[{"keyword":["Recycling","Aluminium","Friction-Induced","Energy Efficiency"],"publication":"Materials Research Proceedings","author":[{"id":"83141","last_name":"Borgert","full_name":"Borgert, Thomas","first_name":"Thomas"},{"id":"233","last_name":"Homberg","full_name":"Homberg, Werner","first_name":"Werner"}],"quality_controlled":"1","publisher":"Materials Research Forum LLC","date_created":"2023-04-17T08:00:28Z","status":"public","abstract":[{"lang":"eng","text":"Abstract. In order to reduce global energy consumption in production and industry along with the associated CO2 emissions, existing resources must be used more efficiently. This includes the energy-efficient and comprehensive recycling of a wide range of metals. Especially for the production of aluminium, there is a large potential for saving energy using efficient recycling processes. With regard to the recycling of aluminium studies have shown that solid-state recycling processes are significantly more efficient considering the used energy and resources compared to the conventional, smelting-metallurgical recycling process. In this paper, the direct and energy-efficient friction-induced recycling process (FIRP) based on the conform process is further described and analysed in terms of the temperature-property relationships. For this purpose, the influence of the processing temperature on the microstructure and properties of the recycled semi-finished products is investigated using the toll system that enables an ECAP forming. Specific sections of the (in theory) infinite, recycled semi-finished product are taken and analysed at different process temperatures of the solid state recycling process. Based on these sections, the properties in terms of mechanical hardness, strength, ductility and grain size are analysed and a degressive relationship between process temperature and mechanical hardness up to a temperature of 270 °C can be shown. Applying the Hall-Petch relationship, it is analysed whether there is a correlation between the strength and the microstructure in the form of the grain size. "}],"user_id":"83141","year":"2023","type":"conference","citation":{"bibtex":"@inproceedings{Borgert_Homberg_2023, title={Analysis of temperature effect on strength and microstructure in friction induced recycling process (FIRP)}, DOI={10.21741/9781644902479-211}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Borgert, Thomas and Homberg, Werner}, year={2023} }","mla":"Borgert, Thomas, and Werner Homberg. “Analysis of Temperature Effect on Strength and Microstructure in Friction Induced Recycling Process (FIRP).” Materials Research Proceedings, Materials Research Forum LLC, 2023, doi:10.21741/9781644902479-211.","apa":"Borgert, T., & Homberg, W. (2023). Analysis of temperature effect on strength and microstructure in friction induced recycling process (FIRP). Materials Research Proceedings. ESAFORM 2023, Kraków. https://doi.org/10.21741/9781644902479-211","ama":"Borgert T, Homberg W. Analysis of temperature effect on strength and microstructure in friction induced recycling process (FIRP). In: Materials Research Proceedings. Materials Research Forum LLC; 2023. doi:10.21741/9781644902479-211","chicago":"Borgert, Thomas, and Werner Homberg. “Analysis of Temperature Effect on Strength and Microstructure in Friction Induced Recycling Process (FIRP).” In Materials Research Proceedings. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902479-211.","ieee":"T. Borgert and W. Homberg, “Analysis of temperature effect on strength and microstructure in friction induced recycling process (FIRP),” presented at the ESAFORM 2023, Kraków, 2023, doi: 10.21741/9781644902479-211.","short":"T. Borgert, W. Homberg, in: Materials Research Proceedings, Materials Research Forum LLC, 2023."},"conference":{"name":"ESAFORM 2023","location":"Kraków"},"_id":"44036","department":[{"_id":"156"}],"publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","title":"Analysis of temperature effect on strength and microstructure in friction induced recycling process (FIRP)","language":[{"iso":"eng"}],"date_updated":"2023-04-26T13:26:22Z","doi":"10.21741/9781644902479-211"},{"page":"11-18","citation":{"ama":"Holzmüller M, Linnemann M, Homberg W, Psyk V, Kräusel V, Kroos J. Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming. In: Materials Research Proceedings. Vol 25. Materials Research Forum LLC; 2023:11-18. doi:10.21741/9781644902417-2","apa":"Holzmüller, M., Linnemann, M., Homberg, W., Psyk, V., Kräusel, V., & Kroos, J. (2023). Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming. Materials Research Proceedings, 25, 11–18. https://doi.org/10.21741/9781644902417-2","chicago":"Holzmüller, Maik, Maik Linnemann, Werner Homberg, Verena Psyk, Verena Kräusel, and Janika Kroos. “Proof of Concept for Incremental Sheet Metal Forming by Means of Electromagnetic and Electrohydraulic High-Speed Forming.” In Materials Research Proceedings, 25:11–18. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-2.","mla":"Holzmüller, Maik, et al. “Proof of Concept for Incremental Sheet Metal Forming by Means of Electromagnetic and Electrohydraulic High-Speed Forming.” Materials Research Proceedings, vol. 25, Materials Research Forum LLC, 2023, pp. 11–18, doi:10.21741/9781644902417-2.","bibtex":"@inproceedings{Holzmüller_Linnemann_Homberg_Psyk_Kräusel_Kroos_2023, title={Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming}, volume={25}, DOI={10.21741/9781644902417-2}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Holzmüller, Maik and Linnemann, Maik and Homberg, Werner and Psyk, Verena and Kräusel, Verena and Kroos, Janika}, year={2023}, pages={11–18} }","short":"M. Holzmüller, M. Linnemann, W. Homberg, V. Psyk, V. Kräusel, J. Kroos, in: Materials Research Proceedings, Materials Research Forum LLC, 2023, pp. 11–18.","ieee":"M. Holzmüller, M. Linnemann, W. Homberg, V. Psyk, V. Kräusel, and J. Kroos, “Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming,” in Materials Research Proceedings, Nürnberg, 2023, vol. 25, pp. 11–18, doi: 10.21741/9781644902417-2."},"type":"conference","year":"2023","conference":{"location":"Nürnberg","name":"20th International Conference on Sheet Metal 2023","start_date":"2023-04-02","end_date":"2023-04-05"},"intvolume":" 25","_id":"43044","volume":25,"date_created":"2023-03-17T10:23:18Z","status":"public","publication":"Materials Research Proceedings","keyword":["Incremental Sheet Forming","Aluminium","High-Speed Forming"],"quality_controlled":"1","publisher":"Materials Research Forum LLC","author":[{"first_name":"Maik","full_name":"Holzmüller, Maik","last_name":"Holzmüller","id":"82645"},{"last_name":"Linnemann","full_name":"Linnemann, Maik","first_name":"Maik"},{"last_name":"Homberg","id":"233","first_name":"Werner","full_name":"Homberg, Werner"},{"last_name":"Psyk","first_name":"Verena","full_name":"Psyk, Verena"},{"first_name":"Verena ","full_name":"Kräusel, Verena ","last_name":"Kräusel"},{"first_name":"Janika","full_name":"Kroos, Janika","last_name":"Kroos"}],"user_id":"82645","abstract":[{"text":"Abstract. The combination of incremental sheet metal forming and high-speed forming offers new possibilities for flexible forming processes in the production of large sheet metal components of increased complexity with relatively low forming energies. In this paper, the general feasibility and process differences between the pulse-driven high-speed forming technologies of electrohydraulic and electromagnetic forming were investigated. An example component made of EN AW 6016 aluminum sheet metal was thus formed incrementally by both processes and the forming result evaluated by an optical 3D measurement system. For this purpose, a forming strategy for electromagnetic incremental forming (EMIF) was developed, tested and adapted to the electrohydraulic incremental forming process (EHIF). The discharge energy, the tool displacement and the pressure field of the forming zone were determined as relevant parameters for the definition of an adequate tool path strategy. It was found that the EHIF process is less affected by larger distances between the tool and the blank, while this is a critical variable for force application to the component during EMIF. On the other hand, the more uniform pressure distribution of the EMIF process is advantageous for forming large steady component areas. ","lang":"eng"}],"language":[{"iso":"eng"}],"doi":"10.21741/9781644902417-2","date_updated":"2023-05-02T11:40:24Z","publication_identifier":{"issn":["2474-395X"]},"publication_status":"published","department":[{"_id":"156"}],"title":"Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming"},{"title":"Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry","user_id":"77250","abstract":[{"text":"Additive manufacturing, e.g. by laser powder bed fusion (LPBF), is very attractive for lightweight constructions, as complex and stress-optimised structures integrating multiple functions can be produced within one process. Unfortunately, high strength AlZnMgCu alloys tend to hot cracking during LPBF\r\nand thus have not so far been applicable. In this work the melting and solidification behaviour of\r\nAlZnMgCu alloy powder variants with particle surface inoculation was analysed by Differential Fast\r\nScanning Calorimetry. The aim is to establish a method that makes it possible to assess powder modifications in terms of their suitability for LPBF on a laboratory scale requiring only small amounts of powder.\r\nTherefore, solidification undercooling is evaluated at cooling rates relevant for LPBF. A method for the\r\ntemperature correction and normalisation of the DFSC results is proposed. Two ways of powder modification were tested for the powder particles surface inoculation by titanium carbide (TiC) nanoparticles:\r\nvia wet-chemical deposition and via mechanical mixing.\r\nA low undercooling from DFSC correlates with a low number of cracks of LPBF-manufactured cubes. It\r\nappears that a reduced undercooling combined with reduced solidification onset scatter indicates the\r\npossibility of crack-free LPBF of alloys that otherwise tend to hot cracking.","lang":"eng"}],"article_type":"original","publication_identifier":{"issn":["0264-1275"]},"publication_status":"published","date_created":"2021-09-17T08:38:58Z","status":"public","department":[{"_id":"9"},{"_id":"158"},{"_id":"219"}],"publication":"Materials & Design","keyword":["Aluminium alloy 7075","Differential fast scanning calorimetry","Solidification","Undercooling","Additive manufacturing"],"author":[{"last_name":"Zhuravlev","full_name":"Zhuravlev, Evgeny","first_name":"Evgeny"},{"full_name":"Milkereit, Benjamin","first_name":"Benjamin","last_name":"Milkereit"},{"first_name":"Bin","full_name":"Yang, Bin","last_name":"Yang"},{"last_name":"Heiland","first_name":"Steffen","full_name":"Heiland, Steffen"},{"last_name":"Vieth","first_name":"Pascal","full_name":"Vieth, Pascal"},{"last_name":"Voigt","full_name":"Voigt, Markus","first_name":"Markus"},{"first_name":"Mirko","full_name":"Schaper, Mirko","last_name":"Schaper"},{"last_name":"Grundmeier","full_name":"Grundmeier, Guido","first_name":"Guido"},{"full_name":"Schick, Christoph","first_name":"Christoph","last_name":"Schick"},{"last_name":"Kessler","first_name":"Olaf","full_name":"Kessler, Olaf"}],"doi":"10.1016/j.matdes.2021.109677","article_number":"109677","date_updated":"2022-01-06T06:56:29Z","_id":"24589","citation":{"mla":"Zhuravlev, Evgeny, et al. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.” Materials & Design, 109677, 2021, doi:10.1016/j.matdes.2021.109677.","bibtex":"@article{Zhuravlev_Milkereit_Yang_Heiland_Vieth_Voigt_Schaper_Grundmeier_Schick_Kessler_2021, title={Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry}, DOI={10.1016/j.matdes.2021.109677}, number={109677}, journal={Materials & Design}, author={Zhuravlev, Evgeny and Milkereit, Benjamin and Yang, Bin and Heiland, Steffen and Vieth, Pascal and Voigt, Markus and Schaper, Mirko and Grundmeier, Guido and Schick, Christoph and Kessler, Olaf}, year={2021} }","ama":"Zhuravlev E, Milkereit B, Yang B, et al. Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry. Materials & Design. Published online 2021. doi:10.1016/j.matdes.2021.109677","apa":"Zhuravlev, E., Milkereit, B., Yang, B., Heiland, S., Vieth, P., Voigt, M., Schaper, M., Grundmeier, G., Schick, C., & Kessler, O. (2021). Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry. Materials & Design, Article 109677. https://doi.org/10.1016/j.matdes.2021.109677","chicago":"Zhuravlev, Evgeny, Benjamin Milkereit, Bin Yang, Steffen Heiland, Pascal Vieth, Markus Voigt, Mirko Schaper, Guido Grundmeier, Christoph Schick, and Olaf Kessler. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.” Materials & Design, 2021. https://doi.org/10.1016/j.matdes.2021.109677.","ieee":"E. Zhuravlev et al., “Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry,” Materials & Design, Art. no. 109677, 2021, doi: 10.1016/j.matdes.2021.109677.","short":"E. Zhuravlev, B. Milkereit, B. Yang, S. Heiland, P. Vieth, M. Voigt, M. Schaper, G. Grundmeier, C. Schick, O. Kessler, Materials & Design (2021)."},"year":"2021","type":"journal_article","language":[{"iso":"eng"}]},{"date_updated":"2023-01-19T11:38:10Z","doi":"10.2370/9783844082715","series_title":"Schriftenreihe Institut für Leichtbau mit Hybridsystemen","language":[{"iso":"ger"}],"title":"Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe","department":[{"_id":"9"},{"_id":"149"},{"_id":"321"}],"publication_identifier":{"isbn":["978-3-8440-8271-5"]},"publication_status":"published","_id":"37579","supervisor":[{"id":"553","last_name":"Tröster","full_name":"Tröster, Thomas","first_name":"Thomas"}],"year":"2021","citation":{"short":"A.A. Camberg, Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe, Shaker Verlag, 2021.","ieee":"A. A. Camberg, Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe, vol. 2021,52. Shaker Verlag, 2021.","ama":"Camberg AA. Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe. Vol 2021,52. Shaker Verlag; 2021. doi:10.2370/9783844082715","apa":"Camberg, A. A. (2021). Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe: Vol. 2021,52. Shaker Verlag. https://doi.org/10.2370/9783844082715","chicago":"Camberg, Alan Adam. Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe. Vol. 2021,52. Schriftenreihe Institut für Leichtbau mit Hybridsystemen. Shaker Verlag, 2021. https://doi.org/10.2370/9783844082715.","mla":"Camberg, Alan Adam. Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe. Shaker Verlag, 2021, doi:10.2370/9783844082715.","bibtex":"@book{Camberg_2021, series={Schriftenreihe Institut für Leichtbau mit Hybridsystemen}, title={Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe}, volume={2021,52}, DOI={10.2370/9783844082715}, publisher={Shaker Verlag}, author={Camberg, Alan Adam}, year={2021}, collection={Schriftenreihe Institut für Leichtbau mit Hybridsystemen} }"},"type":"dissertation","page":"230","abstract":[{"lang":"ger","text":"Leichtmetalle mit einem breiten Eigenschaftsspektrum gewährleisten die Realisierung ressourcenschonender Produkte und ermöglichen die Intensivierung sortenreiner Kreislaufwirtschaften. Die vorliegende Arbeit untersucht einen wärmeunterstützten Ansatz zur Erhöhung der Formgebungsgrenzen stark kaltverfestigter AlMg4,5 Blechwerkstoffe bei gleichzeitiger Beschränkung des Festigkeitsverlustes durch Erholungseffekte. Experimentelle Untersuchungen stellen eine wissenschaftlich fundierte Erkenntnisbasis über die werkstofftechnischen Wirkzusammenhänge des untersuchten Prozesses dar. Gepaart mit an realen Bauteilgeometrien validierten numerischen Simulationsmodellen legt diese Arbeit einen methodischen Grundstein für die industrielle Umsetzung des hier untersuchten Blechumformprozesses. Die erzielte mittlere Dehngrenze des exemplarisch untersuchten Bauteils übersteigt die Dehngrenze eines konventionellen AlMg4,5 Werkstoffes um 190 %. Mit 320 MPa entspricht sie dem Festigkeitsniveau des walzharten Blechhalbzeuges im Lieferzustand, ein Wert, der nach dem aktuellen Stand der Technik auf Bauteilebene ausschließlich mit aushärtbaren AlMgSi Legierungen darstellbar ist. "}],"extern":"1","user_id":"15952","publisher":"Shaker Verlag","author":[{"id":"60544","last_name":"Camberg","full_name":"Camberg, Alan Adam","first_name":"Alan Adam"}],"keyword":["Aluminium","Blechumformung","AlMg","Materialmodellierung","Duktiles Versagen","Halbwarmumformung","Automobil","Leichtbau","Uni-Alloy","5000-Serie","5182","GISSMO"],"status":"public","date_created":"2023-01-19T11:38:04Z","volume":"2021,52"},{"title":"Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization","publication_status":"published","publication_identifier":{"issn":["0026-2714"]},"department":[{"_id":"151"}],"doi":"https://doi.org/10.1016/j.microrel.2021.114077","date_updated":"2023-09-21T14:15:33Z","language":[{"iso":"eng"}],"user_id":"210","abstract":[{"lang":"eng","text":"Ultrasonic wire bonding is a solid-state joining process, used in the electronics industry to form electrical connections, e.g. to connect electrical terminals within semiconductor modules. Many process parameters affect the bond strength, such like the bond normal force, ultrasonic power, wire material and bonding frequency. Today, process design, development, and optimization is most likely based on the knowledge of process engineers and is mainly performed by experimental testing. In this contribution, a newly developed simulation tool is presented, to reduce time and costs and efficiently determine optimized process parameter. Based on a co-simulation of MATLAB and ANSYS, the different physical phenomena of the wire bonding process are considered using finite element simulation for the complex plastic deformation of the wire and reduced order models for the transient dynamics of the transducer, wire, substrate and bond formation. The model parameters such as the coefficients of friction between bond tool and wire and between wire and substrate were determined for aluminium and copper wire in experiments with a test rig specially developed for the requirements of heavy wire bonding. To reduce simulation time, for the finite element simulation a restart analysis and high performance computing is utilized. Detailed analysis of the bond formation showed, that the normal pressure distribution in the contact between wire and substrate has high impact on bond formation and distribution of welded areas in the contact area."}],"date_created":"2021-03-10T09:37:02Z","status":"public","volume":119,"publication":"Microelectronics Reliability","keyword":["Ultrasonic heavy wire bonding","Co-simulation","ANSYS","MATLAB","Process optimization","Friction coefficient","Copper-copper","Aluminium-copper"],"author":[{"id":"28647","last_name":"Schemmel","full_name":"Schemmel, Reinhard","first_name":"Reinhard"},{"last_name":"Krieger","full_name":"Krieger, Viktor","first_name":"Viktor"},{"first_name":"Tobias","full_name":"Hemsel, Tobias","last_name":"Hemsel","id":"210"},{"id":"21220","last_name":"Sextro","full_name":"Sextro, Walter","first_name":"Walter"}],"quality_controlled":"1","_id":"21436","intvolume":" 119","page":"114077","type":"journal_article","citation":{"mla":"Schemmel, Reinhard, et al. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” Microelectronics Reliability, vol. 119, 2021, p. 114077, doi:https://doi.org/10.1016/j.microrel.2021.114077.","bibtex":"@article{Schemmel_Krieger_Hemsel_Sextro_2021, title={Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization}, volume={119}, DOI={https://doi.org/10.1016/j.microrel.2021.114077}, journal={Microelectronics Reliability}, author={Schemmel, Reinhard and Krieger, Viktor and Hemsel, Tobias and Sextro, Walter}, year={2021}, pages={114077} }","apa":"Schemmel, R., Krieger, V., Hemsel, T., & Sextro, W. (2021). Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. Microelectronics Reliability, 119, 114077. https://doi.org/10.1016/j.microrel.2021.114077","ama":"Schemmel R, Krieger V, Hemsel T, Sextro W. Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization. Microelectronics Reliability. 2021;119:114077. doi:https://doi.org/10.1016/j.microrel.2021.114077","chicago":"Schemmel, Reinhard, Viktor Krieger, Tobias Hemsel, and Walter Sextro. “Co-Simulation of MATLAB and ANSYS for Ultrasonic Wire Bonding Process Optimization.” Microelectronics Reliability 119 (2021): 114077. https://doi.org/10.1016/j.microrel.2021.114077.","ieee":"R. Schemmel, V. Krieger, T. Hemsel, and W. Sextro, “Co-simulation of MATLAB and ANSYS for ultrasonic wire bonding process optimization,” Microelectronics Reliability, vol. 119, p. 114077, 2021, doi: https://doi.org/10.1016/j.microrel.2021.114077.","short":"R. Schemmel, V. Krieger, T. Hemsel, W. Sextro, Microelectronics Reliability 119 (2021) 114077."},"year":"2021"},{"_id":"19973","intvolume":" 14","page":"417-423","year":"2020","type":"journal_article","citation":{"chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Improvement of a Rivet Geometry for the Self-Piercing Riveting of High-Strength Steel and Multi-Material Joints.” Production Engineering 14 (2020): 417–23. https://doi.org/10.1007/s11740-020-00973-w.","apa":"Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2020). Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints. Production Engineering, 14, 417–423. https://doi.org/10.1007/s11740-020-00973-w","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints. Production Engineering. 2020;14:417-423. doi:10.1007/s11740-020-00973-w","mla":"Uhe, Benedikt, et al. “Improvement of a Rivet Geometry for the Self-Piercing Riveting of High-Strength Steel and Multi-Material Joints.” Production Engineering, vol. 14, 2020, pp. 417–23, doi:10.1007/s11740-020-00973-w.","bibtex":"@article{Uhe_Kuball_Merklein_Meschut_2020, title={Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints}, volume={14}, DOI={10.1007/s11740-020-00973-w}, journal={Production Engineering}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2020}, pages={417–423} }","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Production Engineering 14 (2020) 417–423.","ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints,” Production Engineering, vol. 14, pp. 417–423, 2020, doi: 10.1007/s11740-020-00973-w."},"user_id":"38131","abstract":[{"text":"As a result of lightweight design, increased use is being made of high-strength steel and aluminium in car bodies. Self-piercing riveting is an established technique for joining these materials. The dissimilar properties of the two materials have led to a number of different rivet geometries in the past. Each rivet geometry fulfils the requirements of the materials within a limited range. In the present investigation, an improved rivet geometry is developed, which permits the reliable joining of two material combinations that could only be joined by two different rivet geometries up until now. Material combination 1 consists of high-strength steel on both sides, while material combination 2 comprises aluminium on the punch side and high-strength steel on the die side. The material flow and the stress and strain conditions prevailing during the joining process are analysed by means of numerical simulation. The rivet geometry is then improved step-by-step on the basis of this analysis. Finally, the improved rivet geometry is manufactured and the findings of the investigation are verified in experimental joining tests.","lang":"eng"}],"article_type":"original","volume":14,"date_created":"2020-10-12T08:14:13Z","status":"public","keyword":["Self-piercing riveting","Joining technology","Rivet geometry","Multi-material design","High-strength steel","Aluminium"],"publication":"Production Engineering","quality_controlled":"1","author":[{"first_name":"Benedikt","full_name":"Uhe, Benedikt","last_name":"Uhe","id":"38131"},{"last_name":"Kuball","full_name":"Kuball, Clara-Maria","first_name":"Clara-Maria"},{"last_name":"Merklein","full_name":"Merklein, Marion","first_name":"Marion"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","last_name":"Meschut","id":"32056"}],"doi":"10.1007/s11740-020-00973-w","date_updated":"2023-04-28T09:20:41Z","language":[{"iso":"eng"}],"title":"Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints","publication_status":"published","department":[{"_id":"157"}]}]