"publication_status":"published","quality_controlled":"1","citation":{"apa":"Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler, A., &#38; Walther, F. (2024). <i>Barkhausen noise- and eddy current-based measurements for online detection of deformation-induced martensite during flow forming of metastable austenitic steel AISI 304L</i>.","bibtex":"@inproceedings{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2024, title={Barkhausen noise- and eddy current-based measurements for online detection of deformation-induced martensite during flow forming of metastable austenitic steel AISI 304L}, publisher={Authorea, Inc.}, author={Rozo Vasquez, Julian  and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2024} }","short":"J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler, F. Walther, in: Authorea, Inc., 2024.","mla":"Rozo Vasquez, Julian, et al. <i>Barkhausen Noise- and Eddy Current-Based Measurements for Online Detection of Deformation-Induced Martensite during Flow Forming of Metastable Austenitic Steel AISI 304L</i>. Authorea, Inc., 2024.","chicago":"Rozo Vasquez, Julian , Hanigah Kanagarajah, Bahman Arian, Lukas Kersting, Werner Homberg, Ansgar Trächtler, and Frank Walther. “Barkhausen Noise- and Eddy Current-Based Measurements for Online Detection of Deformation-Induced Martensite during Flow Forming of Metastable Austenitic Steel AISI 304L.” Authorea, Inc., 2024.","ieee":"J. Rozo Vasquez <i>et al.</i>, “Barkhausen noise- and eddy current-based measurements for online detection of deformation-induced martensite during flow forming of metastable austenitic steel AISI 304L,” 2024.","ama":"Rozo Vasquez J, Kanagarajah H, Arian B, et al. Barkhausen noise- and eddy current-based measurements for online detection of deformation-induced martensite during flow forming of metastable austenitic steel AISI 304L. In: Authorea, Inc.; 2024."},"year":"2024","date_created":"2024-11-18T10:22:34Z","author":[{"first_name":"Julian ","full_name":"Rozo Vasquez, Julian ","last_name":"Rozo Vasquez"},{"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","full_name":"Kersting, Lukas","last_name":"Kersting"},{"first_name":"Werner","id":"233","full_name":"Homberg, Werner","last_name":"Homberg"},{"id":"552","full_name":"Trächtler, Ansgar","last_name":"Trächtler","first_name":"Ansgar"},{"first_name":"Frank","last_name":"Walther","full_name":"Walther, Frank"}],"publisher":"Authorea, Inc.","date_updated":"2024-11-18T10:39:19Z","title":"Barkhausen noise- and eddy current-based measurements for online detection of deformation-induced martensite during flow forming of metastable austenitic steel AISI 304L"},{"title":"α’-martensite grading techniques in reverse flow forming of AISI 304L","doi":"10.21741/9781644903254-76","publisher":"Materials Research Forum LLC","date_updated":"2024-11-18T10:42:55Z","date_created":"2024-11-18T10:06:17Z","author":[{"first_name":"Bahman","full_name":"Arian, Bahman","id":"36287","last_name":"Arian"},{"id":"233","full_name":"Homberg, Werner","last_name":"Homberg","first_name":"Werner"},{"full_name":"Kersting, Lukas","last_name":"Kersting","first_name":"Lukas"},{"last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar","first_name":"Ansgar"},{"first_name":"Julian","last_name":"Rozo Vasquez","full_name":"Rozo Vasquez, Julian"},{"first_name":"Frank","last_name":"Walther","full_name":"Walther, Frank"}],"volume":44,"year":"2024","citation":{"short":"B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","mla":"Arian, Bahman, et al. “α’-Martensite Grading Techniques in Reverse Flow Forming of AISI 304L.” <i>Materials Research Proceedings</i>, vol. 44, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903254-76\">10.21741/9781644903254-76</a>.","bibtex":"@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2024, title={α’-martensite grading techniques in reverse flow forming of AISI 304L}, volume={44}, DOI={<a href=\"https://doi.org/10.21741/9781644903254-76\">10.21741/9781644903254-76</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2024} }","apa":"Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., &#38; Walther, F. (2024). α’-martensite grading techniques in reverse flow forming of AISI 304L. <i>Materials Research Proceedings</i>, <i>44</i>. <a href=\"https://doi.org/10.21741/9781644903254-76\">https://doi.org/10.21741/9781644903254-76</a>","ama":"Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. α’-martensite grading techniques in reverse flow forming of AISI 304L. In: <i>Materials Research Proceedings</i>. Vol 44. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903254-76\">10.21741/9781644903254-76</a>","chicago":"Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian Rozo Vasquez, and Frank Walther. “α’-Martensite Grading Techniques in Reverse Flow Forming of AISI 304L.” In <i>Materials Research Proceedings</i>, Vol. 44. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903254-76\">https://doi.org/10.21741/9781644903254-76</a>.","ieee":"B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F. Walther, “α’-martensite grading techniques in reverse flow forming of AISI 304L,” in <i>Materials Research Proceedings</i>, 2024, vol. 44, doi: <a href=\"https://doi.org/10.21741/9781644903254-76\">10.21741/9781644903254-76</a>."},"intvolume":"        44","publication_status":"published","publication_identifier":{"issn":["2474-395X"]},"quality_controlled":"1","language":[{"iso":"eng"}],"_id":"57173","user_id":"41470","department":[{"_id":"241"},{"_id":"153"},{"_id":"156"}],"abstract":[{"text":"Manufacturing processes benefit from property control enabling reproducibility, application oriented outcomes, and efficient part production. In reverse flow forming, state of the art practices focus primarily on geometry control, neglecting property control. Given the intricacies of the process involving the interaction of tool and machine behavior, process parameters, properties of semi finished products and temperatures, incorporating process control becomes an imperative for producing components with predefined properties. The property controlled within this reverse flow forming process is the local α’ martensite content. Therefore, process strategies to actively influence the α’ martensite content must be implemented. In this study seamless AISI 304L steel tubes are used, where α’ martensite formation is strain  and/or temperature induced through phase transformation within the process. This paper presents innovative process strategies, methods, and specially developed mechanical and thermal actuator systems to locally increase or suppress the α’ martensite content. The use and implementation of these approaches and tools allows the creation of unique optically invisible microstructure profiles containing 3D gradings, implying a radial grading of α’ martensite. The locally implemented α’ martensite, forming these 3D gradings, offers potential applications for functional or sensory purposes. This paper extends beyond theoretical concepts, providing tangible component outcomes.","lang":"eng"}],"status":"public","type":"conference","publication":"Materials Research Proceedings"},{"publication":"Materials Research Proceedings","type":"conference","abstract":[{"lang":"eng","text":"The incremental flow forming process is currently enhanced in research context by special closed-loop property control concepts to increase the productivity and to control the product properties making invisible property structures like a magnetic barcode possible. However, it is preferred to establish property control concepts on single roller machines instead of conventional machines with three roller actuation due to the better machine accessibility. For those single roller machines, rather poor surface qualities of flow formed workpieces were observed in the past especially for hydraulic actuators. Thus, a new actuator closed-loop position control concept is developed in this paper using model-based control design methods and taking the flow forming forces as a load into account. The novel closed-loop control is validated during workpiece production at the actual single roller flow forming machine. An analysis of the manufactured workpieces show that the surface quality is significantly enhanced by the new control to a roughness level almost similar to conventional three roller flow forming. Thus, a sincere added value to the flow forming process is offered by the novel actuator closed-loop position control."}],"status":"public","_id":"57178","department":[{"_id":"153"},{"_id":"241"},{"_id":"156"}],"user_id":"41470","language":[{"iso":"eng"}],"quality_controlled":"1","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","year":"2024","intvolume":"        41","citation":{"ama":"Kersting L, Sander S, Arian B, et al. Improving the flow forming process by a novel closed-loop control. In: <i>Materials Research Proceedings</i>. Vol 41. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-158\">10.21741/9781644903131-158</a>","ieee":"L. Kersting <i>et al.</i>, “Improving the flow forming process by a novel closed-loop control,” in <i>Materials Research Proceedings</i>, 2024, vol. 41, doi: <a href=\"https://doi.org/10.21741/9781644903131-158\">10.21741/9781644903131-158</a>.","chicago":"Kersting, Lukas, Sebastian Sander, Bahman Arian, Julian Rozo Vasquez, Ansgar Trächtler, Werner Homberg, and Frank Walther. “Improving the Flow Forming Process by a Novel Closed-Loop Control.” In <i>Materials Research Proceedings</i>, Vol. 41. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-158\">https://doi.org/10.21741/9781644903131-158</a>.","apa":"Kersting, L., Sander, S., Arian, B., Rozo Vasquez, J., Trächtler, A., Homberg, W., &#38; Walther, F. (2024). Improving the flow forming process by a novel closed-loop control. <i>Materials Research Proceedings</i>, <i>41</i>. <a href=\"https://doi.org/10.21741/9781644903131-158\">https://doi.org/10.21741/9781644903131-158</a>","bibtex":"@inproceedings{Kersting_Sander_Arian_Rozo Vasquez_Trächtler_Homberg_Walther_2024, title={Improving the flow forming process by a novel closed-loop control}, volume={41}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-158\">10.21741/9781644903131-158</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Kersting, Lukas and Sander, Sebastian and Arian, Bahman and Rozo Vasquez, Julian and Trächtler, Ansgar and Homberg, Werner and Walther, Frank}, year={2024} }","mla":"Kersting, Lukas, et al. “Improving the Flow Forming Process by a Novel Closed-Loop Control.” <i>Materials Research Proceedings</i>, vol. 41, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-158\">10.21741/9781644903131-158</a>.","short":"L. Kersting, S. Sander, B. Arian, J. Rozo Vasquez, A. Trächtler, W. Homberg, F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC, 2024."},"date_updated":"2024-11-18T10:41:46Z","publisher":"Materials Research Forum LLC","volume":41,"date_created":"2024-11-18T10:11:24Z","author":[{"full_name":"Kersting, Lukas","last_name":"Kersting","first_name":"Lukas"},{"first_name":"Sebastian","last_name":"Sander","full_name":"Sander, Sebastian"},{"first_name":"Bahman","id":"36287","full_name":"Arian, Bahman","last_name":"Arian"},{"first_name":"Julian","full_name":"Rozo Vasquez, Julian","last_name":"Rozo Vasquez"},{"full_name":"Trächtler, Ansgar","id":"552","last_name":"Trächtler","first_name":"Ansgar"},{"first_name":"Werner","full_name":"Homberg, Werner","id":"233","last_name":"Homberg"},{"first_name":"Frank","full_name":"Walther, Frank","last_name":"Walther"}],"title":"Improving the flow forming process by a novel closed-loop control","doi":"10.21741/9781644903131-158"},{"_id":"57183","department":[{"_id":"153"},{"_id":"241"},{"_id":"156"}],"user_id":"41470","language":[{"iso":"eng"}],"publication":"Materials Research Proceedings","type":"conference","abstract":[{"lang":"eng","text":"In multi-stage bending and straightening operations cross-stage and quantity-dependent effects crucially affect the quality of the end product. Using punch-bending units in combination with a mechatronic straightening device can improve the accuracy and repeatability of product features remarkably well. In this work a concept for an innovative hybrid model of a roll straightener in a multi-stage straightening and multi-stage bending process is proposed. This model combines data-driven elements with expert knowledge and aims to minimise residual errors of the roll straightener to reliably decrease the risk of disadvantageous cross-stage and quantity-dependent effects on a subsequent punch-bending process."}],"status":"public","date_updated":"2024-11-18T10:40:50Z","publisher":"Materials Research Forum LLC","volume":41,"date_created":"2024-11-18T10:15:37Z","author":[{"first_name":"Henning","last_name":"Peters","full_name":"Peters, Henning"},{"last_name":"Djakow","id":"7904","full_name":"Djakow, Eugen","first_name":"Eugen"},{"first_name":"Tim","full_name":"Rostek, Tim","id":"3469","last_name":"Rostek"},{"first_name":"Andreas","last_name":"Mazur","full_name":"Mazur, Andreas"},{"last_name":"Trächtler","full_name":"Trächtler, Ansgar","id":"552","first_name":"Ansgar"},{"last_name":"Homberg","id":"233","full_name":"Homberg, Werner","first_name":"Werner"},{"first_name":"Barbara","last_name":"Hammer","full_name":"Hammer, Barbara"}],"title":"Novel approach for data-driven modelling of multi-stage straightening and bending processes","doi":"10.21741/9781644903131-252","publication_identifier":{"issn":["2474-395X"]},"quality_controlled":"1","publication_status":"published","year":"2024","intvolume":"        41","citation":{"ama":"Peters H, Djakow E, Rostek T, et al. Novel approach for data-driven modelling of multi-stage straightening and bending processes. In: <i>Materials Research Proceedings</i>. Vol 41. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-252\">10.21741/9781644903131-252</a>","ieee":"H. Peters <i>et al.</i>, “Novel approach for data-driven modelling of multi-stage straightening and bending processes,” in <i>Materials Research Proceedings</i>, 2024, vol. 41, doi: <a href=\"https://doi.org/10.21741/9781644903131-252\">10.21741/9781644903131-252</a>.","chicago":"Peters, Henning, Eugen Djakow, Tim Rostek, Andreas Mazur, Ansgar Trächtler, Werner Homberg, and Barbara Hammer. “Novel Approach for Data-Driven Modelling of Multi-Stage Straightening and Bending Processes.” In <i>Materials Research Proceedings</i>, Vol. 41. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-252\">https://doi.org/10.21741/9781644903131-252</a>.","short":"H. Peters, E. Djakow, T. Rostek, A. Mazur, A. Trächtler, W. Homberg, B. Hammer, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","bibtex":"@inproceedings{Peters_Djakow_Rostek_Mazur_Trächtler_Homberg_Hammer_2024, title={Novel approach for data-driven modelling of multi-stage straightening and bending processes}, volume={41}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-252\">10.21741/9781644903131-252</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Peters, Henning and Djakow, Eugen and Rostek, Tim and Mazur, Andreas and Trächtler, Ansgar and Homberg, Werner and Hammer, Barbara}, year={2024} }","mla":"Peters, Henning, et al. “Novel Approach for Data-Driven Modelling of Multi-Stage Straightening and Bending Processes.” <i>Materials Research Proceedings</i>, vol. 41, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-252\">10.21741/9781644903131-252</a>.","apa":"Peters, H., Djakow, E., Rostek, T., Mazur, A., Trächtler, A., Homberg, W., &#38; Hammer, B. (2024). Novel approach for data-driven modelling of multi-stage straightening and bending processes. <i>Materials Research Proceedings</i>, <i>41</i>. <a href=\"https://doi.org/10.21741/9781644903131-252\">https://doi.org/10.21741/9781644903131-252</a>"}},{"language":[{"iso":"eng"}],"_id":"57171","department":[{"_id":"241"},{"_id":"153"},{"_id":"156"}],"user_id":"41470","abstract":[{"text":"In manufacturing, property control ensures efficient part production. However, in reverse flow forming, current practices focus on geometry control rather than property control. To address the complexity of the process and tool machine interaction, process control is crucial for defined component properties. This study focuses on controlling local α’ martensite content in reverse flow forming of seamless AISI 304L steel tubes. Strategies and systems are presented to influence α’ martensite content, creating unique microstructure profiles for 1D  and 2D Gradings, with tangible component outcomes.","lang":"eng"}],"status":"public","publication":"Materials Research Proceedings","type":"conference","title":"Thermomechanical reverse flow forming of AISI 304L","doi":"10.21741/9781644903131-151","date_updated":"2024-11-18T10:42:49Z","publisher":"Materials Research Forum LLC","volume":41,"author":[{"first_name":"Bahman","id":"36287","full_name":"Arian, Bahman","last_name":"Arian"},{"last_name":"Homberg","id":"233","full_name":"Homberg, Werner","first_name":"Werner"},{"first_name":"Lukas","full_name":"Kersting, Lukas","last_name":"Kersting"},{"first_name":"Ansgar","last_name":"Trächtler","full_name":"Trächtler, Ansgar","id":"552"},{"first_name":"Julian","last_name":"Rozo Vasquez","full_name":"Rozo Vasquez, Julian"},{"last_name":"Walther","full_name":"Walther, Frank","first_name":"Frank"}],"date_created":"2024-11-18T10:02:38Z","year":"2024","intvolume":"        41","citation":{"ama":"Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. Thermomechanical reverse flow forming of AISI 304L. In: <i>Materials Research Proceedings</i>. Vol 41. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-151\">10.21741/9781644903131-151</a>","ieee":"B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F. Walther, “Thermomechanical reverse flow forming of AISI 304L,” in <i>Materials Research Proceedings</i>, 2024, vol. 41, doi: <a href=\"https://doi.org/10.21741/9781644903131-151\">10.21741/9781644903131-151</a>.","chicago":"Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian Rozo Vasquez, and Frank Walther. “Thermomechanical Reverse Flow Forming of AISI 304L.” In <i>Materials Research Proceedings</i>, Vol. 41. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-151\">https://doi.org/10.21741/9781644903131-151</a>.","short":"B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","bibtex":"@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2024, title={Thermomechanical reverse flow forming of AISI 304L}, volume={41}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-151\">10.21741/9781644903131-151</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2024} }","mla":"Arian, Bahman, et al. “Thermomechanical Reverse Flow Forming of AISI 304L.” <i>Materials Research Proceedings</i>, vol. 41, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-151\">10.21741/9781644903131-151</a>.","apa":"Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., &#38; Walther, F. (2024). Thermomechanical reverse flow forming of AISI 304L. <i>Materials Research Proceedings</i>, <i>41</i>. <a href=\"https://doi.org/10.21741/9781644903131-151\">https://doi.org/10.21741/9781644903131-151</a>"},"quality_controlled":"1","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published"},{"language":[{"iso":"eng"}],"user_id":"88725","department":[{"_id":"156"}],"project":[{"_id":"133","name":"TRR 285 - Project Area C"},{"_id":"147","name":"TRR 285 - Subproject C03"}],"_id":"54650","status":"public","abstract":[{"text":"<jats:p>Abstract. Reducing the weight of vehicles can significantly lower the energy or fuel consumed and thus the emissions during operation. One possibility to assess this is the use of a property adapted multi-material systems containing high strength steel, light metals like aluminium or magnesium and fibre reinforced plastics. While expanding the number of materials used new challenges arise for the production and furthermore the joining technology to manufacture the vehicle made of the multi-material systems. One approach to overcome these challenges is to use innovative and adaptable joining techniques which allows the manufacturing of joints of different material combinations. Extensive research activities on the two stage thermo-mechanical joining process with adaptable joining elements was able to demonstrate the great potentials in terms of joining dissimilar materials with good strength. The previously kinematic and path-based fabrication of auxiliary joining elements is modified in this publication to a form-based approach with a perspective of establishing an efficient process chain using easily and cheaply available rods. Based on the new approach to produce the auxiliary joining elements, it can be demonstrated that a reproducible production of the geometry is possible for the investigated steel as well as aluminium material. </jats:p>","lang":"eng"}],"type":"conference","publication":"Materials Research Proceedings","conference":{"location":"Toulouse","name":"ESAFORM 2024"},"doi":"10.21741/9781644903131-180","title":"Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation","date_created":"2024-06-07T09:38:45Z","author":[{"first_name":"Thomas","id":"83141","full_name":"Borgert, Thomas","last_name":"Borgert"},{"id":"88725","full_name":"Nordieker, Ansgar Bernhard","last_name":"Nordieker","first_name":"Ansgar Bernhard"},{"first_name":"Werner","id":"233","full_name":"Homberg, Werner","last_name":"Homberg"}],"date_updated":"2025-09-22T05:45:37Z","publisher":"Materials Research Forum LLC","citation":{"apa":"Borgert, T., Nordieker, A. B., &#38; Homberg, W. (2024). Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation. <i>Materials Research Proceedings</i>. ESAFORM 2024, Toulouse. <a href=\"https://doi.org/10.21741/9781644903131-180\">https://doi.org/10.21741/9781644903131-180</a>","bibtex":"@inproceedings{Borgert_Nordieker_Homberg_2024, title={Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation}, DOI={<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Homberg, Werner}, year={2024} }","short":"T. Borgert, A.B. Nordieker, W. Homberg, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.","mla":"Borgert, Thomas, et al. “Form-Based Manufacturing of Aluminium and Steel Auxiliary Joining Elements as the Basis for an Efficient Joining Operation.” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2024, doi:<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>.","ieee":"T. Borgert, A. B. Nordieker, and W. Homberg, “Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation,” presented at the ESAFORM 2024, Toulouse, 2024, doi: <a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>.","chicago":"Borgert, Thomas, Ansgar Bernhard Nordieker, and Werner Homberg. “Form-Based Manufacturing of Aluminium and Steel Auxiliary Joining Elements as the Basis for an Efficient Joining Operation.” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2024. <a href=\"https://doi.org/10.21741/9781644903131-180\">https://doi.org/10.21741/9781644903131-180</a>.","ama":"Borgert T, Nordieker AB, Homberg W. Form-based manufacturing of aluminium and steel auxiliary joining elements as the basis for an efficient joining operation. In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2024. doi:<a href=\"https://doi.org/10.21741/9781644903131-180\">10.21741/9781644903131-180</a>"},"year":"2024","publication_status":"published","publication_identifier":{"issn":["2474-395X"]}},{"project":[{"name":"TRR 285 - Project Area C","_id":"133"},{"_id":"147","name":"TRR 285 - Subproject C03"}],"_id":"54649","user_id":"88725","department":[{"_id":"156"}],"article_number":"100185","language":[{"iso":"eng"}],"type":"journal_article","publication":"Journal of Advanced Joining Processes","status":"public","date_updated":"2025-09-22T05:44:28Z","publisher":"Elsevier BV","date_created":"2024-06-07T09:31:59Z","author":[{"first_name":"Thomas","id":"83141","full_name":"Borgert, Thomas","last_name":"Borgert"},{"first_name":"Ansgar Bernhard","last_name":"Nordieker","id":"88725","full_name":"Nordieker, Ansgar Bernhard"},{"first_name":"Eugen","full_name":"Wiens, Eugen","id":"7888","last_name":"Wiens"},{"first_name":"Werner","last_name":"Homberg","id":"233","full_name":"Homberg, Werner"}],"volume":9,"title":"Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements","doi":"10.1016/j.jajp.2024.100185","publication_status":"published","publication_identifier":{"issn":["2666-3309"]},"year":"2024","citation":{"apa":"Borgert, T., Nordieker, A. B., Wiens, E., &#38; Homberg, W. (2024). Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements. <i>Journal of Advanced Joining Processes</i>, <i>9</i>, Article 100185. <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">https://doi.org/10.1016/j.jajp.2024.100185</a>","mla":"Borgert, Thomas, et al. “Investigations to Improve the Tool Life during Thermomechanical and Incremental Forming of Steel Auxiliary Joining Elements.” <i>Journal of Advanced Joining Processes</i>, vol. 9, 100185, Elsevier BV, 2024, doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>.","bibtex":"@article{Borgert_Nordieker_Wiens_Homberg_2024, title={Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements}, volume={9}, DOI={<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>}, number={100185}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier BV}, author={Borgert, Thomas and Nordieker, Ansgar Bernhard and Wiens, Eugen and Homberg, Werner}, year={2024} }","short":"T. Borgert, A.B. Nordieker, E. Wiens, W. Homberg, Journal of Advanced Joining Processes 9 (2024).","chicago":"Borgert, Thomas, Ansgar Bernhard Nordieker, Eugen Wiens, and Werner Homberg. “Investigations to Improve the Tool Life during Thermomechanical and Incremental Forming of Steel Auxiliary Joining Elements.” <i>Journal of Advanced Joining Processes</i> 9 (2024). <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">https://doi.org/10.1016/j.jajp.2024.100185</a>.","ieee":"T. Borgert, A. B. Nordieker, E. Wiens, and W. Homberg, “Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements,” <i>Journal of Advanced Joining Processes</i>, vol. 9, Art. no. 100185, 2024, doi: <a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>.","ama":"Borgert T, Nordieker AB, Wiens E, Homberg W. Investigations to improve the tool life during thermomechanical and incremental forming of steel auxiliary joining elements. <i>Journal of Advanced Joining Processes</i>. 2024;9. doi:<a href=\"https://doi.org/10.1016/j.jajp.2024.100185\">10.1016/j.jajp.2024.100185</a>"},"intvolume":"         9"},{"intvolume":"         7","citation":{"short":"J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler, F. Walther, Engineering Reports 7 (2024).","mla":"Rozo Vasquez, Julian, et al. “Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/Scp&#62;.” <i>Engineering Reports</i>, vol. 7, no. 1, e13070, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>.","bibtex":"@article{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2024, title={Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;}, volume={7}, DOI={<a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>}, number={1e13070}, journal={Engineering Reports}, publisher={Wiley}, author={Rozo Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2024} }","apa":"Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler, A., &#38; Walther, F. (2024). Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;. <i>Engineering Reports</i>, <i>7</i>(1), Article e13070. <a href=\"https://doi.org/10.1002/eng2.13070\">https://doi.org/10.1002/eng2.13070</a>","ama":"Rozo Vasquez J, Kanagarajah H, Arian B, et al. Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;. <i>Engineering Reports</i>. 2024;7(1). doi:<a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>","chicago":"Rozo Vasquez, Julian, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting, Werner Homberg, Ansgar Trächtler, and Frank Walther. “Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/Scp&#62;.” <i>Engineering Reports</i> 7, no. 1 (2024). <a href=\"https://doi.org/10.1002/eng2.13070\">https://doi.org/10.1002/eng2.13070</a>.","ieee":"J. Rozo Vasquez <i>et al.</i>, “Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;,” <i>Engineering Reports</i>, vol. 7, no. 1, Art. no. e13070, 2024, doi: <a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>."},"publication_identifier":{"issn":["2577-8196","2577-8196"]},"publication_status":"published","doi":"10.1002/eng2.13070","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1002/eng2.13070"}],"date_updated":"2025-10-30T12:54:40Z","oa":"1","volume":7,"author":[{"full_name":"Rozo Vasquez, Julian","last_name":"Rozo Vasquez","first_name":"Julian"},{"last_name":"Kanagarajah","full_name":"Kanagarajah, Hanigah","first_name":"Hanigah"},{"last_name":"Arian","full_name":"Arian, Bahman","id":"36287","first_name":"Bahman"},{"first_name":"Lukas","full_name":"Kersting, Lukas","last_name":"Kersting"},{"first_name":"Werner","full_name":"Homberg, Werner","id":"233","last_name":"Homberg"},{"last_name":"Trächtler","full_name":"Trächtler, Ansgar","id":"552","first_name":"Ansgar"},{"last_name":"Walther","full_name":"Walther, Frank","first_name":"Frank"}],"status":"public","type":"journal_article","article_number":"e13070","_id":"62025","department":[{"_id":"153"},{"_id":"241"},{"_id":"156"}],"user_id":"82875","year":"2024","issue":"1","title":"Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel <scp>AISI 304L</scp>","publisher":"Wiley","date_created":"2025-10-30T12:25:57Z","abstract":[{"lang":"eng","text":"<jats:title>ABSTRACT</jats:title><jats:p>This paper deals with micromagnetic measurements for online detection of strain‐induced α′‐martensite during plastic deformation of metastable austenitic steel AISI 304L. The operating principles of the sensors are magnetic Barkhausen noise (MBN) and eddy currents (EC), which are suitable for detection of microstructure evolution due to formation of ferromagnetic phases. The focus of this study was put on the qualification of different micromagnetic techniques and different measurement systems under conditions similar to the real ones during production, which is crucial for implementation of a property‐controlled flow forming process. The investigation was carried out on tubular specimens produced by flow forming, which have different content of α′‐martensite. To characterize the sensitivity of the sensors, different contact conditions between sensors and workpieces were reproduced. MBN sensors are suitable for detecting amount of α′‐martensite, but the measurements are affected by the surface roughness. This entails that the calibration models for MBN sensors must take account of these effects. EC sensors show a closer match with the amount of α′‐martensite without having major affectation by other effects.</jats:p>"}],"publication":"Engineering Reports","language":[{"iso":"eng"}]},{"abstract":[{"lang":"eng","text":"<jats:title>ABSTRACT</jats:title><jats:p>This paper deals with micromagnetic measurements for online detection of strain‐induced α′‐martensite during plastic deformation of metastable austenitic steel AISI 304L. The operating principles of the sensors are magnetic Barkhausen noise (MBN) and eddy currents (EC), which are suitable for detection of microstructure evolution due to formation of ferromagnetic phases. The focus of this study was put on the qualification of different micromagnetic techniques and different measurement systems under conditions similar to the real ones during production, which is crucial for implementation of a property‐controlled flow forming process. The investigation was carried out on tubular specimens produced by flow forming, which have different content of α′‐martensite. To characterize the sensitivity of the sensors, different contact conditions between sensors and workpieces were reproduced. MBN sensors are suitable for detecting amount of α′‐martensite, but the measurements are affected by the surface roughness. This entails that the calibration models for MBN sensors must take account of these effects. EC sensors show a closer match with the amount of α′‐martensite without having major affectation by other effects.</jats:p>"}],"publication":"Engineering Reports","language":[{"iso":"eng"}],"year":"2024","issue":"1","title":"Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel <scp>AISI 304L</scp>","publisher":"Wiley","date_created":"2025-11-03T10:28:12Z","status":"public","type":"journal_article","article_number":"e13070","_id":"62053","user_id":"82875","department":[{"_id":"153"},{"_id":"241"},{"_id":"156"}],"citation":{"ama":"Rozo Vasquez J, Kanagarajah H, Arian B, et al. Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;. <i>Engineering Reports</i>. 2024;7(1). doi:<a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>","ieee":"J. Rozo Vasquez <i>et al.</i>, “Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;,” <i>Engineering Reports</i>, vol. 7, no. 1, Art. no. e13070, 2024, doi: <a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>.","chicago":"Rozo Vasquez, Julian, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting, Werner Homberg, Ansgar Trächtler, and Frank Walther. “Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/Scp&#62;.” <i>Engineering Reports</i> 7, no. 1 (2024). <a href=\"https://doi.org/10.1002/eng2.13070\">https://doi.org/10.1002/eng2.13070</a>.","apa":"Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler, A., &#38; Walther, F. (2024). Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;. <i>Engineering Reports</i>, <i>7</i>(1), Article e13070. <a href=\"https://doi.org/10.1002/eng2.13070\">https://doi.org/10.1002/eng2.13070</a>","bibtex":"@article{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2024, title={Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/scp&#62;}, volume={7}, DOI={<a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>}, number={1e13070}, journal={Engineering Reports}, publisher={Wiley}, author={Rozo Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting, Lukas and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2024} }","short":"J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler, F. Walther, Engineering Reports 7 (2024).","mla":"Rozo Vasquez, Julian, et al. “Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel &#60;scp&#62;AISI 304L&#60;/Scp&#62;.” <i>Engineering Reports</i>, vol. 7, no. 1, e13070, Wiley, 2024, doi:<a href=\"https://doi.org/10.1002/eng2.13070\">10.1002/eng2.13070</a>."},"intvolume":"         7","publication_status":"published","publication_identifier":{"issn":["2577-8196","2577-8196"]},"main_file_link":[{"url":"https://doi.org/10.1002/eng2.13070","open_access":"1"}],"doi":"10.1002/eng2.13070","date_updated":"2025-11-03T10:29:18Z","oa":"1","author":[{"first_name":"Julian","last_name":"Rozo Vasquez","full_name":"Rozo Vasquez, Julian"},{"full_name":"Kanagarajah, Hanigah","last_name":"Kanagarajah","first_name":"Hanigah"},{"first_name":"Bahman","id":"36287","full_name":"Arian, Bahman","last_name":"Arian"},{"first_name":"Lukas","last_name":"Kersting","full_name":"Kersting, Lukas"},{"first_name":"Werner","id":"233","full_name":"Homberg, Werner","last_name":"Homberg"},{"last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar","first_name":"Ansgar"},{"full_name":"Walther, Frank","last_name":"Walther","first_name":"Frank"}],"volume":7},{"doi":"10.1177/14644207241232233","date_updated":"2025-12-22T10:40:28Z","volume":238,"author":[{"id":"83141","full_name":"Borgert, Thomas","last_name":"Borgert","first_name":"Thomas"},{"first_name":"D","last_name":"Köhler","full_name":"Köhler, D"},{"id":"7888","full_name":"Wiens, Eugen","last_name":"Wiens","first_name":"Eugen"},{"full_name":"Kupfer, R","last_name":"Kupfer","first_name":"R"},{"first_name":"J","last_name":"Troschitz","full_name":"Troschitz, J"},{"last_name":"Homberg","id":"233","full_name":"Homberg, Werner","first_name":"Werner"},{"full_name":"Gude, M","last_name":"Gude","first_name":"M"}],"intvolume":"       238","page":"2299-2306","citation":{"chicago":"Borgert, Thomas, D Köhler, Eugen Wiens, R Kupfer, J Troschitz, Werner Homberg, and M Gude. “In-Situ Computed Tomography Analysis of the Failure Mechanisms of Thermomechanically Manufactured Joints with Auxiliary Joining Element.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i> 238, no. 12 (2024): 2299–2306. <a href=\"https://doi.org/10.1177/14644207241232233\">https://doi.org/10.1177/14644207241232233</a>.","ieee":"T. Borgert <i>et al.</i>, “In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element,” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, vol. 238, no. 12, pp. 2299–2306, 2024, doi: <a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>.","ama":"Borgert T, Köhler D, Wiens E, et al. In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>. 2024;238(12):2299-2306. doi:<a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>","apa":"Borgert, T., Köhler, D., Wiens, E., Kupfer, R., Troschitz, J., Homberg, W., &#38; Gude, M. (2024). In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element. <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, <i>238</i>(12), 2299–2306. <a href=\"https://doi.org/10.1177/14644207241232233\">https://doi.org/10.1177/14644207241232233</a>","mla":"Borgert, Thomas, et al. “In-Situ Computed Tomography Analysis of the Failure Mechanisms of Thermomechanically Manufactured Joints with Auxiliary Joining Element.” <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>, vol. 238, no. 12, SAGE Publications, 2024, pp. 2299–306, doi:<a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>.","short":"T. Borgert, D. Köhler, E. Wiens, R. Kupfer, J. Troschitz, W. Homberg, M. Gude, Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 238 (2024) 2299–2306.","bibtex":"@article{Borgert_Köhler_Wiens_Kupfer_Troschitz_Homberg_Gude_2024, title={In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element}, volume={238}, DOI={<a href=\"https://doi.org/10.1177/14644207241232233\">10.1177/14644207241232233</a>}, number={12}, journal={Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications}, publisher={SAGE Publications}, author={Borgert, Thomas and Köhler, D and Wiens, Eugen and Kupfer, R and Troschitz, J and Homberg, Werner and Gude, M}, year={2024}, pages={2299–2306} }"},"publication_identifier":{"issn":["1464-4207","2041-3076"]},"publication_status":"published","_id":"63346","department":[{"_id":"156"}],"user_id":"7888","status":"public","type":"journal_article","title":"In-situ computed tomography analysis of the failure mechanisms of thermomechanically manufactured joints with auxiliary joining element","publisher":"SAGE Publications","date_created":"2025-12-19T09:13:30Z","year":"2024","quality_controlled":"1","issue":"12","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p> Lightweight design by using low-density and load-adapted materials can reduce the weight of vehicles and the emissions generated during operation. However, the usage of different materials requires innovative joining technologies with increased versatility. In this investigation, the focus is on describing and characterising the failure behaviour of connections manufactured by an innovative thermomechanical joining process with adaptable auxiliary joining elements in single-lap tensile-shear tests. In order to analyse the failure development in detail, the specimens are investigated using in-situ computed tomography (in-situ CT). Here, the tensile-shear test is interrupted at points of interest and CT scans are conducted under load. In addition, the interrupted in-situ testing procedure is validated by comparing the loading behaviour with conventional continuous tensile-shear tests. The results of the in-situ investigations of joints with varying material combinations clearly describe the cause of failure, allowing conclusions towards an improved joint design. </jats:p>","lang":"eng"}],"publication":"Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications"},{"quality_controlled":"1","type":"conference","year":"2023","citation":{"short":"J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, A. Trächtler, in: 2023.","mla":"Rozo Vasquez, Julian, et al. <i>Softsensor Model of Phase Transformation during Flow Forming of Metastable Austenitic Steel AISI 304L</i>. 2023.","bibtex":"@inproceedings{Rozo Vasquez_Arian_Kersting_Walther_Homberg_Trächtler_2023, title={Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L}, author={Rozo Vasquez, Julian and Arian, Bahman and Kersting, Lukas and Walther, Frank and Homberg, Werner and Trächtler, Ansgar}, year={2023} }","apa":"Rozo Vasquez, J., Arian, B., Kersting, L., Walther, F., Homberg, W., &#38; Trächtler, A. (2023). <i>Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L</i>. The 14th International Conference on Numerical Methods in Industrial Forming Processes (Numiform 2023), Krakau.","ama":"Rozo Vasquez J, Arian B, Kersting L, Walther F, Homberg W, Trächtler A. Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L. In: ; 2023.","ieee":"J. Rozo Vasquez, B. Arian, L. Kersting, F. Walther, W. Homberg, and A. Trächtler, “Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L,” presented at the The 14th International Conference on Numerical Methods in Industrial Forming Processes (Numiform 2023), Krakau, 2023.","chicago":"Rozo Vasquez, Julian, Bahman Arian, Lukas Kersting, Frank Walther, Werner Homberg, and Ansgar Trächtler. “Softsensor Model of Phase Transformation during Flow Forming of Metastable Austenitic Steel AISI 304L,” 2023."},"status":"public","date_updated":"2023-11-07T00:01:46Z","_id":"44316","user_id":"14931","author":[{"last_name":"Rozo Vasquez","full_name":"Rozo Vasquez, Julian","first_name":"Julian"},{"first_name":"Bahman","last_name":"Arian","id":"36287","full_name":"Arian, Bahman"},{"last_name":"Kersting","full_name":"Kersting, Lukas","first_name":"Lukas"},{"first_name":"Frank","full_name":"Walther, Frank","last_name":"Walther"},{"id":"233","full_name":"Homberg, Werner","last_name":"Homberg","first_name":"Werner"},{"last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar","first_name":"Ansgar"}],"date_created":"2023-05-02T09:56:46Z","department":[{"_id":"156"},{"_id":"241"},{"_id":"153"}],"title":"Softsensor model of phase transformation during flow forming of metastable austenitic steel AISI 304L","conference":{"end_date":"2023-06-29","location":"Krakau","name":"The 14th International Conference on Numerical Methods in Industrial Forming Processes (Numiform 2023)","start_date":"2023-06-25"},"language":[{"iso":"eng"}]},{"citation":{"short":"L. Bathelt, E. Djakow, F. Dahms, C. Henke, A. Trächtler, W. Homberg, in: Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion, Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen, ISLE Steuerungstechnik und Leistungselektronik, Ilmenau, Germany, 2023.","mla":"Bathelt, Lukas, et al. “Neuartiger Ansatz Zum Richten von Zwei- Und Dreidimensionalen Fehlern an Einem Federdraht.” <i>Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion, Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen</i>, ISLE Steuerungstechnik und Leistungselektronik, 2023.","bibtex":"@inproceedings{Bathelt_Djakow_Dahms_Henke_Trächtler_Homberg_2023, place={Ilmenau, Germany}, title={Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem Federdraht}, booktitle={Ilmenauer Federntag 2023: Neueste Erkenntnisse zu Funktion, Berechnung, Prüfung und Gestaltung von Federn und Werkstoffen}, publisher={ISLE Steuerungstechnik und Leistungselektronik}, author={Bathelt, Lukas and Djakow, Eugen and Dahms, Frederik and Henke, Christian and Trächtler, Ansgar and Homberg, Werner}, year={2023} }","apa":"Bathelt, L., Djakow, E., Dahms, F., Henke, C., Trächtler, A., &#38; Homberg, W. (2023). Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem Federdraht. <i>Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion, Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen</i>. Ilmenauer Federntag 2023, Ilmenau.","ieee":"L. Bathelt, E. Djakow, F. Dahms, C. Henke, A. Trächtler, and W. Homberg, “Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem Federdraht,” presented at the Ilmenauer Federntag 2023, Ilmenau, 2023.","chicago":"Bathelt, Lukas, Eugen Djakow, Frederik Dahms, Christian Henke, Ansgar Trächtler, and Werner Homberg. “Neuartiger Ansatz Zum Richten von Zwei- Und Dreidimensionalen Fehlern an Einem Federdraht.” In <i>Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion, Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen</i>. Ilmenau, Germany: ISLE Steuerungstechnik und Leistungselektronik, 2023.","ama":"Bathelt L, Djakow E, Dahms F, Henke C, Trächtler A, Homberg W. Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem Federdraht. In: <i>Ilmenauer Federntag 2023: Neueste Erkenntnisse Zu Funktion, Berechnung, Prüfung Und Gestaltung von Federn Und Werkstoffen</i>. ISLE Steuerungstechnik und Leistungselektronik; 2023."},"year":"2023","place":"Ilmenau, Germany","publication_identifier":{"isbn":["978-3-948595-09-8"]},"quality_controlled":"1","conference":{"start_date":"2023-09-18","name":"Ilmenauer Federntag 2023","location":"Ilmenau","end_date":"2023-09-19"},"title":"Neuartiger Ansatz zum Richten von zwei- und dreidimensionalen Fehlern an einem Federdraht","date_created":"2023-10-11T11:45:56Z","author":[{"first_name":"Lukas","full_name":"Bathelt, Lukas","last_name":"Bathelt"},{"full_name":"Djakow, Eugen","id":"7904","last_name":"Djakow","first_name":"Eugen"},{"first_name":"Frederik","full_name":"Dahms, Frederik","id":"64977","last_name":"Dahms"},{"first_name":"Christian","last_name":"Henke","full_name":"Henke, Christian"},{"first_name":"Ansgar","full_name":"Trächtler, Ansgar","id":"552","last_name":"Trächtler"},{"first_name":"Werner","last_name":"Homberg","id":"233","full_name":"Homberg, Werner"}],"date_updated":"2023-10-31T14:56:44Z","publisher":"ISLE Steuerungstechnik und Leistungselektronik","status":"public","publication":"Ilmenauer Federntag 2023: Neueste Erkenntnisse zu Funktion, Berechnung, Prüfung und Gestaltung von Federn und Werkstoffen","type":"conference","language":[{"iso":"eng"}],"department":[{"_id":"156"},{"_id":"153"},{"_id":"241"}],"user_id":"14931","_id":"48001"},{"doi":"10.21741/9781644902479-219","main_file_link":[{"url":"https://www.mrforum.com/product/9781644902479-219/","open_access":"1"}],"title":"Cryogenic reverse flow forming of AISI 304L","date_created":"2023-05-02T09:43:25Z","author":[{"first_name":"Bahman","id":"36287","full_name":"Arian, Bahman","last_name":"Arian"},{"first_name":"Werner","last_name":"Homberg","full_name":"Homberg, Werner","id":"233"},{"last_name":"Kersting","full_name":"Kersting, Lukas","first_name":"Lukas"},{"last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar","first_name":"Ansgar"},{"first_name":"Julian","full_name":"Rozo Vasquez, Julian","last_name":"Rozo Vasquez"},{"first_name":"Frank","last_name":"Walther","full_name":"Walther, Frank"}],"publisher":"Materials Research Forum LLC","oa":"1","date_updated":"2023-12-15T09:32:05Z","citation":{"ama":"Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. Cryogenic reverse flow forming of AISI 304L. In: <i>Materials Research Proceedings</i>. Materials Research Forum LLC; 2023. doi:<a href=\"https://doi.org/10.21741/9781644902479-219\">10.21741/9781644902479-219</a>","ieee":"B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F. Walther, “Cryogenic reverse flow forming of AISI 304L,” 2023, doi: <a href=\"https://doi.org/10.21741/9781644902479-219\">10.21741/9781644902479-219</a>.","chicago":"Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian Rozo Vasquez, and Frank Walther. “Cryogenic Reverse Flow Forming of AISI 304L.” In <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2023. <a href=\"https://doi.org/10.21741/9781644902479-219\">https://doi.org/10.21741/9781644902479-219</a>.","apa":"Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., &#38; Walther, F. (2023). Cryogenic reverse flow forming of AISI 304L. <i>Materials Research Proceedings</i>. <a href=\"https://doi.org/10.21741/9781644902479-219\">https://doi.org/10.21741/9781644902479-219</a>","mla":"Arian, Bahman, et al. “Cryogenic Reverse Flow Forming of AISI 304L.” <i>Materials Research Proceedings</i>, Materials Research Forum LLC, 2023, doi:<a href=\"https://doi.org/10.21741/9781644902479-219\">10.21741/9781644902479-219</a>.","short":"B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC, 2023.","bibtex":"@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2023, title={Cryogenic reverse flow forming of AISI 304L}, DOI={<a href=\"https://doi.org/10.21741/9781644902479-219\">10.21741/9781644902479-219</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2023} }"},"year":"2023","publication_identifier":{"issn":["2474-395X"]},"quality_controlled":"1","publication_status":"published","language":[{"iso":"eng"}],"department":[{"_id":"156"},{"_id":"241"},{"_id":"153"}],"user_id":"36287","_id":"44314","status":"public","abstract":[{"lang":"eng","text":"<jats:p>Abstract. Workpiece property-control permits the application-oriented and time-efficient production of components. In reverse flow forming, for example, a control of the microstructure profile is not yet part of the state of the art, in contrast to the geometry control. This is, due to several reasons, particularly challenging when forming seamless tubes made of metastable austenitic stainless AISI 304L steel. Inducing mechanical and/or thermal energy can cause a phase transformation from austenite to martensite within this steel. The resulting α’-martensite has different mechanical and micromagnetic properties, which can be advantageous depending on the application. For purposes of local property control, the resulting α’-martensite content should be measured and controlled online during the forming process. This paper presents results from the usage of a custom developed cryo-system and different application strategies to use liquid nitrogen as a coolant for local enhancement of the forming-temperature depending α’-martensite content. </jats:p>"}],"publication":"Materials Research Proceedings","type":"conference"},{"citation":{"apa":"Homberg, W., Arian, B., Arne, V., Borgert, T., Brosius, A., Groche, P., Hartmann, C., Kersting, L., Laue, R., Martschin, J., Meurer, T., Spies, D., Tekkaya, A. E., Trächtler, A., Volk, W., Wendler, F., &#38; Wrobel, M. (2023). Softsensors: key component of property control in forming technology. <i>Production Engineering</i>. <a href=\"https://doi.org/10.1007/s11740-023-01227-1\">https://doi.org/10.1007/s11740-023-01227-1</a>","bibtex":"@article{Homberg_Arian_Arne_Borgert_Brosius_Groche_Hartmann_Kersting_Laue_Martschin_et al._2023, title={Softsensors: key component of property control in forming technology}, DOI={<a href=\"https://doi.org/10.1007/s11740-023-01227-1\">10.1007/s11740-023-01227-1</a>}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Homberg, Werner and Arian, Bahman and Arne, Viktor and Borgert, Thomas and Brosius, Alexander and Groche, Peter and Hartmann, Christoph and Kersting, Lukas and Laue, Robert and Martschin, Juri and et al.}, year={2023} }","short":"W. Homberg, B. Arian, V. Arne, T. Borgert, A. Brosius, P. Groche, C. Hartmann, L. Kersting, R. Laue, J. Martschin, T. Meurer, D. Spies, A.E. Tekkaya, A. Trächtler, W. Volk, F. Wendler, M. Wrobel, Production Engineering (2023).","mla":"Homberg, Werner, et al. “Softsensors: Key Component of Property Control in Forming Technology.” <i>Production Engineering</i>, Springer Science and Business Media LLC, 2023, doi:<a href=\"https://doi.org/10.1007/s11740-023-01227-1\">10.1007/s11740-023-01227-1</a>.","ama":"Homberg W, Arian B, Arne V, et al. Softsensors: key component of property control in forming technology. <i>Production Engineering</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1007/s11740-023-01227-1\">10.1007/s11740-023-01227-1</a>","ieee":"W. Homberg <i>et al.</i>, “Softsensors: key component of property control in forming technology,” <i>Production Engineering</i>, 2023, doi: <a href=\"https://doi.org/10.1007/s11740-023-01227-1\">10.1007/s11740-023-01227-1</a>.","chicago":"Homberg, Werner, Bahman Arian, Viktor Arne, Thomas Borgert, Alexander Brosius, Peter Groche, Christoph Hartmann, et al. “Softsensors: Key Component of Property Control in Forming Technology.” <i>Production Engineering</i>, 2023. <a href=\"https://doi.org/10.1007/s11740-023-01227-1\">https://doi.org/10.1007/s11740-023-01227-1</a>."},"publication_identifier":{"issn":["0944-6524","1863-7353"]},"publication_status":"published","doi":"10.1007/s11740-023-01227-1","main_file_link":[{"url":"https://link.springer.com/article/10.1007/s11740-023-01227-1","open_access":"1"}],"date_updated":"2023-12-22T10:56:58Z","oa":"1","author":[{"last_name":"Homberg","full_name":"Homberg, Werner","id":"233","first_name":"Werner"},{"first_name":"Bahman","id":"36287","full_name":"Arian, Bahman","last_name":"Arian"},{"first_name":"Viktor","full_name":"Arne, Viktor","last_name":"Arne"},{"id":"83141","full_name":"Borgert, Thomas","last_name":"Borgert","first_name":"Thomas"},{"first_name":"Alexander","full_name":"Brosius, Alexander","last_name":"Brosius"},{"first_name":"Peter","full_name":"Groche, Peter","last_name":"Groche"},{"full_name":"Hartmann, Christoph","last_name":"Hartmann","first_name":"Christoph"},{"first_name":"Lukas","full_name":"Kersting, Lukas","last_name":"Kersting"},{"full_name":"Laue, Robert","last_name":"Laue","first_name":"Robert"},{"first_name":"Juri","last_name":"Martschin","full_name":"Martschin, Juri"},{"full_name":"Meurer, Thomas","last_name":"Meurer","first_name":"Thomas"},{"first_name":"Daniel","last_name":"Spies","full_name":"Spies, Daniel"},{"full_name":"Tekkaya, A. Erman","last_name":"Tekkaya","first_name":"A. Erman"},{"first_name":"Ansgar","last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar"},{"full_name":"Volk, Wolfram","last_name":"Volk","first_name":"Wolfram"},{"first_name":"Frank","full_name":"Wendler, Frank","last_name":"Wendler"},{"full_name":"Wrobel, Malte","last_name":"Wrobel","first_name":"Malte"}],"status":"public","type":"journal_article","article_type":"original","_id":"48075","department":[{"_id":"156"},{"_id":"153"},{"_id":"241"}],"user_id":"14931","year":"2023","quality_controlled":"1","title":"Softsensors: key component of property control in forming technology","publisher":"Springer Science and Business Media LLC","date_created":"2023-10-16T07:17:17Z","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>The constantly increasing challenges of production technology for the economic and resource-saving production of metallic workpieces require, among other things, the optimisation of existing processes. Forming technology, which is confronted with new challenges regarding the quality of the workpieces, must also organise the individual processes more efficiently and at the same time more reliably in order to be able to guarantee good workpiece quality and at the same time to be able to produce economically. One way to meet these challenges is to carry out the forming processes in closed-loop control systems using softsensors. Despite the many potential applications of softsensors in the field of forming technology, there is still no definition of the term softsensor. This publication therefore proposes a definition of the softsensor based on the definition of a sensor and the distinction from the observer, which on the one hand is intended to stimulate scientific discourse and on the other hand is also intended to form the basis for further scientific work. Based on this definition, a wide variety of highly topical application examples of various softsensors in the field of forming technology are given.</jats:p>"}],"publication":"Production Engineering","keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering"],"language":[{"iso":"eng"}]},{"type":"conference","status":"public","department":[{"_id":"156"},{"_id":"158"}],"user_id":"32340","_id":"43031","project":[{"_id":"147","name":"TRR 285 – C03: TRR 285 - Subproject C03"},{"name":"TRR 285 – A02: TRR 285 - Subproject A02","_id":"136"}],"publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","intvolume":"        25","page":"187-194","citation":{"ieee":"T. Borgert, M. Neuser, E. Wiens, O. Grydin, W. Homberg, and M. Schaper, “Influence of thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium cast alloy,” in <i>Materials Research Proceedings</i>, Nürnberg, 2023, vol. 25, pp. 187–194, doi: <a href=\"https://doi.org/10.21741/9781644902417-24\">10.21741/9781644902417-24</a>.","chicago":"Borgert, Thomas, Moritz Neuser, Eugen Wiens, Olexandr Grydin, Werner Homberg, and Mirko Schaper. “Influence of Thermo-Mechanical Joining Process on the Microstructure of a Hypoeutectic Aluminium Cast Alloy.” In <i>Materials Research Proceedings</i>, 25:187–94. Materials Research Forum LLC, 2023. <a href=\"https://doi.org/10.21741/9781644902417-24\">https://doi.org/10.21741/9781644902417-24</a>.","ama":"Borgert T, Neuser M, Wiens E, Grydin O, Homberg W, Schaper M. Influence of thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium cast alloy. In: <i>Materials Research Proceedings</i>. Vol 25. Materials Research Forum LLC; 2023:187-194. doi:<a href=\"https://doi.org/10.21741/9781644902417-24\">10.21741/9781644902417-24</a>","apa":"Borgert, T., Neuser, M., Wiens, E., Grydin, O., Homberg, W., &#38; Schaper, M. (2023). Influence of thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium cast alloy. <i>Materials Research Proceedings</i>, <i>25</i>, 187–194. <a href=\"https://doi.org/10.21741/9781644902417-24\">https://doi.org/10.21741/9781644902417-24</a>","bibtex":"@inproceedings{Borgert_Neuser_Wiens_Grydin_Homberg_Schaper_2023, title={Influence of thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium cast alloy}, volume={25}, DOI={<a href=\"https://doi.org/10.21741/9781644902417-24\">10.21741/9781644902417-24</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Borgert, Thomas and Neuser, Moritz and Wiens, Eugen and Grydin, Olexandr and Homberg, Werner and Schaper, Mirko}, year={2023}, pages={187–194} }","short":"T. Borgert, M. Neuser, E. Wiens, O. Grydin, W. Homberg, M. Schaper, in: Materials Research Proceedings, Materials Research Forum LLC, 2023, pp. 187–194.","mla":"Borgert, Thomas, et al. “Influence of Thermo-Mechanical Joining Process on the Microstructure of a Hypoeutectic Aluminium Cast Alloy.” <i>Materials Research Proceedings</i>, vol. 25, Materials Research Forum LLC, 2023, pp. 187–94, doi:<a href=\"https://doi.org/10.21741/9781644902417-24\">10.21741/9781644902417-24</a>."},"volume":25,"author":[{"last_name":"Borgert","id":"83141","full_name":"Borgert, Thomas","first_name":"Thomas"},{"first_name":"Moritz","full_name":"Neuser, Moritz","id":"32340","last_name":"Neuser"},{"first_name":"Eugen","full_name":"Wiens, Eugen","id":"7888","last_name":"Wiens"},{"first_name":"Olexandr","last_name":"Grydin","full_name":"Grydin, Olexandr","id":"43822"},{"last_name":"Homberg","id":"233","full_name":"Homberg, Werner","first_name":"Werner"},{"full_name":"Schaper, Mirko","id":"43720","last_name":"Schaper","first_name":"Mirko"}],"date_updated":"2024-03-14T15:22:17Z","doi":"10.21741/9781644902417-24","conference":{"name":"20th International Conference on Sheet Metal","start_date":"02.04.2023","end_date":"05.04.2023","location":"Nürnberg"},"publication":"Materials Research Proceedings","abstract":[{"lang":"eng","text":"<jats:p>Abstract. Requirements of multi-material construction involve adjustments to standard joining techniques. Especially the growing importance of integral cast components poses additional engineering challenges for the industry. One approach to achieve these goals are adaptable joining elements formed by friction spinning. This approach uses friction-induced heat to form customisable joining elements to join sheets for different boundary conditions, even for brittle cast materials. It is possible to react immediately to adapt to the joining process inline and reduce the amount of different joining elements. As the joining partner serve casting plates of the aluminium casting alloy EN AC–AlSi9, which is processed in the sand casting. Joining hypoeutectic AlSi alloys constitutes a challenge because the brittle character of these cause cracks in the joint during conventional mechanical joining. Furthermore, the friction-induced heat of the novel joining process causes a finer microstructure in the hypoeutectic AlSi9 casting alloy. In particular, the eutectic Si is more fine-grained, resulting in higher joint ductility. This study indicates the joining suitability of a hypoeutectic aluminium casting alloy in combination with adaptive manufactured additional joining elements. Here, various mechanical and microstructural investigations validate the influence of the thermomechanical joining technique. In conclusion, the potential of this joining process is presented regarding the joinability of cast aluminium components. </jats:p>"}],"language":[{"iso":"eng"}],"quality_controlled":"1","year":"2023","date_created":"2023-03-16T14:59:01Z","publisher":"Materials Research Forum LLC","title":"Influence of thermo-mechanical joining process on the microstructure of a hypoeutectic aluminium cast alloy"}]