--- _id: '48075' abstract: - lang: eng text: AbstractThe 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. article_type: original author: - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Viktor full_name: Arne, Viktor last_name: Arne - first_name: Thomas full_name: Borgert, Thomas id: '83141' last_name: Borgert - first_name: Alexander full_name: Brosius, Alexander last_name: Brosius - first_name: Peter full_name: Groche, Peter last_name: Groche - first_name: Christoph full_name: Hartmann, Christoph last_name: Hartmann - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Robert full_name: Laue, Robert last_name: Laue - first_name: Juri full_name: Martschin, Juri last_name: Martschin - first_name: Thomas full_name: Meurer, Thomas last_name: Meurer - first_name: Daniel full_name: Spies, Daniel last_name: Spies - first_name: A. Erman full_name: Tekkaya, A. Erman last_name: Tekkaya - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Wolfram full_name: Volk, Wolfram last_name: Volk - first_name: Frank full_name: Wendler, Frank last_name: Wendler - first_name: Malte full_name: Wrobel, Malte last_name: Wrobel citation: ama: 'Homberg W, Arian B, Arne V, et al. Softsensors: key component of property control in forming technology. Production Engineering. Published online 2023. doi:10.1007/s11740-023-01227-1' 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., & Wrobel, M. (2023). Softsensors: key component of property control in forming technology. Production Engineering. https://doi.org/10.1007/s11740-023-01227-1' 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={10.1007/s11740-023-01227-1}, 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} }' 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.” Production Engineering, 2023. https://doi.org/10.1007/s11740-023-01227-1.' ieee: 'W. Homberg et al., “Softsensors: key component of property control in forming technology,” Production Engineering, 2023, doi: 10.1007/s11740-023-01227-1.' mla: 'Homberg, Werner, et al. “Softsensors: Key Component of Property Control in Forming Technology.” Production Engineering, Springer Science and Business Media LLC, 2023, doi:10.1007/s11740-023-01227-1.' 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). date_created: 2023-10-16T07:17:17Z date_updated: 2023-12-22T10:56:58Z department: - _id: '156' - _id: '153' - _id: '241' doi: 10.1007/s11740-023-01227-1 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng main_file_link: - open_access: '1' url: https://link.springer.com/article/10.1007/s11740-023-01227-1 oa: '1' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: 'Softsensors: key component of property control in forming technology' type: journal_article user_id: '14931' year: '2023' ... --- _id: '34213' abstract: - lang: eng text: In this paper, a study based on experimental and numerical simulations is performed to analyze fatigue cracks in clinched joints. An experimental investigation is conducted to determine the failure modes of clinched joints under cyclic loading at different load amplitudes with single-lap shear tests. In addition, numerical FEM simulations of clinching process and subsequent shear loading are performed to support the experimental investigations by analyzing the state of stresses at the location of failure. An attempt is made to explain the location of crack initiation in the experiments using evaluation variables such as contact shear stress and maximum principal stress. author: - first_name: L. full_name: Ewenz, L. last_name: Ewenz - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Mortaza full_name: Otroshi, Mortaza id: '71269' last_name: Otroshi orcid: 0000-0002-8652-9209 - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: M. full_name: Zimmermann, M. last_name: Zimmermann citation: ama: Ewenz L, Bielak CR, Otroshi M, Bobbert M, Meschut G, Zimmermann M. Numerical and experimental identification of fatigue crack initiation sites in clinched joints. Production Engineering. 2022;16(2-3):305-313. doi:10.1007/s11740-022-01124-z apa: Ewenz, L., Bielak, C. R., Otroshi, M., Bobbert, M., Meschut, G., & Zimmermann, M. (2022). Numerical and experimental identification of fatigue crack initiation sites in clinched joints. Production Engineering, 16(2–3), 305–313. https://doi.org/10.1007/s11740-022-01124-z bibtex: '@article{Ewenz_Bielak_Otroshi_Bobbert_Meschut_Zimmermann_2022, title={Numerical and experimental identification of fatigue crack initiation sites in clinched joints}, volume={16}, DOI={10.1007/s11740-022-01124-z}, number={2–3}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Ewenz, L. and Bielak, Christian Roman and Otroshi, Mortaza and Bobbert, Mathias and Meschut, Gerson and Zimmermann, M.}, year={2022}, pages={305–313} }' chicago: 'Ewenz, L., Christian Roman Bielak, Mortaza Otroshi, Mathias Bobbert, Gerson Meschut, and M. Zimmermann. “Numerical and Experimental Identification of Fatigue Crack Initiation Sites in Clinched Joints.” Production Engineering 16, no. 2–3 (2022): 305–13. https://doi.org/10.1007/s11740-022-01124-z.' ieee: 'L. Ewenz, C. R. Bielak, M. Otroshi, M. Bobbert, G. Meschut, and M. Zimmermann, “Numerical and experimental identification of fatigue crack initiation sites in clinched joints,” Production Engineering, vol. 16, no. 2–3, pp. 305–313, 2022, doi: 10.1007/s11740-022-01124-z.' mla: Ewenz, L., et al. “Numerical and Experimental Identification of Fatigue Crack Initiation Sites in Clinched Joints.” Production Engineering, vol. 16, no. 2–3, Springer Science and Business Media LLC, 2022, pp. 305–13, doi:10.1007/s11740-022-01124-z. short: L. Ewenz, C.R. Bielak, M. Otroshi, M. Bobbert, G. Meschut, M. Zimmermann, Production Engineering 16 (2022) 305–313. date_created: 2022-12-05T21:12:10Z date_updated: 2022-12-05T21:14:34Z doi: 10.1007/s11740-022-01124-z intvolume: ' 16' issue: 2-3 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng page: 305-313 project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' - _id: '132' name: 'TRR 285 - B: TRR 285 - Project Area B' - _id: '141' name: 'TRR 285 – B02: TRR 285 - Subproject B02' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Numerical and experimental identification of fatigue crack initiation sites in clinched joints type: journal_article user_id: '7850' volume: 16 year: '2022' ... --- _id: '43156' abstract: - lang: eng text: The use of mechanical joining technologies offers the possibility of joining mixed material structures, which are used in particular in lightweight construction. An integrated securing of the joinability in versatile process chains is currently hardly possible as the number of combinable tool variants as well as variable force- and path-based process parameters is infinite. A versatile process chain, i.e. a sequence of all the processes and process steps required for product manufacturing, enables targeted changes to the semi-finished product, the joint, the component or the joining process that exceed the originally planned extend while still ensuring joinability. In detail, it leads to a unique joint with its own mechanical property profile, which, against the background of the resulting infinite number of combinations, makes it impossible to secure the joinability on the conventional experimentally based approach without extensive safety factors. The Transregional Colaborative Research Center 285 (TCRC285), which also initiated this special issue, is intended to enable mechanical joining technology to be versatile in the sense of high application flexibility. This is to be achieved with a numerical representation of the complete process chain from the incoming semi finished product via the joining part production and the joining process to the property profile of the joint in the operating phase. Thus a predictability of the joinability can be achieved and improvements in the individual life cycles of a joint can be realized by grasping the cause-and-effect relationships. On the basis of this knowledge, new possibilities for intervention in the joining process are to be created for the adaptation of the joining processes. With the aid of the methods developed for this purpose, tools will later be available to the end user to substitute the large number of mechanical joining processes or joining task-specific configurations with a smaller number of adaptable processes. This expands the flexibility in material choices, enabling challenges in environmental issues and sustainability to be overcome. author: - first_name: Gerson full_name: Meschut, Gerson last_name: Meschut - first_name: Marion full_name: Merklein, Marion last_name: Merklein - first_name: Alexander full_name: Brosius, Alexander last_name: Brosius - first_name: Mathias full_name: Bobbert, Mathias last_name: Bobbert citation: ama: Meschut G, Merklein M, Brosius A, Bobbert M. Mechanical joining in versatile process chains. Production Engineering. 2022;16(2-3):187-191. doi:10.1007/s11740-022-01125-y apa: Meschut, G., Merklein, M., Brosius, A., & Bobbert, M. (2022). Mechanical joining in versatile process chains. Production Engineering, 16(2–3), 187–191. https://doi.org/10.1007/s11740-022-01125-y bibtex: '@article{Meschut_Merklein_Brosius_Bobbert_2022, title={Mechanical joining in versatile process chains}, volume={16}, DOI={10.1007/s11740-022-01125-y}, number={2–3}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Meschut, Gerson and Merklein, Marion and Brosius, Alexander and Bobbert, Mathias}, year={2022}, pages={187–191} }' chicago: 'Meschut, Gerson, Marion Merklein, Alexander Brosius, and Mathias Bobbert. “Mechanical Joining in Versatile Process Chains.” Production Engineering 16, no. 2–3 (2022): 187–91. https://doi.org/10.1007/s11740-022-01125-y.' ieee: 'G. Meschut, M. Merklein, A. Brosius, and M. Bobbert, “Mechanical joining in versatile process chains,” Production Engineering, vol. 16, no. 2–3, pp. 187–191, 2022, doi: 10.1007/s11740-022-01125-y.' mla: Meschut, Gerson, et al. “Mechanical Joining in Versatile Process Chains.” Production Engineering, vol. 16, no. 2–3, Springer Science and Business Media LLC, 2022, pp. 187–91, doi:10.1007/s11740-022-01125-y. short: G. Meschut, M. Merklein, A. Brosius, M. Bobbert, Production Engineering 16 (2022) 187–191. date_created: 2023-03-29T08:31:27Z date_updated: 2023-03-29T08:32:24Z department: - _id: '157' doi: 10.1007/s11740-022-01125-y intvolume: ' 16' issue: 2-3 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng page: 187-191 publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Mechanical joining in versatile process chains type: journal_article user_id: '53912' volume: 16 year: '2022' ... --- _id: '34241' abstract: - lang: eng text: Due to the increasing use of multi-material constructions and the resulting material incompatibilities, mechanical joining technologies are gaining in importance. The reasons for this are the variety of joining possibilities as well as high load-bearing capacities. However, the currently rigid tooling systems cannot react to changing boundary conditions, such as changed sheet thicknesses or strength. For this reason, a large number of specialised joining processes have been developed to expand the range of applications. Using a versatile self-piercing riveting process, multi-material structures are joined in this paper. In this process, a modified tool actuator technology is combined with multi-range capable auxiliary joining parts. The multi-range capability of the rivets is achieved by forming the rivet head onto the respective thickness of the joining part combination without creating a tooling set-up effort. The joints are investigated both experimentally on the basis of joint formation and load-bearing capacity tests as well as by means of numerical simulation. It turned out that all the joints examined could be manufactured according to the defined standards. The load-bearing capacities of the joints are comparable to those of conventionally joined joints. In some cases the joint fails prematurely, which is why lower energy absorptions are obtained. However, the maximum forces achieved are higher than those of conventional joints. Especially in the case of high-strength materials arranged on the die side, the interlock formation is low. In addition, the use of die-sided sheets requires a large deformation of the rivet head protrusion, which leads to an increase in stress and, as a result, to damage if the rivet head. However, a negative influence on the joint load-bearing capacity could be excluded. author: - first_name: Fabian full_name: Kappe, Fabian id: '66459' last_name: Kappe - first_name: Simon full_name: Wituschek, Simon last_name: Wituschek - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Michael full_name: Lechner, Michael last_name: Lechner - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: Kappe F, Wituschek S, Bobbert M, Lechner M, Meschut G. Joining of multi-material structures using a versatile self-piercing riveting process. Production Engineering. Published online 2022. doi:10.1007/s11740-022-01151-w apa: Kappe, F., Wituschek, S., Bobbert, M., Lechner, M., & Meschut, G. (2022). Joining of multi-material structures using a versatile self-piercing riveting process. Production Engineering. https://doi.org/10.1007/s11740-022-01151-w bibtex: '@article{Kappe_Wituschek_Bobbert_Lechner_Meschut_2022, title={Joining of multi-material structures using a versatile self-piercing riveting process}, DOI={10.1007/s11740-022-01151-w}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Kappe, Fabian and Wituschek, Simon and Bobbert, Mathias and Lechner, Michael and Meschut, Gerson}, year={2022} }' chicago: Kappe, Fabian, Simon Wituschek, Mathias Bobbert, Michael Lechner, and Gerson Meschut. “Joining of Multi-Material Structures Using a Versatile Self-Piercing Riveting Process.” Production Engineering, 2022. https://doi.org/10.1007/s11740-022-01151-w. ieee: 'F. Kappe, S. Wituschek, M. Bobbert, M. Lechner, and G. Meschut, “Joining of multi-material structures using a versatile self-piercing riveting process,” Production Engineering, 2022, doi: 10.1007/s11740-022-01151-w.' mla: Kappe, Fabian, et al. “Joining of Multi-Material Structures Using a Versatile Self-Piercing Riveting Process.” Production Engineering, Springer Science and Business Media LLC, 2022, doi:10.1007/s11740-022-01151-w. short: F. Kappe, S. Wituschek, M. Bobbert, M. Lechner, G. Meschut, Production Engineering (2022). date_created: 2022-12-06T13:50:06Z date_updated: 2023-04-27T07:53:58Z department: - _id: '157' - _id: '630' doi: 10.1007/s11740-022-01151-w keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '146' name: 'TRR 285 – C02: TRR 285 - Subproject C02' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Joining of multi-material structures using a versatile self-piercing riveting process type: journal_article user_id: '7850' year: '2022' ... --- _id: '30100' abstract: - lang: eng text: Since the application of mechanical joining methods, such as clinching or riveting, offers a robust solution for the generation of advanced multi-material connections, the use in the field of lightweight designs (e.g. automotive industry) is steadily increasing. Therefore, not only the design of an individual joint is required but also the dimensioning of the entire joining connection is crucial. However, in comparison to thermal joining techniques, such as spot welding, the evaluation of the joints’ resistance against defined requirements (e.g. types of load, minimal amount of load cycles) mainly relies on the consideration of expert knowledge, a few design principles and a small amount of experimental data. Since this generally implies the involvement of several domains, such as the material characterization or the part design, a tremendous amount of data and knowledge is separately generated for a certain dimensioning process. Nevertheless, the lack of formalization and standardization in representing the gained knowledge leads to a difficult and inconsistent reuse, sharing or searching of already existing information. Thus, this contribution presents a specific ontology for the provision of cross-domain knowledge about mechanical joining processes and highlights two potential use cases of this ontology in the design of clinched and pin joints. author: - first_name: Christoph full_name: Zirngibl, Christoph last_name: Zirngibl - first_name: Patricia full_name: Kügler, Patricia last_name: Kügler - first_name: Julian full_name: Popp, Julian last_name: Popp - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Dietmar full_name: Drummer, Dietmar last_name: Drummer - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Sandro full_name: Wartzack, Sandro last_name: Wartzack - first_name: Benjamin full_name: Schleich, Benjamin last_name: Schleich citation: ama: Zirngibl C, Kügler P, Popp J, et al. Provision of cross-domain knowledge in mechanical joining using ontologies. Production Engineering. Published online 2022. doi:10.1007/s11740-022-01117-y apa: Zirngibl, C., Kügler, P., Popp, J., Bielak, C. R., Bobbert, M., Drummer, D., Meschut, G., Wartzack, S., & Schleich, B. (2022). Provision of cross-domain knowledge in mechanical joining using ontologies. Production Engineering. https://doi.org/10.1007/s11740-022-01117-y bibtex: '@article{Zirngibl_Kügler_Popp_Bielak_Bobbert_Drummer_Meschut_Wartzack_Schleich_2022, title={Provision of cross-domain knowledge in mechanical joining using ontologies}, DOI={10.1007/s11740-022-01117-y}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Zirngibl, Christoph and Kügler, Patricia and Popp, Julian and Bielak, Christian Roman and Bobbert, Mathias and Drummer, Dietmar and Meschut, Gerson and Wartzack, Sandro and Schleich, Benjamin}, year={2022} }' chicago: Zirngibl, Christoph, Patricia Kügler, Julian Popp, Christian Roman Bielak, Mathias Bobbert, Dietmar Drummer, Gerson Meschut, Sandro Wartzack, and Benjamin Schleich. “Provision of Cross-Domain Knowledge in Mechanical Joining Using Ontologies.” Production Engineering, 2022. https://doi.org/10.1007/s11740-022-01117-y. ieee: 'C. Zirngibl et al., “Provision of cross-domain knowledge in mechanical joining using ontologies,” Production Engineering, 2022, doi: 10.1007/s11740-022-01117-y.' mla: Zirngibl, Christoph, et al. “Provision of Cross-Domain Knowledge in Mechanical Joining Using Ontologies.” Production Engineering, Springer Science and Business Media LLC, 2022, doi:10.1007/s11740-022-01117-y. short: C. Zirngibl, P. Kügler, J. Popp, C.R. Bielak, M. Bobbert, D. Drummer, G. Meschut, S. Wartzack, B. Schleich, Production Engineering (2022). date_created: 2022-02-25T07:19:45Z date_updated: 2023-04-27T07:42:19Z department: - _id: '157' doi: 10.1007/s11740-022-01117-y keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '132' name: 'TRR 285 - B: TRR 285 - Project Area B' - _id: '144' name: 'TRR 285 – B05: TRR 285 - Subproject B05' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '145' name: 'TRR 285 – C01: TRR 285 - Subproject C01' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Provision of cross-domain knowledge in mechanical joining using ontologies type: journal_article user_id: '7850' year: '2022' ... --- _id: '30963' abstract: - lang: eng text: AbstractIn this paper, a study based on experimental and numerical simulations is performed to analyze fatigue cracks in clinched joints. An experimental investigation is conducted to determine the failure modes of clinched joints under cyclic loading at different load amplitudes with single-lap shear tests. In addition, numerical FEM simulations of clinching process and subsequent shear loading are performed to support the experimental investigations by analyzing the state of stresses at the location of failure. An attempt is made to explain the location of crack initiation in the experiments using evaluation variables such as contact shear stress and maximum principal stress. author: - first_name: Lars full_name: Ewenz, Lars last_name: Ewenz - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Mortaza full_name: Otroshi, Mortaza id: '71269' last_name: Otroshi orcid: 0000-0002-8652-9209 - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Martina full_name: Zimmermann, Martina last_name: Zimmermann citation: ama: Ewenz L, Bielak CR, Otroshi M, Bobbert M, Meschut G, Zimmermann M. Numerical and experimental identification of fatigue crack initiation sites in clinched joints. Production Engineering. 2022;16(2-3):305-313. doi:10.1007/s11740-022-01124-z apa: Ewenz, L., Bielak, C. R., Otroshi, M., Bobbert, M., Meschut, G., & Zimmermann, M. (2022). Numerical and experimental identification of fatigue crack initiation sites in clinched joints. Production Engineering, 16(2–3), 305–313. https://doi.org/10.1007/s11740-022-01124-z bibtex: '@article{Ewenz_Bielak_Otroshi_Bobbert_Meschut_Zimmermann_2022, title={Numerical and experimental identification of fatigue crack initiation sites in clinched joints}, volume={16}, DOI={10.1007/s11740-022-01124-z}, number={2–3}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Ewenz, Lars and Bielak, Christian Roman and Otroshi, Mortaza and Bobbert, Mathias and Meschut, Gerson and Zimmermann, Martina}, year={2022}, pages={305–313} }' chicago: 'Ewenz, Lars, Christian Roman Bielak, Mortaza Otroshi, Mathias Bobbert, Gerson Meschut, and Martina Zimmermann. “Numerical and Experimental Identification of Fatigue Crack Initiation Sites in Clinched Joints.” Production Engineering 16, no. 2–3 (2022): 305–13. https://doi.org/10.1007/s11740-022-01124-z.' ieee: 'L. Ewenz, C. R. Bielak, M. Otroshi, M. Bobbert, G. Meschut, and M. Zimmermann, “Numerical and experimental identification of fatigue crack initiation sites in clinched joints,” Production Engineering, vol. 16, no. 2–3, pp. 305–313, 2022, doi: 10.1007/s11740-022-01124-z.' mla: Ewenz, Lars, et al. “Numerical and Experimental Identification of Fatigue Crack Initiation Sites in Clinched Joints.” Production Engineering, vol. 16, no. 2–3, Springer Science and Business Media LLC, 2022, pp. 305–13, doi:10.1007/s11740-022-01124-z. short: L. Ewenz, C.R. Bielak, M. Otroshi, M. Bobbert, G. Meschut, M. Zimmermann, Production Engineering 16 (2022) 305–313. date_created: 2022-04-27T09:02:05Z date_updated: 2023-04-28T11:31:17Z department: - _id: '157' doi: 10.1007/s11740-022-01124-z intvolume: ' 16' issue: 2-3 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng page: 305-313 project: - _id: '132' name: 'TRR 285 - B: TRR 285 - Project Area B' - _id: '141' name: 'TRR 285 – B02: TRR 285 - Subproject B02' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Numerical and experimental identification of fatigue crack initiation sites in clinched joints type: journal_article user_id: '34782' volume: 16 year: '2022' ... --- _id: '29951' abstract: - lang: eng text: The components of a body in white consist of many individual thin-walled sheet metal parts, which usually are manufactured in deep-drawing processes. In general, the conditions in a deep-drawing process change due to changing tribology conditions, varying degrees of spring back, or scattering material properties in the sheet blanks, which affects the resulting pre-strain. Mechanical joining processes, especially clinching, are influenced by these process-related pre-strains. The final geometric shape of a clinched joint is affected to a significant level by the prior material deformation when joining with constant process parameters. That leads to a change in the stiffness and force transmission in the clinched joint due to the different geometric dimensions, such as interlock, neck thickness and bottom thickness, which directly affect the load bearing capacity. Here, the influence of the pre-straining in the deep drawing process on the force distribution in clinch points in an automotive assembly is investigated by finite-element models numerically. In further studies, the results are implemented in an optimization tool for designing clinched components. The methodology starts with a pre-straining of metal sheets. This step is followed by 2D rotationally symmetric forming simulations of the joining process. The resulting mesh of each forming simulation is rotated and 3D models are obtained. The clinched joint solid model with pre-strains is used further to determine the joint stiffnesses. With the simulation of the same test set-up with an equivalent point-connector model, the equivalent stiffness for each pre-strain combination is determined. Simulations are performed on a clinched component to assess the influence of pre-strain and sheet thinning on the clinched joint loadings by using the equivalent stiffnesses. The investigations clearly show that for the selected component, the loadings at the clinch points are dependent on the sheet thinning and the stiffnesses due to pre-strain. The magnitude of the influence varies depending on the quantity considered. For example, the shear force is more sensitive to the joint stiffness than to the sheet thinning. author: - first_name: Sven full_name: Martin, Sven id: '38177' last_name: Martin - first_name: Christian Roman full_name: Bielak, Christian Roman id: '34782' last_name: Bielak - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 citation: ama: Martin S, Bielak CR, Bobbert M, Tröster T, Meschut G. Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area. Production Engineering. Published online 2022. doi:10.1007/s11740-021-01103-w apa: Martin, S., Bielak, C. R., Bobbert, M., Tröster, T., & Meschut, G. (2022). Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area. Production Engineering. https://doi.org/10.1007/s11740-021-01103-w bibtex: '@article{Martin_Bielak_Bobbert_Tröster_Meschut_2022, title={Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area}, DOI={10.1007/s11740-021-01103-w}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Martin, Sven and Bielak, Christian Roman and Bobbert, Mathias and Tröster, Thomas and Meschut, Gerson}, year={2022} }' chicago: Martin, Sven, Christian Roman Bielak, Mathias Bobbert, Thomas Tröster, and Gerson Meschut. “Numerical Investigation of the Clinched Joint Loadings Considering the Initial Pre-Strain in the Joining Area.” Production Engineering, 2022. https://doi.org/10.1007/s11740-021-01103-w. ieee: 'S. Martin, C. R. Bielak, M. Bobbert, T. Tröster, and G. Meschut, “Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area,” Production Engineering, 2022, doi: 10.1007/s11740-021-01103-w.' mla: Martin, Sven, et al. “Numerical Investigation of the Clinched Joint Loadings Considering the Initial Pre-Strain in the Joining Area.” Production Engineering, Springer Science and Business Media LLC, 2022, doi:10.1007/s11740-021-01103-w. short: S. Martin, C.R. Bielak, M. Bobbert, T. Tröster, G. Meschut, Production Engineering (2022). date_created: 2022-02-22T12:52:09Z date_updated: 2023-04-28T11:57:22Z department: - _id: '321' - _id: '149' - _id: '630' - _id: '157' doi: 10.1007/s11740-021-01103-w keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng main_file_link: - open_access: '1' url: https://link.springer.com/article/10.1007/s11740-021-01103-w oa: '1' project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' - _id: '132' name: 'TRR 285 - B: TRR 285 - Project Area B' - _id: '140' name: 'TRR 285 – B01: TRR 285 - Subproject B01' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Numerical investigation of the clinched joint loadings considering the initial pre-strain in the joining area type: journal_article user_id: '38177' year: '2022' ... --- _id: '29505' abstract: - lang: eng text: In modern vehicle chassis, multi-material design is implemented to apply the appropriate material for each functionality. In spaceframe technology, both sheet metal and continuous cast are joined to castings at the nodal points of the chassis. Since resistance spot welding is not an option when different materials are joined, research is focusing on mechanical joining methods for multi-material designs. To reduce weight and achieve the required strength, hardenable cast aluminium alloys of the AlSi-system are widely used. Thus, 85–90% of aluminium castings in the automotive industry are comprised of the AlSi-system. Due to the limited weldability, mechanical joining is a suitable process. For this application, various optimisation strategies are required to produce a crack-free joint, as the brittle character of the AlSi alloy poses a challenge. Thus, adapted castings with appropriate ductility are needed. Hence, in this study, the age-hardenable cast aluminium alloy AlSi10Mg is investigated regarding the correlation of the different thicknesses, the microstructural characteristics as well as the resulting mechanical properties. A variation of the thicknesses leads to different solidification rates, which in turn affect the microstructure formation and are decisive for the mechanical properties of the casting as well as the joinability. For the investigation, plates with thicknesses from 2.0 to 4.0 mm, each differing by 0.5 mm, are produced via sand casting. Hence, the overall aim is to evaluate the joinability of AlSi10Mg and derive conclusions concerning the microstructure and mechanical properties. article_type: original author: - first_name: Moritz full_name: Neuser, Moritz id: '32340' last_name: Neuser - first_name: Olexandr full_name: Grydin, Olexandr id: '43822' last_name: Grydin - first_name: Y. full_name: Frolov, Y. last_name: Frolov - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: Neuser M, Grydin O, Frolov Y, Schaper M. Influence of solidification rates and heat treatment on the mechanical performance and joinability of the cast aluminium alloy AlSi10Mg. Production Engineering. Published online 2022. doi:10.1007/s11740-022-01106-1 apa: Neuser, M., Grydin, O., Frolov, Y., & Schaper, M. (2022). Influence of solidification rates and heat treatment on the mechanical performance and joinability of the cast aluminium alloy AlSi10Mg. Production Engineering. https://doi.org/10.1007/s11740-022-01106-1 bibtex: '@article{Neuser_Grydin_Frolov_Schaper_2022, title={Influence of solidification rates and heat treatment on the mechanical performance and joinability of the cast aluminium alloy AlSi10Mg}, DOI={10.1007/s11740-022-01106-1}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Neuser, Moritz and Grydin, Olexandr and Frolov, Y. and Schaper, Mirko}, year={2022} }' chicago: Neuser, Moritz, Olexandr Grydin, Y. Frolov, and Mirko Schaper. “Influence of Solidification Rates and Heat Treatment on the Mechanical Performance and Joinability of the Cast Aluminium Alloy AlSi10Mg.” Production Engineering, 2022. https://doi.org/10.1007/s11740-022-01106-1. ieee: 'M. Neuser, O. Grydin, Y. Frolov, and M. Schaper, “Influence of solidification rates and heat treatment on the mechanical performance and joinability of the cast aluminium alloy AlSi10Mg,” Production Engineering, 2022, doi: 10.1007/s11740-022-01106-1.' mla: Neuser, Moritz, et al. “Influence of Solidification Rates and Heat Treatment on the Mechanical Performance and Joinability of the Cast Aluminium Alloy AlSi10Mg.” Production Engineering, Springer Science and Business Media LLC, 2022, doi:10.1007/s11740-022-01106-1. short: M. Neuser, O. Grydin, Y. Frolov, M. Schaper, Production Engineering (2022). date_created: 2022-01-24T08:27:48Z date_updated: 2024-03-14T15:21:51Z department: - _id: '43' - _id: '158' - _id: '321' - _id: '630' doi: 10.1007/s11740-022-01106-1 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '136' name: 'TRR 285 – A02: TRR 285 - Subproject A02' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Influence of solidification rates and heat treatment on the mechanical performance and joinability of the cast aluminium alloy AlSi10Mg type: journal_article user_id: '32340' year: '2022' ... --- _id: '28568' abstract: - lang: eng text: AbstractRecent developments in automotive and aircraft industry towards a multi-material design pose challenges for modern joining technologies due to different mechanical properties and material compositions of various materials such as composites and metals. Therefore, mechanical joining technologies like clinching are in the focus of current research activities. For multi-material joints of metals and thermoplastic composites thermally assisted clinching processes with advanced tool concepts are well developed. The material-specific properties of fibre-reinforced thermoplastics have a significant influence on the joining process and the resulting material structure in the joining zone. For this reason, it is important to investigate these influences in detail and to understand the phenomena occurring during the joining process. Additionally, this provides the basis for a validation of a numerical simulation of such joining processes. In this paper, the material structure in a joint resulting from a thermally assisted clinching process is investigated. The joining partners are an aluminium sheet and a thermoplastic composite (organo sheet). Using computed tomography enables a three-dimensional investigation that allows a detailed analysis of the phenomena in different joining stages and in the material structure of the finished joint. Consequently, this study provides a more detailed understanding of the material behavior of thermoplastic composites during thermally assisted clinching. author: - first_name: Benjamin full_name: Gröger, Benjamin last_name: Gröger - first_name: Daniel full_name: Köhler, Daniel last_name: Köhler - first_name: Julian full_name: Vorderbrüggen, Julian id: '36235' last_name: Vorderbrüggen - first_name: Juliane full_name: Troschitz, Juliane last_name: Troschitz - first_name: Robert full_name: Kupfer, Robert last_name: Kupfer - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Maik full_name: Gude, Maik last_name: Gude citation: ama: Gröger B, Köhler D, Vorderbrüggen J, et al. Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets. Production Engineering. Published online 2021. doi:10.1007/s11740-021-01091-x apa: Gröger, B., Köhler, D., Vorderbrüggen, J., Troschitz, J., Kupfer, R., Meschut, G., & Gude, M. (2021). Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets. Production Engineering. https://doi.org/10.1007/s11740-021-01091-x bibtex: '@article{Gröger_Köhler_Vorderbrüggen_Troschitz_Kupfer_Meschut_Gude_2021, title={Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets}, DOI={10.1007/s11740-021-01091-x}, journal={Production Engineering}, author={Gröger, Benjamin and Köhler, Daniel and Vorderbrüggen, Julian and Troschitz, Juliane and Kupfer, Robert and Meschut, Gerson and Gude, Maik}, year={2021} }' chicago: Gröger, Benjamin, Daniel Köhler, Julian Vorderbrüggen, Juliane Troschitz, Robert Kupfer, Gerson Meschut, and Maik Gude. “Computed Tomography Investigation of the Material Structure in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” Production Engineering, 2021. https://doi.org/10.1007/s11740-021-01091-x. ieee: 'B. Gröger et al., “Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets,” Production Engineering, 2021, doi: 10.1007/s11740-021-01091-x.' mla: Gröger, Benjamin, et al. “Computed Tomography Investigation of the Material Structure in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” Production Engineering, 2021, doi:10.1007/s11740-021-01091-x. short: B. Gröger, D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut, M. Gude, Production Engineering (2021). date_created: 2021-12-10T14:25:29Z date_updated: 2022-04-25T14:48:52Z department: - _id: '157' doi: 10.1007/s11740-021-01091-x language: - iso: eng publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published quality_controlled: '1' status: public title: Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets type: journal_article user_id: '36235' year: '2021' ... --- _id: '30674' abstract: - lang: eng text: AbstractIn addition to the classical strength calculation, it is important to design components with regard to fracture mechanics because defects and cracks in a component can drastically influence its strength or fatigue behavior. Cracks can propagate due to operational loads and consequently lead to component failure. The fracture mechanical analysis provides information on stable or unstable crack growth as well as about the direction and the growth rate of a crack. For this purpose, sufficient information has to be available about the crack location, the crack length, the component geometry, the component loading and the fracture mechanical material parameters. The fracture mechanical properties are determined experimentally with standardized specimens as defined by the guidelines of the American Society for Testing and Materials. In practice, however, especially in the context with damage cases or formed material fracture mechanical parameters directly for a component are of interest. However, standard specimens often cannot be extracted at all due to the complexity of the component geometry. Therefore, the development of special specimens is required whereby certain arrangements have to be made in advance. These arrangements are presented in the present paper in order to contribute to a holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens. author: - first_name: Deborah full_name: Weiß, Deborah id: '45673' last_name: Weiß - first_name: Britta full_name: Schramm, Britta id: '4668' last_name: Schramm - first_name: Gunter full_name: Kullmer, Gunter id: '291' last_name: Kullmer citation: ama: Weiß D, Schramm B, Kullmer G. Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens. Production Engineering. Published online 2021. doi:10.1007/s11740-021-01096-6 apa: Weiß, D., Schramm, B., & Kullmer, G. (2021). Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens. Production Engineering. https://doi.org/10.1007/s11740-021-01096-6 bibtex: '@article{Weiß_Schramm_Kullmer_2021, title={Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens}, DOI={10.1007/s11740-021-01096-6}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Weiß, Deborah and Schramm, Britta and Kullmer, Gunter}, year={2021} }' chicago: Weiß, Deborah, Britta Schramm, and Gunter Kullmer. “Holistic Investigation Chain for the Experimental Determination of Fracture Mechanical Material Parameters with Special Specimens.” Production Engineering, 2021. https://doi.org/10.1007/s11740-021-01096-6. ieee: 'D. Weiß, B. Schramm, and G. Kullmer, “Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens,” Production Engineering, 2021, doi: 10.1007/s11740-021-01096-6.' mla: Weiß, Deborah, et al. “Holistic Investigation Chain for the Experimental Determination of Fracture Mechanical Material Parameters with Special Specimens.” Production Engineering, Springer Science and Business Media LLC, 2021, doi:10.1007/s11740-021-01096-6. short: D. Weiß, B. Schramm, G. Kullmer, Production Engineering (2021). date_created: 2022-03-29T08:05:02Z date_updated: 2023-04-27T10:14:53Z department: - _id: '143' doi: 10.1007/s11740-021-01096-6 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Holistic investigation chain for the experimental determination of fracture mechanical material parameters with special specimens type: journal_article user_id: '45673' year: '2021' ... --- _id: '24565' abstract: - lang: eng text: AbstractLaser surface treatment of metals is one option to improve their properties for adhesive bonding. In this paper, a pulsed YVO4 Laser source with a wavelength of 1064 nm and a maximum power of 25 W was utilized to increase the surface area of the steel HCT490X in order to improve its bonding properties with a carbon fibre reinforced polymer (CFRP). Investigated was the influence of the scanning speed of the laser source on the bonding properties. For this purpose, the steel surfaces were ablated at a scanning speed between 1500 and 4500 mm/s. Afterwards the components were bonded with the adhesive HexBond™ 677. After lap shear tests were carried out on the specimen, the surfaces were inspected using scanning electron microscopy (SEM). The experiments revealed that the bonding quality can be improved with a high scanning speed, even when the surface is not completely ablated. article_type: original author: - first_name: Dietrich full_name: Voswinkel, Dietrich id: '52634' last_name: Voswinkel - first_name: D. full_name: Kloidt, D. last_name: Kloidt - first_name: Olexandr full_name: Grydin, Olexandr id: '43822' last_name: Grydin - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: Voswinkel D, Kloidt D, Grydin O, Schaper M. Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials. Production Engineering. 2021;15(2):263-270. doi:10.1007/s11740-020-01006-2 apa: Voswinkel, D., Kloidt, D., Grydin, O., & Schaper, M. (2021). Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials. Production Engineering, 15(2), 263–270. https://doi.org/10.1007/s11740-020-01006-2 bibtex: '@article{Voswinkel_Kloidt_Grydin_Schaper_2021, title={Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials}, volume={15}, DOI={10.1007/s11740-020-01006-2}, number={2}, journal={Production Engineering}, author={Voswinkel, Dietrich and Kloidt, D. and Grydin, Olexandr and Schaper, Mirko}, year={2021}, pages={263–270} }' chicago: 'Voswinkel, Dietrich, D. Kloidt, Olexandr Grydin, and Mirko Schaper. “Time Efficient Laser Modification of Steel Surfaces for Advanced Bonding in Hybrid Materials.” Production Engineering 15, no. 2 (2021): 263–70. https://doi.org/10.1007/s11740-020-01006-2.' ieee: 'D. Voswinkel, D. Kloidt, O. Grydin, and M. Schaper, “Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials,” Production Engineering, vol. 15, no. 2, pp. 263–270, 2021, doi: 10.1007/s11740-020-01006-2.' mla: Voswinkel, Dietrich, et al. “Time Efficient Laser Modification of Steel Surfaces for Advanced Bonding in Hybrid Materials.” Production Engineering, vol. 15, no. 2, 2021, pp. 263–70, doi:10.1007/s11740-020-01006-2. short: D. Voswinkel, D. Kloidt, O. Grydin, M. Schaper, Production Engineering 15 (2021) 263–270. date_created: 2021-09-16T15:50:59Z date_updated: 2023-06-01T14:39:15Z department: - _id: '158' doi: 10.1007/s11740-020-01006-2 intvolume: ' 15' issue: '2' language: - iso: eng page: 263-270 publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published quality_controlled: '1' status: public title: Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials type: journal_article user_id: '43720' volume: 15 year: '2021' ... --- _id: '51199' abstract: - lang: eng text: AbstractRecent developments in automotive and aircraft industry towards a multi-material design pose challenges for modern joining technologies due to different mechanical properties and material compositions of various materials such as composites and metals. Therefore, mechanical joining technologies like clinching are in the focus of current research activities. For multi-material joints of metals and thermoplastic composites thermally assisted clinching processes with advanced tool concepts are well developed. The material-specific properties of fibre-reinforced thermoplastics have a significant influence on the joining process and the resulting material structure in the joining zone. For this reason, it is important to investigate these influences in detail and to understand the phenomena occurring during the joining process. Additionally, this provides the basis for a validation of a numerical simulation of such joining processes. In this paper, the material structure in a joint resulting from a thermally assisted clinching process is investigated. The joining partners are an aluminium sheet and a thermoplastic composite (organo sheet). Using computed tomography enables a three-dimensional investigation that allows a detailed analysis of the phenomena in different joining stages and in the material structure of the finished joint. Consequently, this study provides a more detailed understanding of the material behavior of thermoplastic composites during thermally assisted clinching. author: - first_name: Benjamin full_name: Gröger, Benjamin last_name: Gröger - first_name: Daniel full_name: Köhler, Daniel last_name: Köhler - first_name: Julian full_name: Vorderbrüggen, Julian last_name: Vorderbrüggen - first_name: Juliane full_name: Troschitz, Juliane last_name: Troschitz - first_name: Robert full_name: Kupfer, Robert last_name: Kupfer - first_name: Gerson full_name: Meschut, Gerson last_name: Meschut - first_name: Maik full_name: Gude, Maik last_name: Gude citation: ama: Gröger B, Köhler D, Vorderbrüggen J, et al. Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets. Production Engineering. 2021;16(2-3):203-212. doi:10.1007/s11740-021-01091-x apa: Gröger, B., Köhler, D., Vorderbrüggen, J., Troschitz, J., Kupfer, R., Meschut, G., & Gude, M. (2021). Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets. Production Engineering, 16(2–3), 203–212. https://doi.org/10.1007/s11740-021-01091-x bibtex: '@article{Gröger_Köhler_Vorderbrüggen_Troschitz_Kupfer_Meschut_Gude_2021, title={Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets}, volume={16}, DOI={10.1007/s11740-021-01091-x}, number={2–3}, journal={Production Engineering}, publisher={Springer Science and Business Media LLC}, author={Gröger, Benjamin and Köhler, Daniel and Vorderbrüggen, Julian and Troschitz, Juliane and Kupfer, Robert and Meschut, Gerson and Gude, Maik}, year={2021}, pages={203–212} }' chicago: 'Gröger, Benjamin, Daniel Köhler, Julian Vorderbrüggen, Juliane Troschitz, Robert Kupfer, Gerson Meschut, and Maik Gude. “Computed Tomography Investigation of the Material Structure in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” Production Engineering 16, no. 2–3 (2021): 203–12. https://doi.org/10.1007/s11740-021-01091-x.' ieee: 'B. Gröger et al., “Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets,” Production Engineering, vol. 16, no. 2–3, pp. 203–212, 2021, doi: 10.1007/s11740-021-01091-x.' mla: Gröger, Benjamin, et al. “Computed Tomography Investigation of the Material Structure in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” Production Engineering, vol. 16, no. 2–3, Springer Science and Business Media LLC, 2021, pp. 203–12, doi:10.1007/s11740-021-01091-x. short: B. Gröger, D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut, M. Gude, Production Engineering 16 (2021) 203–212. date_created: 2024-02-06T15:05:29Z date_updated: 2024-02-06T15:15:38Z department: - _id: '157' doi: 10.1007/s11740-021-01091-x intvolume: ' 16' issue: 2-3 keyword: - Industrial and Manufacturing Engineering - Mechanical Engineering language: - iso: eng page: 203-212 project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '148' name: 'TRR 285 – C04: TRR 285 - Subproject C04' - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '137' name: 'TRR 285 – A03: TRR 285 - Subproject A03' publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Computed tomography investigation of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets type: journal_article user_id: '83408' volume: 16 year: '2021' ... --- _id: '24563' abstract: - lang: eng text: AbstractLaser surface treatment of metals is one option to improve their properties for adhesive bonding. In this paper, a pulsed YVO4 Laser source with a wavelength of 1064 nm and a maximum power of 25 W was utilized to increase the surface area of the steel HCT490X in order to improve its bonding properties with a carbon fibre reinforced polymer (CFRP). Investigated was the influence of the scanning speed of the laser source on the bonding properties. For this purpose, the steel surfaces were ablated at a scanning speed between 1500 and 4500 mm/s. Afterwards the components were bonded with the adhesive HexBond™ 677. After lap shear tests were carried out on the specimen, the surfaces were inspected using scanning electron microscopy (SEM). The experiments revealed that the bonding quality can be improved with a high scanning speed, even when the surface is not completely ablated. author: - first_name: D. full_name: Voswinkel, D. last_name: Voswinkel - first_name: D. full_name: Kloidt, D. last_name: Kloidt - first_name: O. full_name: Grydin, O. last_name: Grydin - first_name: M. full_name: Schaper, M. last_name: Schaper citation: ama: Voswinkel D, Kloidt D, Grydin O, Schaper M. Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials. Production Engineering. Published online 2020:263-270. doi:10.1007/s11740-020-01006-2 apa: Voswinkel, D., Kloidt, D., Grydin, O., & Schaper, M. (2020). Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials. Production Engineering, 263–270. https://doi.org/10.1007/s11740-020-01006-2 bibtex: '@article{Voswinkel_Kloidt_Grydin_Schaper_2020, title={Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials}, DOI={10.1007/s11740-020-01006-2}, journal={Production Engineering}, author={Voswinkel, D. and Kloidt, D. and Grydin, O. and Schaper, M.}, year={2020}, pages={263–270} }' chicago: Voswinkel, D., D. Kloidt, O. Grydin, and M. Schaper. “Time Efficient Laser Modification of Steel Surfaces for Advanced Bonding in Hybrid Materials.” Production Engineering, 2020, 263–70. https://doi.org/10.1007/s11740-020-01006-2. ieee: 'D. Voswinkel, D. Kloidt, O. Grydin, and M. Schaper, “Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials,” Production Engineering, pp. 263–270, 2020, doi: 10.1007/s11740-020-01006-2.' mla: Voswinkel, D., et al. “Time Efficient Laser Modification of Steel Surfaces for Advanced Bonding in Hybrid Materials.” Production Engineering, 2020, pp. 263–70, doi:10.1007/s11740-020-01006-2. short: D. Voswinkel, D. Kloidt, O. Grydin, M. Schaper, Production Engineering (2020) 263–270. date_created: 2021-09-16T15:50:22Z date_updated: 2022-02-11T17:37:45Z department: - _id: '158' doi: 10.1007/s11740-020-01006-2 language: - iso: eng page: 263-270 publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published status: public title: Time efficient laser modification of steel surfaces for advanced bonding in hybrid materials type: journal_article user_id: '43822' year: '2020' ... --- _id: '15028' abstract: - lang: eng text: "Friction-spinning is an incremental forming process, which is accompanied by complex thermal and mechanical loads in the tool and the formed part. To influence the process temperature, two main process parameters, i.e. the rotation speed and the feed rate, can be adapted. With the objective to improve the tool performance and the quality of the workpiece, this study focuses on a coating concept for friction-spinning tools made of high speed steel (HS6 5 2C, 1.3343). On the one hand, atmospheric plasma sprayed (APS) Al2O3 and ZrO2-8Y2O3 coatings serve as a thermal insulator, and, on the other hand, physically vapor deposited (PVD) TiAlSi7.9N and CrAlSi7.5N films are applied to increase the hardness and wear resistance of the tools. In addition, duplex coatings, combining the APS and PVD technique, are synthesized to influence both the heat transfer and the tribological properties of friction-spinning tools.\r\nSubsequently, all coated tools are tested in a friction-spinning process to form flanges made of AW-6060 (AlMgSi 3.3206) tube materials. The tool temperatures are determined in-situ to investigate the impact of the tool coating on the process temperature. Compared to an uncoated tool, the alumina and zirconia coatings contribute to a reduction of the tool temperature by up to half, while the PVD films increase the hardness of the tool by 20 GPa. Furthermore, it is shown that the surface quality of thermally sprayed (TS) or PVD coated tools is directly related to the surface roughness of the resulting workpiece.\r\n" author: - first_name: Wolfgang full_name: Tillmann, Wolfgang last_name: Tillmann - first_name: Alexander full_name: Fehr, Alexander last_name: Fehr - first_name: Dominic full_name: Stangier, Dominic last_name: Stangier - first_name: Markus full_name: Dildrop, Markus last_name: Dildrop - first_name: Werner full_name: Homberg, Werner last_name: Homberg - first_name: Benjamin full_name: Lossen, Benjamin last_name: Lossen - first_name: Dina full_name: Hijazi, Dina id: '70700' last_name: Hijazi citation: ama: Tillmann W, Fehr A, Stangier D, et al. Al2O3/ZrO2-8Y2O3 and (Cr,Ti)AlSiN tool coatings to influence the temperature and surface quality in friction-spinning processes. Production Engineering. 2019:449-457. doi:10.1007/s11740-019-00899-y apa: Tillmann, W., Fehr, A., Stangier, D., Dildrop, M., Homberg, W., Lossen, B., & Hijazi, D. (2019). Al2O3/ZrO2-8Y2O3 and (Cr,Ti)AlSiN tool coatings to influence the temperature and surface quality in friction-spinning processes. Production Engineering, 449–457. https://doi.org/10.1007/s11740-019-00899-y bibtex: '@article{Tillmann_Fehr_Stangier_Dildrop_Homberg_Lossen_Hijazi_2019, title={Al2O3/ZrO2-8Y2O3 and (Cr,Ti)AlSiN tool coatings to influence the temperature and surface quality in friction-spinning processes}, DOI={10.1007/s11740-019-00899-y}, journal={Production Engineering}, author={Tillmann, Wolfgang and Fehr, Alexander and Stangier, Dominic and Dildrop, Markus and Homberg, Werner and Lossen, Benjamin and Hijazi, Dina}, year={2019}, pages={449–457} }' chicago: Tillmann, Wolfgang, Alexander Fehr, Dominic Stangier, Markus Dildrop, Werner Homberg, Benjamin Lossen, and Dina Hijazi. “Al2O3/ZrO2-8Y2O3 and (Cr,Ti)AlSiN Tool Coatings to Influence the Temperature and Surface Quality in Friction-Spinning Processes.” Production Engineering, 2019, 449–57. https://doi.org/10.1007/s11740-019-00899-y. ieee: W. Tillmann et al., “Al2O3/ZrO2-8Y2O3 and (Cr,Ti)AlSiN tool coatings to influence the temperature and surface quality in friction-spinning processes,” Production Engineering, pp. 449–457, 2019. mla: Tillmann, Wolfgang, et al. “Al2O3/ZrO2-8Y2O3 and (Cr,Ti)AlSiN Tool Coatings to Influence the Temperature and Surface Quality in Friction-Spinning Processes.” Production Engineering, 2019, pp. 449–57, doi:10.1007/s11740-019-00899-y. short: W. Tillmann, A. Fehr, D. Stangier, M. Dildrop, W. Homberg, B. Lossen, D. Hijazi, Production Engineering (2019) 449–457. date_created: 2019-11-19T08:03:43Z date_updated: 2022-01-06T06:52:15Z doi: 10.1007/s11740-019-00899-y language: - iso: eng page: 449-457 publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published status: public title: Al2O3/ZrO2-8Y2O3 and (Cr,Ti)AlSiN tool coatings to influence the temperature and surface quality in friction-spinning processes type: journal_article user_id: '70700' year: '2019' ... --- _id: '24697' author: - first_name: Volker full_name: Schulze, Volker last_name: Schulze - first_name: Eckart full_name: Uhlmann, Eckart last_name: Uhlmann - first_name: Rolf full_name: Mahnken, Rolf id: '335' last_name: Mahnken - first_name: Andreas full_name: Menzel, Andreas last_name: Menzel - first_name: Dirk full_name: Biermann, Dirk last_name: Biermann - first_name: Andreas full_name: Zabel, Andreas last_name: Zabel - first_name: Patrick full_name: Bollig, Patrick last_name: Bollig - first_name: Ivan M. full_name: Ivanov, Ivan M. last_name: Ivanov - first_name: Chun full_name: Cheng, Chun last_name: Cheng - first_name: Raphael full_name: Holtermann, Raphael last_name: Holtermann - first_name: Thorsten full_name: Bartel, Thorsten last_name: Bartel citation: ama: Schulze V, Uhlmann E, Mahnken R, et al. Evaluation of different approaches for modeling phase transformations in machining simulation. Production Engineering. Published online 2015:437-449. doi:10.1007/s11740-015-0618-7 apa: Schulze, V., Uhlmann, E., Mahnken, R., Menzel, A., Biermann, D., Zabel, A., Bollig, P., Ivanov, I. M., Cheng, C., Holtermann, R., & Bartel, T. (2015). Evaluation of different approaches for modeling phase transformations in machining simulation. Production Engineering, 437–449. https://doi.org/10.1007/s11740-015-0618-7 bibtex: '@article{Schulze_Uhlmann_Mahnken_Menzel_Biermann_Zabel_Bollig_Ivanov_Cheng_Holtermann_et al._2015, title={Evaluation of different approaches for modeling phase transformations in machining simulation}, DOI={10.1007/s11740-015-0618-7}, journal={Production Engineering}, author={Schulze, Volker and Uhlmann, Eckart and Mahnken, Rolf and Menzel, Andreas and Biermann, Dirk and Zabel, Andreas and Bollig, Patrick and Ivanov, Ivan M. and Cheng, Chun and Holtermann, Raphael and et al.}, year={2015}, pages={437–449} }' chicago: Schulze, Volker, Eckart Uhlmann, Rolf Mahnken, Andreas Menzel, Dirk Biermann, Andreas Zabel, Patrick Bollig, et al. “Evaluation of Different Approaches for Modeling Phase Transformations in Machining Simulation.” Production Engineering, 2015, 437–49. https://doi.org/10.1007/s11740-015-0618-7. ieee: 'V. Schulze et al., “Evaluation of different approaches for modeling phase transformations in machining simulation,” Production Engineering, pp. 437–449, 2015, doi: 10.1007/s11740-015-0618-7.' mla: Schulze, Volker, et al. “Evaluation of Different Approaches for Modeling Phase Transformations in Machining Simulation.” Production Engineering, 2015, pp. 437–49, doi:10.1007/s11740-015-0618-7. short: V. Schulze, E. Uhlmann, R. Mahnken, A. Menzel, D. Biermann, A. Zabel, P. Bollig, I.M. Ivanov, C. Cheng, R. Holtermann, T. Bartel, Production Engineering (2015) 437–449. date_created: 2021-09-20T11:01:00Z date_updated: 2023-01-24T14:34:09Z department: - _id: '9' - _id: '154' - _id: '321' doi: 10.1007/s11740-015-0618-7 language: - iso: eng page: 437-449 publication: Production Engineering publication_identifier: issn: - 0944-6524 - 1863-7353 publication_status: published quality_controlled: '1' status: public title: Evaluation of different approaches for modeling phase transformations in machining simulation type: journal_article user_id: '335' year: '2015' ...