[{"language":[{"iso":"eng"}],"article_number":"302","user_id":"7888","department":[{"_id":"156"}],"_id":"63347","status":"public","abstract":[{"text":"<jats:p>Friction-spinning is an incremental thermomechanical forming process that has huge potential due to its simple yet effective mechanism of utilising friction between a rotating workpiece and a forming tool to increase the workpiece’s temperature, which reduces the required forces and increases formability during the forming process. Despite the simplicity of the process’s setup, the thermomechanical loads and high relative velocities involved, especially in the contact zone, make the application of classical methods for characterising friction inaccurate. It is therefore essential to find a way to describe the frictional behaviour under real process conditions to be able to gain a holistic understanding of the process and the effect of the adjustable parameters on the outcome, especially the temperature. To achieve this goal, an experimental setup that considers the actual process boundary conditions in forming tubes made of EN AW-6060 was used to measure in situ normal and frictional forces, in addition to process temperatures, under varying rotational speed and feed rate values.</jats:p>","lang":"eng"}],"type":"journal_article","publication":"Journal of Manufacturing and Materials Processing","doi":"10.3390/jmmp9090302","title":"In Situ Investigation of the Frictional Behaviour in Friction-Spinning","author":[{"id":"7888","full_name":"Wiens, Eugen","last_name":"Wiens","first_name":"Eugen"},{"last_name":"Hijazi","full_name":"Hijazi, Dina","first_name":"Dina"},{"last_name":"Jüttner","full_name":"Jüttner, Maik","first_name":"Maik"},{"first_name":"Werner","full_name":"Homberg, Werner","id":"233","last_name":"Homberg"},{"last_name":"Kensy","full_name":"Kensy, Mark Dennis","first_name":"Mark Dennis"},{"first_name":"Wolfgang","full_name":"Tillmann, Wolfgang","last_name":"Tillmann"}],"date_created":"2025-12-19T10:05:03Z","volume":9,"publisher":"MDPI AG","date_updated":"2025-12-22T10:39:34Z","citation":{"apa":"Wiens, E., Hijazi, D., Jüttner, M., Homberg, W., Kensy, M. D., &#38; Tillmann, W. (2025). In Situ Investigation of the Frictional Behaviour in Friction-Spinning. <i>Journal of Manufacturing and Materials Processing</i>, <i>9</i>(9), Article 302. <a href=\"https://doi.org/10.3390/jmmp9090302\">https://doi.org/10.3390/jmmp9090302</a>","short":"E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M.D. Kensy, W. Tillmann, Journal of Manufacturing and Materials Processing 9 (2025).","mla":"Wiens, Eugen, et al. “In Situ Investigation of the Frictional Behaviour in Friction-Spinning.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 9, no. 9, 302, MDPI AG, 2025, doi:<a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>.","bibtex":"@article{Wiens_Hijazi_Jüttner_Homberg_Kensy_Tillmann_2025, title={In Situ Investigation of the Frictional Behaviour in Friction-Spinning}, volume={9}, DOI={<a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>}, number={9302}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Wiens, Eugen and Hijazi, Dina and Jüttner, Maik and Homberg, Werner and Kensy, Mark Dennis and Tillmann, Wolfgang}, year={2025} }","chicago":"Wiens, Eugen, Dina Hijazi, Maik Jüttner, Werner Homberg, Mark Dennis Kensy, and Wolfgang Tillmann. “In Situ Investigation of the Frictional Behaviour in Friction-Spinning.” <i>Journal of Manufacturing and Materials Processing</i> 9, no. 9 (2025). <a href=\"https://doi.org/10.3390/jmmp9090302\">https://doi.org/10.3390/jmmp9090302</a>.","ieee":"E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M. D. Kensy, and W. Tillmann, “In Situ Investigation of the Frictional Behaviour in Friction-Spinning,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 9, no. 9, Art. no. 302, 2025, doi: <a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>.","ama":"Wiens E, Hijazi D, Jüttner M, Homberg W, Kensy MD, Tillmann W. In Situ Investigation of the Frictional Behaviour in Friction-Spinning. <i>Journal of Manufacturing and Materials Processing</i>. 2025;9(9). doi:<a href=\"https://doi.org/10.3390/jmmp9090302\">10.3390/jmmp9090302</a>"},"intvolume":"         9","year":"2025","issue":"9","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2504-4494"]}},{"publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"citation":{"mla":"Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, 157, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>.","bibtex":"@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024, title={Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>}, number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024} }","short":"J. Friedlein, M. Böhnke, M. Schlichter, M. Bobbert, G. Meschut, J. Mergheim, P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).","apa":"Friedlein, J., Böhnke, M., Schlichter, M., Bobbert, M., Meschut, G., Mergheim, J., &#38; Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>, <i>8</i>(4), Article 157. <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>","ama":"Friedlein J, Böhnke M, Schlichter M, et al. Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>. 2024;8(4). doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>","chicago":"Friedlein, Johannes, Max Böhnke, Malte Schlichter, Mathias Bobbert, Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i> 8, no. 4 (2024). <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>.","ieee":"J. Friedlein <i>et al.</i>, “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, Art. no. 157, 2024, doi: <a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>."},"intvolume":"         8","author":[{"first_name":"Johannes","full_name":"Friedlein, Johannes","last_name":"Friedlein"},{"last_name":"Böhnke","full_name":"Böhnke, Max","first_name":"Max"},{"first_name":"Malte","full_name":"Schlichter, Malte","last_name":"Schlichter"},{"first_name":"Mathias","full_name":"Bobbert, Mathias","last_name":"Bobbert"},{"full_name":"Meschut, Gerson","last_name":"Meschut","first_name":"Gerson"},{"last_name":"Mergheim","full_name":"Mergheim, Julia","first_name":"Julia"},{"first_name":"Paul","full_name":"Steinmann, Paul","last_name":"Steinmann"}],"volume":8,"date_updated":"2025-01-31T17:03:34Z","doi":"10.3390/jmmp8040157","type":"journal_article","status":"public","user_id":"84990","project":[{"_id":"130","name":"TRR 285: TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","grant_number":"418701707"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"139","name":"TRR 285 – A05: TRR 285 - Subproject A05"}],"_id":"58491","article_number":"157","issue":"4","year":"2024","date_created":"2025-01-31T16:59:13Z","publisher":"MDPI AG","title":"Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining","publication":"Journal of Manufacturing and Materials Processing","abstract":[{"lang":"eng","text":"<jats:p>Similar to bulk metal forming, clinch joining is characterised by large plastic deformations and a variety of different 3D stress states, including severe compression. However, inherent to plastic forming is the nucleation and growth of defects, whose detrimental effects on the material behaviour can be described by continuum damage models and eventually lead to material failure. As the damage evolution strongly depends on the stress state, a stress-state-dependent model is utilised to correctly track the accumulation. To formulate and parameterise this model, besides classical experiments, so-called modified punch tests are also integrated herein to enhance the calibration of the failure model by capturing a larger range of stress states and metal-forming-specific loading conditions. Moreover, when highly ductile materials are considered, such as the dual-phase steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong necking and localisation might occur prior to fracture. This can alter the stress state and affect the actual strain at failure. This influence is captured by coupling plasticity and damage to incorporate the damage-induced softening effect. Its relative importance is shown by conducting inverse parameter identifications to determine damage and failure parameters for both mentioned ductile metals based on up to 12 different experiments.</jats:p>"}],"language":[{"iso":"eng"}],"keyword":["ductile damage","stress-state dependency","failure","parameter identification","punch test","clinching"]},{"date_updated":"2025-05-20T13:14:43Z","volume":8,"author":[{"first_name":"Johannes","full_name":"Friedlein, Johannes","last_name":"Friedlein"},{"last_name":"Böhnke","full_name":"Böhnke, Max","id":"45779","first_name":"Max"},{"id":"61977","full_name":"Schlichter, Malte Christian","last_name":"Schlichter","first_name":"Malte Christian"},{"full_name":"Bobbert, Mathias","id":"7850","last_name":"Bobbert","first_name":"Mathias"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","id":"32056","full_name":"Meschut, Gerson"},{"last_name":"Mergheim","full_name":"Mergheim, Julia","first_name":"Julia"},{"full_name":"Steinmann, Paul","last_name":"Steinmann","first_name":"Paul"}],"doi":"10.3390/jmmp8040157","publication_identifier":{"issn":["2504-4494"]},"publication_status":"published","intvolume":"         8","citation":{"short":"J. Friedlein, M. Böhnke, M.C. Schlichter, M. Bobbert, G. Meschut, J. Mergheim, P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024).","bibtex":"@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024, title={Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>}, number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024} }","mla":"Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, 157, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>.","apa":"Friedlein, J., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Mergheim, J., &#38; Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>, <i>8</i>(4), Article 157. <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>","ieee":"J. Friedlein <i>et al.</i>, “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 8, no. 4, Art. no. 157, 2024, doi: <a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>.","chicago":"Friedlein, Johannes, Max Böhnke, Malte Christian Schlichter, Mathias Bobbert, Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” <i>Journal of Manufacturing and Materials Processing</i> 8, no. 4 (2024). <a href=\"https://doi.org/10.3390/jmmp8040157\">https://doi.org/10.3390/jmmp8040157</a>.","ama":"Friedlein J, Böhnke M, Schlichter MC, et al. Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. <i>Journal of Manufacturing and Materials Processing</i>. 2024;8(4). doi:<a href=\"https://doi.org/10.3390/jmmp8040157\">10.3390/jmmp8040157</a>"},"_id":"59585","project":[{"name":"TRR 285 - A: TRR 285 - Project Area A","_id":"131"},{"_id":"135","name":"TRR 285 – A01: TRR 285 - Subproject A01"}],"department":[{"_id":"157"}],"user_id":"61977","article_number":"157","type":"journal_article","status":"public","publisher":"MDPI AG","date_created":"2025-04-15T11:07:52Z","title":"Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining","quality_controlled":"1","issue":"4","year":"2024","language":[{"iso":"eng"}],"publication":"Journal of Manufacturing and Materials Processing","abstract":[{"lang":"eng","text":"<jats:p>Similar to bulk metal forming, clinch joining is characterised by large plastic deformations and a variety of different 3D stress states, including severe compression. However, inherent to plastic forming is the nucleation and growth of defects, whose detrimental effects on the material behaviour can be described by continuum damage models and eventually lead to material failure. As the damage evolution strongly depends on the stress state, a stress-state-dependent model is utilised to correctly track the accumulation. To formulate and parameterise this model, besides classical experiments, so-called modified punch tests are also integrated herein to enhance the calibration of the failure model by capturing a larger range of stress states and metal-forming-specific loading conditions. Moreover, when highly ductile materials are considered, such as the dual-phase steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong necking and localisation might occur prior to fracture. This can alter the stress state and affect the actual strain at failure. This influence is captured by coupling plasticity and damage to incorporate the damage-induced softening effect. Its relative importance is shown by conducting inverse parameter identifications to determine damage and failure parameters for both mentioned ductile metals based on up to 12 different experiments.</jats:p>"}]},{"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials"],"language":[{"iso":"eng"}],"publication":"Journal of Manufacturing and Materials Processing","abstract":[{"lang":"eng","text":"<jats:p>Multi-material designs (MMD) are more frequently used in the automotive industry. Hereby, the combination of different materials, metal sheets, or cast components, is mechanically joined, often by forming joining processes. The cast components mostly used are high-strength, age-hardenable aluminium alloys of the Al–Si system. Here, the low ductility of the AlSi alloys constitutes a challenge because their brittle nature causes cracks during the joining process. However, by using suitable solidification conditions, it is possible to achieve a microstructure with improved mechanical and joining properties. For this study, we used the twin-roll casting process (TRC) with water-cooled rollers to manufacture the hypoeutectic AlSi10Mg for the first time. Hereby, high solidification rates are realisable, which introduces a microstructure that is about four times finer than in the sand casting process. In particular, it is shown that a fine microstructure close to the modification with Na or Sr is achieved by the high solidification rate in the TRC process without using these elements. Based on this, the mechanical properties increase, and especially the ductility is enhanced. Subsequent joining investigations validate the positive influence of a high solidification rate since cracks in joints can be avoided. Finally, a microstructure-property-joint suitability correlation is presented.</jats:p>"}],"publisher":"MDPI AG","date_created":"2024-03-08T16:09:27Z","title":"Mechanical and Microstructure Characterisation of the Hypoeutectic Cast Aluminium Alloy AlSi10Mg Manufactured by the Twin-Roll Casting Process","quality_controlled":"1","issue":"4","year":"2023","project":[{"_id":"136","name":"TRR 285 – A02: TRR 285 - Subproject A02"}],"_id":"52405","user_id":"32340","department":[{"_id":"158"}],"article_number":"132","type":"journal_article","status":"public","date_updated":"2024-03-14T15:21:38Z","author":[{"last_name":"Neuser","id":"32340","full_name":"Neuser, Moritz","first_name":"Moritz"},{"full_name":"Schaper, Mirko","id":"43720","last_name":"Schaper","first_name":"Mirko"},{"first_name":"Olexandr","last_name":"Grydin","full_name":"Grydin, Olexandr","id":"43822"}],"volume":7,"doi":"10.3390/jmmp7040132","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"citation":{"short":"M. Neuser, M. Schaper, O. Grydin, Journal of Manufacturing and Materials Processing 7 (2023).","mla":"Neuser, Moritz, et al. “Mechanical and Microstructure Characterisation of the Hypoeutectic Cast Aluminium Alloy AlSi10Mg Manufactured by the Twin-Roll Casting Process.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 4, 132, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/jmmp7040132\">10.3390/jmmp7040132</a>.","bibtex":"@article{Neuser_Schaper_Grydin_2023, title={Mechanical and Microstructure Characterisation of the Hypoeutectic Cast Aluminium Alloy AlSi10Mg Manufactured by the Twin-Roll Casting Process}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/jmmp7040132\">10.3390/jmmp7040132</a>}, number={4132}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Neuser, Moritz and Schaper, Mirko and Grydin, Olexandr}, year={2023} }","apa":"Neuser, M., Schaper, M., &#38; Grydin, O. (2023). Mechanical and Microstructure Characterisation of the Hypoeutectic Cast Aluminium Alloy AlSi10Mg Manufactured by the Twin-Roll Casting Process. <i>Journal of Manufacturing and Materials Processing</i>, <i>7</i>(4), Article 132. <a href=\"https://doi.org/10.3390/jmmp7040132\">https://doi.org/10.3390/jmmp7040132</a>","chicago":"Neuser, Moritz, Mirko Schaper, and Olexandr Grydin. “Mechanical and Microstructure Characterisation of the Hypoeutectic Cast Aluminium Alloy AlSi10Mg Manufactured by the Twin-Roll Casting Process.” <i>Journal of Manufacturing and Materials Processing</i> 7, no. 4 (2023). <a href=\"https://doi.org/10.3390/jmmp7040132\">https://doi.org/10.3390/jmmp7040132</a>.","ieee":"M. Neuser, M. Schaper, and O. Grydin, “Mechanical and Microstructure Characterisation of the Hypoeutectic Cast Aluminium Alloy AlSi10Mg Manufactured by the Twin-Roll Casting Process,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 4, Art. no. 132, 2023, doi: <a href=\"https://doi.org/10.3390/jmmp7040132\">10.3390/jmmp7040132</a>.","ama":"Neuser M, Schaper M, Grydin O. Mechanical and Microstructure Characterisation of the Hypoeutectic Cast Aluminium Alloy AlSi10Mg Manufactured by the Twin-Roll Casting Process. <i>Journal of Manufacturing and Materials Processing</i>. 2023;7(4). doi:<a href=\"https://doi.org/10.3390/jmmp7040132\">10.3390/jmmp7040132</a>"},"intvolume":"         7"},{"language":[{"iso":"eng"}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials"],"publication":"Journal of Manufacturing and Materials Processing","abstract":[{"text":"<jats:p>Consistent lightweight construction in the area of vehicle manufacturing requires the increased use of multi-material combinations. This, in turn, requires an adaptation of standard joining techniques. In multi-material combinations, the importance of integral cast components, in particular, is increasing and poses additional technical challenges for the industry. One approach to solve these challenges is adaptable joining elements manufactured by a thermomechanical forming process. By applying an incremental and thermomechanical joining process, it is possible to react immediately and adapt the joining process inline to reduce the number of different joining elements. In the investigation described in this publication, cast plates made of the cast aluminium alloy EN AC-AlSi9 serve as joining partners, which are processed by sand casting. The joining process of hypoeutectic AlSi alloys is challenging as their brittle character leads to cracks in the joint during conventional mechanical joining. To solve this, the frictional heat of the novel joining process applied can provide a finer microstructure in the hypoeutectic AlSi9 cast alloy. In detail, its Si is finer-grained, resulting in higher ductility of the joint. This study reveals the thermomechanical joining suitability of a hypoeutectic cast aluminium alloy in combination with adaptively manufactured auxiliary joining elements.</jats:p>","lang":"eng"}],"date_created":"2023-10-02T06:46:53Z","publisher":"MDPI AG","title":"Thermomechanical Joining of Hypoeutectic Aluminium Cast Plates","issue":"5","quality_controlled":"1","year":"2023","user_id":"32340","department":[{"_id":"156"},{"_id":"158"}],"project":[{"name":"TRR 285 – C03: TRR 285 - Subproject C03","_id":"147"},{"name":"TRR 285 – A02: TRR 285 - Subproject A02","_id":"136"}],"_id":"47535","article_type":"original","article_number":"169","type":"journal_article","status":"public","author":[{"first_name":"Thomas","full_name":"Borgert, Thomas","id":"83141","last_name":"Borgert"},{"full_name":"Neuser, Moritz","id":"32340","last_name":"Neuser","first_name":"Moritz"},{"full_name":"Hoyer, Kay-Peter","id":"48411","last_name":"Hoyer","first_name":"Kay-Peter"},{"full_name":"Homberg, Werner","id":"233","last_name":"Homberg","first_name":"Werner"},{"first_name":"Mirko","full_name":"Schaper, Mirko","id":"43720","last_name":"Schaper"}],"volume":7,"date_updated":"2024-03-14T15:22:06Z","doi":"10.3390/jmmp7050169","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"citation":{"apa":"Borgert, T., Neuser, M., Hoyer, K.-P., Homberg, W., &#38; Schaper, M. (2023). Thermomechanical Joining of Hypoeutectic Aluminium Cast Plates. <i>Journal of Manufacturing and Materials Processing</i>, <i>7</i>(5), Article 169. <a href=\"https://doi.org/10.3390/jmmp7050169\">https://doi.org/10.3390/jmmp7050169</a>","short":"T. Borgert, M. Neuser, K.-P. Hoyer, W. Homberg, M. Schaper, Journal of Manufacturing and Materials Processing 7 (2023).","mla":"Borgert, Thomas, et al. “Thermomechanical Joining of Hypoeutectic Aluminium Cast Plates.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 5, 169, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/jmmp7050169\">10.3390/jmmp7050169</a>.","bibtex":"@article{Borgert_Neuser_Hoyer_Homberg_Schaper_2023, title={Thermomechanical Joining of Hypoeutectic Aluminium Cast Plates}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/jmmp7050169\">10.3390/jmmp7050169</a>}, number={5169}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Borgert, Thomas and Neuser, Moritz and Hoyer, Kay-Peter and Homberg, Werner and Schaper, Mirko}, year={2023} }","ama":"Borgert T, Neuser M, Hoyer K-P, Homberg W, Schaper M. Thermomechanical Joining of Hypoeutectic Aluminium Cast Plates. <i>Journal of Manufacturing and Materials Processing</i>. 2023;7(5). doi:<a href=\"https://doi.org/10.3390/jmmp7050169\">10.3390/jmmp7050169</a>","chicago":"Borgert, Thomas, Moritz Neuser, Kay-Peter Hoyer, Werner Homberg, and Mirko Schaper. “Thermomechanical Joining of Hypoeutectic Aluminium Cast Plates.” <i>Journal of Manufacturing and Materials Processing</i> 7, no. 5 (2023). <a href=\"https://doi.org/10.3390/jmmp7050169\">https://doi.org/10.3390/jmmp7050169</a>.","ieee":"T. Borgert, M. Neuser, K.-P. Hoyer, W. Homberg, and M. Schaper, “Thermomechanical Joining of Hypoeutectic Aluminium Cast Plates,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 5, Art. no. 169, 2023, doi: <a href=\"https://doi.org/10.3390/jmmp7050169\">10.3390/jmmp7050169</a>."},"intvolume":"         7"},{"author":[{"last_name":"Knyazyev","full_name":"Knyazyev, Mykhaylo","first_name":"Mykhaylo"},{"first_name":"Maik","last_name":"Holzmüller","full_name":"Holzmüller, Maik","id":"82645"},{"id":"233","full_name":"Homberg, Werner","last_name":"Homberg","first_name":"Werner"}],"volume":7,"date_updated":"2023-05-02T11:40:35Z","doi":"10.3390/jmmp7010040","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"citation":{"chicago":"Knyazyev, Mykhaylo, Maik Holzmüller, and Werner Homberg. “Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires.” <i>Journal of Manufacturing and Materials Processing</i> 7, no. 1 (2023). <a href=\"https://doi.org/10.3390/jmmp7010040\">https://doi.org/10.3390/jmmp7010040</a>.","ieee":"M. Knyazyev, M. Holzmüller, and W. Homberg, “Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 1, Art. no. 40, 2023, doi: <a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>.","ama":"Knyazyev M, Holzmüller M, Homberg W. Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires. <i>Journal of Manufacturing and Materials Processing</i>. 2023;7(1). doi:<a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>","bibtex":"@article{Knyazyev_Holzmüller_Homberg_2023, title={Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>}, number={140}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Knyazyev, Mykhaylo and Holzmüller, Maik and Homberg, Werner}, year={2023} }","short":"M. Knyazyev, M. Holzmüller, W. Homberg, Journal of Manufacturing and Materials Processing 7 (2023).","mla":"Knyazyev, Mykhaylo, et al. “Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 1, 40, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/jmmp7010040\">10.3390/jmmp7010040</a>.","apa":"Knyazyev, M., Holzmüller, M., &#38; Homberg, W. (2023). Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires. <i>Journal of Manufacturing and Materials Processing</i>, <i>7</i>(1), Article 40. <a href=\"https://doi.org/10.3390/jmmp7010040\">https://doi.org/10.3390/jmmp7010040</a>"},"intvolume":"         7","user_id":"82645","department":[{"_id":"156"}],"_id":"43045","article_number":"40","type":"journal_article","status":"public","date_created":"2023-03-17T10:31:23Z","publisher":"MDPI AG","title":"Investigation of Pressure Fields Generated by Two Simultaneous Discharges in Liquid Initiated by Wires","issue":"1","quality_controlled":"1","year":"2023","language":[{"iso":"eng"}],"keyword":["impulse","forming","electrohydraulic","discharge","wire","pressure gauge","pressure field"],"publication":"Journal of Manufacturing and Materials Processing","abstract":[{"lang":"eng","text":"<jats:p>The pressure fields generated by two simultaneous discharges have not been investigated on any notable scale for the electrohydraulic impulse forming method. In this study, the synchronicity of two discharges is ensured by the sequential connection of two wires mounted in two spark gaps in a common volume of liquid. The objective is to experimentally confirm the equilibrium of the energies evolved in two spark gaps by means of pressure measurements. In addition, multipoint membrane pressure gauges demonstrated the feasibility of easily recording detailed pressure maps. Based on the membrane deformation mechanism and material strengthening under static and impulse conditions, the processing procedure is further developed so as to achieve better accuracy in the determination of pressure field parameters. The practical equality of the pressure fields on the left and right halves of the flat-loaded area confirms the equality of energies evolved in the two spark gaps. The direct shock waves create zones with the most intensive loading. These results provide a basis for the development of new electrohydraulic technologies involving the application of two simultaneous discharges with equal energy and pressure parameters.</jats:p>"}]},{"type":"journal_article","status":"public","user_id":"83141","department":[{"_id":"156"}],"project":[{"_id":"147","name":"TRR 285 – C03: TRR 285 - Subproject C03"}],"_id":"46483","article_number":"147","article_type":"original","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"citation":{"apa":"Borgert, T., Henke, M., &#38; Homberg, W. (2023). Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements. <i>Journal of Manufacturing and Materials Processing</i>, <i>7</i>(4), Article 147. <a href=\"https://doi.org/10.3390/jmmp7040147\">https://doi.org/10.3390/jmmp7040147</a>","short":"T. Borgert, M. Henke, W. Homberg, Journal of Manufacturing and Materials Processing 7 (2023).","bibtex":"@article{Borgert_Henke_Homberg_2023, title={Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/jmmp7040147\">10.3390/jmmp7040147</a>}, number={4147}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Borgert, Thomas and Henke, Maximilian and Homberg, Werner}, year={2023} }","mla":"Borgert, Thomas, et al. “Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 4, 147, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/jmmp7040147\">10.3390/jmmp7040147</a>.","ieee":"T. Borgert, M. Henke, and W. Homberg, “Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 4, Art. no. 147, 2023, doi: <a href=\"https://doi.org/10.3390/jmmp7040147\">10.3390/jmmp7040147</a>.","chicago":"Borgert, Thomas, Maximilian Henke, and Werner Homberg. “Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements.” <i>Journal of Manufacturing and Materials Processing</i> 7, no. 4 (2023). <a href=\"https://doi.org/10.3390/jmmp7040147\">https://doi.org/10.3390/jmmp7040147</a>.","ama":"Borgert T, Henke M, Homberg W. Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements. <i>Journal of Manufacturing and Materials Processing</i>. 2023;7(4). doi:<a href=\"https://doi.org/10.3390/jmmp7040147\">10.3390/jmmp7040147</a>"},"intvolume":"         7","author":[{"full_name":"Borgert, Thomas","id":"83141","last_name":"Borgert","first_name":"Thomas"},{"first_name":"Maximilian","full_name":"Henke, Maximilian","last_name":"Henke"},{"last_name":"Homberg","id":"233","full_name":"Homberg, Werner","first_name":"Werner"}],"volume":7,"date_updated":"2023-08-31T13:33:05Z","doi":"10.3390/jmmp7040147","publication":"Journal of Manufacturing and Materials Processing","abstract":[{"text":"<jats:p>The demands on joining technology are constantly increasing due to the consistent lightweight construction and the associated increasing material mix. To meet these requirements, the adaptability of the joining processes must be improved to be able to process different material combinations and to react to challenges caused by deviations in the process chain. One example of a highly adaptable process due to the two-step process sequence is thermomechanical joining with Friction Spun Joint Connectors (FSJCs) that can be individually adapted to the joint. In this paper, the potentials of the adaption in the two-stage joining process with aluminium auxiliary joining elements are investigated. To this end, it is first investigated whether a thermomechanical forming process can be used to achieve a uniform and controlled manufacturing regarding the process variable of the temperature as well as the geometry of the FSJC. Based on the successful proof of the high and good repeatability in the FSJC manufacturing, possibilities, and potentials for the targeted influencing of the process and FSJC geometry are shown, based on an extensive variation of the process input variables (delivery condition and thus mechanical properties of the raw parts as well as the process parameters of rotational speed and feed rate). Here it can be shown that above all, the feed rate of the final forming process has the strongest influence on the process and thus also offers the strongest possibilities for influencing it.</jats:p>","lang":"eng"}],"language":[{"iso":"eng"}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials"],"issue":"4","quality_controlled":"1","year":"2023","date_created":"2023-08-14T06:42:25Z","publisher":"MDPI AG","title":"Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements"},{"quality_controlled":"1","issue":"6","year":"2023","publisher":"MDPI AG","date_created":"2023-11-02T07:58:35Z","title":"Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets","publication":"Journal of Manufacturing and Materials Processing","abstract":[{"lang":"eng","text":"The sustainability of the manufacturing industry is of special importance to increase the protection of the environment. The production of fasteners like self-piercing rivets, however, is costly, time-consuming and energy-intensive. The heat treatment and the coating, which are mandatory in conventional self-piercing rivets to achieve adequate strength, ductility and corrosion resistance, are especially crucial in this respect. Within this paper, an approach for an increase in the sustainability in fastener production is presented. The use of alternative, high strain hardening stainless steels as rivet material enables a shortening of the process chain, because post treatment of the rivets after they are formed can be omitted. As the change in rivet material and processing causes some issues along the process chain, the focus of this paper is on the holistic evaluation of the challenges within the forming of high strain hardening steel and the impact of the changed rivet properties on the joining result."}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials"],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"citation":{"apa":"Uhe, B., Kuball, C.-M., Merklein, M., &#38; Meschut, G. (2023). Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets. <i>Journal of Manufacturing and Materials Processing</i>, <i>7</i>(6), Article 193. <a href=\"https://doi.org/10.3390/jmmp7060193\">https://doi.org/10.3390/jmmp7060193</a>","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Journal of Manufacturing and Materials Processing 7 (2023).","mla":"Uhe, Benedikt, et al. “Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 6, 193, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>.","bibtex":"@article{Uhe_Kuball_Merklein_Meschut_2023, title={Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>}, number={6193}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2023} }","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets. <i>Journal of Manufacturing and Materials Processing</i>. 2023;7(6). doi:<a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>","chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets.” <i>Journal of Manufacturing and Materials Processing</i> 7, no. 6 (2023). <a href=\"https://doi.org/10.3390/jmmp7060193\">https://doi.org/10.3390/jmmp7060193</a>.","ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 6, Art. no. 193, 2023, doi: <a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>."},"intvolume":"         7","date_updated":"2026-02-27T10:16:17Z","author":[{"first_name":"Benedikt","full_name":"Uhe, Benedikt","id":"38131","last_name":"Uhe"},{"full_name":"Kuball, Clara-Maria","last_name":"Kuball","first_name":"Clara-Maria"},{"first_name":"Marion","full_name":"Merklein, Marion","last_name":"Merklein"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"}],"volume":7,"doi":"10.3390/jmmp7060193","type":"journal_article","status":"public","_id":"48584","user_id":"38131","department":[{"_id":"157"}],"article_number":"193"},{"title":"Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets","publisher":"MDPI AG","date_created":"2026-02-27T10:11:02Z","year":"2023","quality_controlled":"1","issue":"6","language":[{"iso":"eng"}],"abstract":[{"text":"The sustainability of the manufacturing industry is of special importance to increase the protection of the environment. The production of fasteners like self-piercing rivets, however, is costly, time-consuming and energy-intensive. The heat treatment and the coating, which are mandatory in conventional self-piercing rivets to achieve adequate strength, ductility and corrosion resistance, are especially crucial in this respect. Within this paper, an approach for an increase in the sustainability in fastener production is presented. The use of alternative, high strain hardening stainless steels as rivet material enables a shortening of the process chain, because post treatment of the rivets after they are formed can be omitted. As the change in rivet material and processing causes some issues along the process chain, the focus of this paper is on the holistic evaluation of the challenges within the forming of high strain hardening steel and the impact of the changed rivet properties on the joining result.","lang":"eng"}],"publication":"Journal of Manufacturing and Materials Processing","doi":"10.3390/jmmp7060193","date_updated":"2026-02-27T10:13:37Z","author":[{"first_name":"Benedikt","last_name":"Uhe","id":"38131","full_name":"Uhe, Benedikt"},{"full_name":"Kuball, Clara-Maria","last_name":"Kuball","first_name":"Clara-Maria"},{"full_name":"Merklein, Marion","last_name":"Merklein","first_name":"Marion"},{"first_name":"Gerson","id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246"}],"volume":7,"citation":{"ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets. <i>Journal of Manufacturing and Materials Processing</i>. 2023;7(6). doi:<a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>","ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 6, Art. no. 193, 2023, doi: <a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>.","chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets.” <i>Journal of Manufacturing and Materials Processing</i> 7, no. 6 (2023). <a href=\"https://doi.org/10.3390/jmmp7060193\">https://doi.org/10.3390/jmmp7060193</a>.","bibtex":"@article{Uhe_Kuball_Merklein_Meschut_2023, title={Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets}, volume={7}, DOI={<a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>}, number={6193}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2023} }","mla":"Uhe, Benedikt, et al. “Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 7, no. 6, 193, MDPI AG, 2023, doi:<a href=\"https://doi.org/10.3390/jmmp7060193\">10.3390/jmmp7060193</a>.","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Journal of Manufacturing and Materials Processing 7 (2023).","apa":"Uhe, B., Kuball, C.-M., Merklein, M., &#38; Meschut, G. (2023). Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets. <i>Journal of Manufacturing and Materials Processing</i>, <i>7</i>(6), Article 193. <a href=\"https://doi.org/10.3390/jmmp7060193\">https://doi.org/10.3390/jmmp7060193</a>"},"intvolume":"         7","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"article_number":"193","_id":"64777","user_id":"53912","status":"public","type":"journal_article"},{"doi":"10.3390/jmmp6050122","main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2504-4494/6/5/122"}],"title":"Robustness Analysis of Pin Joining","volume":6,"author":[{"last_name":"Römisch","full_name":"Römisch, David","first_name":"David"},{"first_name":"Christoph","last_name":"Zirngibl","full_name":"Zirngibl, Christoph"},{"first_name":"Benjamin","full_name":"Schleich, Benjamin","last_name":"Schleich"},{"first_name":"Sandro","last_name":"Wartzack","full_name":"Wartzack, Sandro"},{"first_name":"Marion","full_name":"Merklein, Marion","last_name":"Merklein"}],"date_created":"2022-12-06T19:03:30Z","oa":"1","publisher":"MDPI AG","date_updated":"2023-01-02T11:01:05Z","intvolume":"         6","citation":{"ama":"Römisch D, Zirngibl C, Schleich B, Wartzack S, Merklein M. Robustness Analysis of Pin Joining. <i>Journal of Manufacturing and Materials Processing</i>. 2022;6(5). doi:<a href=\"https://doi.org/10.3390/jmmp6050122\">10.3390/jmmp6050122</a>","ieee":"D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, and M. Merklein, “Robustness Analysis of Pin Joining,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 6, no. 5, Art. no. 122, 2022, doi: <a href=\"https://doi.org/10.3390/jmmp6050122\">10.3390/jmmp6050122</a>.","chicago":"Römisch, David, Christoph Zirngibl, Benjamin Schleich, Sandro Wartzack, and Marion Merklein. “Robustness Analysis of Pin Joining.” <i>Journal of Manufacturing and Materials Processing</i> 6, no. 5 (2022). <a href=\"https://doi.org/10.3390/jmmp6050122\">https://doi.org/10.3390/jmmp6050122</a>.","apa":"Römisch, D., Zirngibl, C., Schleich, B., Wartzack, S., &#38; Merklein, M. (2022). Robustness Analysis of Pin Joining. <i>Journal of Manufacturing and Materials Processing</i>, <i>6</i>(5), Article 122. <a href=\"https://doi.org/10.3390/jmmp6050122\">https://doi.org/10.3390/jmmp6050122</a>","bibtex":"@article{Römisch_Zirngibl_Schleich_Wartzack_Merklein_2022, title={Robustness Analysis of Pin Joining}, volume={6}, DOI={<a href=\"https://doi.org/10.3390/jmmp6050122\">10.3390/jmmp6050122</a>}, number={5122}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Römisch, David and Zirngibl, Christoph and Schleich, Benjamin and Wartzack, Sandro and Merklein, Marion}, year={2022} }","short":"D. Römisch, C. Zirngibl, B. Schleich, S. Wartzack, M. Merklein, Journal of Manufacturing and Materials Processing 6 (2022).","mla":"Römisch, David, et al. “Robustness Analysis of Pin Joining.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 6, no. 5, 122, MDPI AG, 2022, doi:<a href=\"https://doi.org/10.3390/jmmp6050122\">10.3390/jmmp6050122</a>."},"year":"2022","issue":"5","publication_identifier":{"issn":["2504-4494"]},"publication_status":"published","language":[{"iso":"eng"}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials"],"article_number":"122","department":[{"_id":"630"}],"user_id":"14931","_id":"34249","project":[{"_id":"130","name":"TRR 285: TRR 285","grant_number":"418701707"},{"name":"TRR 285 - B: TRR 285 - Project Area B","_id":"132"},{"name":"TRR 285 – B05: TRR 285 - Subproject B05","_id":"144"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C01: TRR 285 - Subproject C01","_id":"145"}],"status":"public","abstract":[{"lang":"eng","text":"The trend towards lightweight design, driven by increasingly stringent emission targets, poses challenges to conventional joining processes due to the different mechanical properties of the joining partners used to manufacture multi-material systems. For this reason, new versatile joining processes are in demand for joining dissimilar materials. In this regard, pin joining with cold extruded pin structures is a relatively new, two-stage joining process for joining materials such as high-strength steel and aluminium as well as steel and fibre-reinforced plastic to multi-material systems, without the need for auxiliary elements. Due to the novelty of the process, there are currently only a few studies on the robustness of this joining process available. Thus, limited statements on the stability of the joining process considering uncertain process conditions, such as varying material properties or friction values, can be provided. Motivated by this, the presented work investigates the influence of different uncertain process parameters on the pin extrusion as well as on the joining process itself, carrying out a systematic robustness analysis. Therefore, the methodical approach covers the complete process chain of pin joining, including the load-bearing capacity of the joint by means of numerical simulation and data-driven methods. Thereby, a deeper understanding of the pin joining process is generated and the versatility of the novel joining process is increased. Additionally, the provision of manufacturing recommendations for the forming of pin joints leads to a significant decrease in the failure probability caused by ploughing or buckling effects."}],"publication":"Journal of Manufacturing and Materials Processing","type":"journal_article"},{"publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"citation":{"chicago":"Borowski, Andreas, Benjamin Gröger, René Füßel, and Maik Gude. “Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions.” <i>Journal of Manufacturing and Materials Processing</i> 6, no. 6 (2022). <a href=\"https://doi.org/10.3390/jmmp6060146\">https://doi.org/10.3390/jmmp6060146</a>.","ieee":"A. Borowski, B. Gröger, R. Füßel, and M. Gude, “Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 6, no. 6, Art. no. 146, 2022, doi: <a href=\"https://doi.org/10.3390/jmmp6060146\">10.3390/jmmp6060146</a>.","ama":"Borowski A, Gröger B, Füßel R, Gude M. Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions. <i>Journal of Manufacturing and Materials Processing</i>. 2022;6(6). doi:<a href=\"https://doi.org/10.3390/jmmp6060146\">10.3390/jmmp6060146</a>","apa":"Borowski, A., Gröger, B., Füßel, R., &#38; Gude, M. (2022). Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions. <i>Journal of Manufacturing and Materials Processing</i>, <i>6</i>(6), Article 146. <a href=\"https://doi.org/10.3390/jmmp6060146\">https://doi.org/10.3390/jmmp6060146</a>","short":"A. Borowski, B. Gröger, R. Füßel, M. Gude, Journal of Manufacturing and Materials Processing 6 (2022).","bibtex":"@article{Borowski_Gröger_Füßel_Gude_2022, title={Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions}, volume={6}, DOI={<a href=\"https://doi.org/10.3390/jmmp6060146\">10.3390/jmmp6060146</a>}, number={6146}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Borowski, Andreas and Gröger, Benjamin and Füßel, René and Gude, Maik}, year={2022} }","mla":"Borowski, Andreas, et al. “Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 6, no. 6, 146, MDPI AG, 2022, doi:<a href=\"https://doi.org/10.3390/jmmp6060146\">10.3390/jmmp6060146</a>."},"intvolume":"         6","date_updated":"2023-01-02T11:05:02Z","oa":"1","author":[{"first_name":"Andreas","last_name":"Borowski","full_name":"Borowski, Andreas"},{"last_name":"Gröger","full_name":"Gröger, Benjamin","first_name":"Benjamin"},{"last_name":"Füßel","full_name":"Füßel, René","first_name":"René"},{"last_name":"Gude","full_name":"Gude, Maik","first_name":"Maik"}],"volume":6,"main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2504-4494/6/6/146"}],"doi":"10.3390/jmmp6060146","type":"journal_article","status":"public","project":[{"name":"TRR 285: TRR 285","_id":"130","grant_number":"418701707"},{"_id":"131","name":"TRR 285 - A: TRR 285 - Project Area A"},{"_id":"137","name":"TRR 285 – A03: TRR 285 - Subproject A03"}],"_id":"34255","user_id":"14931","department":[{"_id":"630"}],"article_number":"146","issue":"6","year":"2022","publisher":"MDPI AG","date_created":"2022-12-06T20:38:11Z","title":"Characterisation of Fibre Bundle Deformation Behaviour—Test Rig, Results and Conclusions","publication":"Journal of Manufacturing and Materials Processing","abstract":[{"lang":"eng","text":"Deformation of continuous fibre reinforced plastics during thermally-assisted forming or joining processes leads to a change of the initial material structure. The load behaviour of composite parts strongly depends on the resultant material structure. The prediction of this material structure is a challenging task and requires a deep knowledge of the material behaviour above melting temperature and the occurring complex forming phenomena. Through this knowledge, the optimisation of manufacturing parameters for a more efficient and reproducible process can be enabled and are in the focus of many investigations. In the present paper, a simplified pultrusion test rig is developed and presented to investigate the deformation behaviour of a thermoplastic semi-finished fiber product in a forming element. Therefore, different process parameters, like forming element temperature, pulling velocity as well as the forming element geometry, are varied. The deformation behaviour in the forming zone of the thermoplastic preimpregnated continuous glass fibre-reinforced material is investigated by computed tomography and the resultant pulling forces are measured. The results clearly show the correlation between the forming element temperature and the resulting forces due to a change in the viscosity of the thermoplastic matrix and the resulting fiber matrix interaction. In addition, the evaluation of the measurement data shows which forming forces are required to change the shape of the thermoplastic unidirectional material with a rectangular cross-section to a round one."}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials"],"language":[{"iso":"eng"}]},{"abstract":[{"text":"Pin extrusion is a common process to realise pin structures in different geometrical dimensions for a subsequent joining operation. Nevertheless, the process of pin extrusion offers process limits regarding sheet thinning as a consequence of the punch penetration depth into the sheet. Thereby, cracks at the residual sheet thickness can occur during strength tests, resulting in a failure of the complete joint due to severe thinning. Therefore, measures have to be taken into account to reduce the thinning. One possibility is the application of orbital formed tailored blanks with a local material pre-distribution, which allows a higher sheet thickness in the desired area. Within this contribution, the novel approach of a process combination of orbital forming and pin extrusion is investigated. To reveal the potential of a local material pre-distribution, conventional specimens are compared with previously orbital formed components. Relevant parameters such as the residual sheet thickness, the pin height as well as the average hardness values are compared. The results show a significant positive influence of a local material pre-distribution on the residual sheet thickness as well as the resulting pin height. Furthermore, the strain hardening during orbital forming can be seen as an additional advantage. To conclude the results, the process limits of conventional pin extrusion can be expanded significantly by the application of specimens with a local material pre-distribution.","lang":"eng"}],"publication":"Journal of Manufacturing and Materials Processing","language":[{"iso":"eng"}],"keyword":["Industrial and Manufacturing Engineering","Mechanical Engineering","Mechanics of Materials"],"year":"2022","issue":"6","title":"Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution","date_created":"2022-12-06T18:56:24Z","publisher":"MDPI AG","status":"public","type":"journal_article","article_number":"127","user_id":"14931","department":[{"_id":"630"}],"project":[{"grant_number":"418701707","_id":"130","name":"TRR 285: TRR 285"},{"name":"TRR 285 - C: TRR 285 - Project Area C","_id":"133"},{"name":"TRR 285 – C01: TRR 285 - Subproject C01","_id":"145"},{"_id":"146","name":"TRR 285 – C02: TRR 285 - Subproject C02"}],"_id":"34248","citation":{"apa":"Römisch, D., Hetzel, A., Wituschek, S., Lechner, M., &#38; Merklein, M. (2022). Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution. <i>Journal of Manufacturing and Materials Processing</i>, <i>6</i>(6), Article 127. <a href=\"https://doi.org/10.3390/jmmp6060127\">https://doi.org/10.3390/jmmp6060127</a>","mla":"Römisch, David, et al. “Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution.” <i>Journal of Manufacturing and Materials Processing</i>, vol. 6, no. 6, 127, MDPI AG, 2022, doi:<a href=\"https://doi.org/10.3390/jmmp6060127\">10.3390/jmmp6060127</a>.","bibtex":"@article{Römisch_Hetzel_Wituschek_Lechner_Merklein_2022, title={Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution}, volume={6}, DOI={<a href=\"https://doi.org/10.3390/jmmp6060127\">10.3390/jmmp6060127</a>}, number={6127}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Römisch, David and Hetzel, Andreas and Wituschek, Simon and Lechner, Michael and Merklein, Marion}, year={2022} }","short":"D. Römisch, A. Hetzel, S. Wituschek, M. Lechner, M. Merklein, Journal of Manufacturing and Materials Processing 6 (2022).","chicago":"Römisch, David, Andreas Hetzel, Simon Wituschek, Michael Lechner, and Marion Merklein. “Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution.” <i>Journal of Manufacturing and Materials Processing</i> 6, no. 6 (2022). <a href=\"https://doi.org/10.3390/jmmp6060127\">https://doi.org/10.3390/jmmp6060127</a>.","ieee":"D. Römisch, A. Hetzel, S. Wituschek, M. Lechner, and M. Merklein, “Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution,” <i>Journal of Manufacturing and Materials Processing</i>, vol. 6, no. 6, Art. no. 127, 2022, doi: <a href=\"https://doi.org/10.3390/jmmp6060127\">10.3390/jmmp6060127</a>.","ama":"Römisch D, Hetzel A, Wituschek S, Lechner M, Merklein M. Pin Extrusion for Mechanical Joining from Orbital Formed Tailored Blanks with Local Material Pre-Distribution. <i>Journal of Manufacturing and Materials Processing</i>. 2022;6(6). doi:<a href=\"https://doi.org/10.3390/jmmp6060127\">10.3390/jmmp6060127</a>"},"intvolume":"         6","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"main_file_link":[{"open_access":"1"}],"doi":"10.3390/jmmp6060127","author":[{"first_name":"David","last_name":"Römisch","full_name":"Römisch, David"},{"first_name":"Andreas","last_name":"Hetzel","full_name":"Hetzel, Andreas"},{"first_name":"Simon","last_name":"Wituschek","full_name":"Wituschek, Simon"},{"first_name":"Michael","full_name":"Lechner, Michael","last_name":"Lechner"},{"first_name":"Marion","full_name":"Merklein, Marion","last_name":"Merklein"}],"volume":6,"oa":"1","date_updated":"2023-01-02T11:01:34Z"}]