[{"article_number":"1053","article_type":"original","funded_apc":"1","file_date_updated":"2025-12-12T13:12:33Z","_id":"63072","department":[{"_id":"158"},{"_id":"321"}],"user_id":"69776","status":"public","type":"journal_article","doi":"10.3390/cryst15121053","main_file_link":[{"open_access":"1","url":"https://doi.org/10.3390/cryst15121053"}],"date_updated":"2025-12-12T14:02:13Z","oa":"1","volume":15,"author":[{"full_name":"Steinmeier, Paul","last_name":"Steinmeier","first_name":"Paul"},{"first_name":"Kay-Peter","full_name":"Hoyer, Kay-Peter","last_name":"Hoyer"},{"last_name":"Lopes Dias","full_name":"Lopes Dias, Nelson Filipe","first_name":"Nelson Filipe"},{"first_name":"Reiner","last_name":"Zielke","full_name":"Zielke, Reiner"},{"full_name":"Tillmann, Wolfgang","last_name":"Tillmann","first_name":"Wolfgang"},{"first_name":"Mirko","last_name":"Schaper","full_name":"Schaper, Mirko"}],"intvolume":"        15","citation":{"ama":"Steinmeier P, Hoyer K-P, Lopes Dias NF, Zielke R, Tillmann W, Schaper M. In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion. <i>Crystals</i>. 2025;15(12). doi:<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>","chicago":"Steinmeier, Paul, Kay-Peter Hoyer, Nelson Filipe Lopes Dias, Reiner Zielke, Wolfgang Tillmann, and Mirko Schaper. “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion.” <i>Crystals</i> 15, no. 12 (2025). <a href=\"https://doi.org/10.3390/cryst15121053\">https://doi.org/10.3390/cryst15121053</a>.","ieee":"P. Steinmeier, K.-P. Hoyer, N. F. Lopes Dias, R. Zielke, W. Tillmann, and M. Schaper, “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion,” <i>Crystals</i>, vol. 15, no. 12, Art. no. 1053, 2025, doi: <a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>.","apa":"Steinmeier, P., Hoyer, K.-P., Lopes Dias, N. F., Zielke, R., Tillmann, W., &#38; Schaper, M. (2025). In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion. <i>Crystals</i>, <i>15</i>(12), Article 1053. <a href=\"https://doi.org/10.3390/cryst15121053\">https://doi.org/10.3390/cryst15121053</a>","mla":"Steinmeier, Paul, et al. “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion.” <i>Crystals</i>, vol. 15, no. 12, 1053, MDPI AG, 2025, doi:<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>.","bibtex":"@article{Steinmeier_Hoyer_Lopes Dias_Zielke_Tillmann_Schaper_2025, title={In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion}, volume={15}, DOI={<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>}, number={121053}, journal={Crystals}, publisher={MDPI AG}, author={Steinmeier, Paul and Hoyer, Kay-Peter and Lopes Dias, Nelson Filipe and Zielke, Reiner and Tillmann, Wolfgang and Schaper, Mirko}, year={2025} }","short":"P. Steinmeier, K.-P. Hoyer, N.F. Lopes Dias, R. Zielke, W. Tillmann, M. Schaper, Crystals 15 (2025)."},"has_accepted_license":"1","publication_identifier":{"issn":["2073-4352"]},"publication_status":"published","keyword":["Biomaterial","In Situ Alloying","Titanium","Additive Manufacturing"],"ddc":["620"],"language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Titanium alloys are widely employed for biomedical implants due to their high strength, biocompatibility, and corrosion resistance, yet their lack of intrinsic antibacterial activity remains a major limitation. Incorporating copper, an antibacterial and β-stabilising element, offers a promising strategy to enhance implant performance. This study investigates Ti-6Al-7Nb modified with 1–9 wt.% Cu via in situ alloying during metal-based laser powder bed fusion (PBF-LB/M), with the aim of assessing processability, microstructural evolution, and mechanical properties. Highly dense samples (&gt;99.9%) were produced across all Cu levels, though chemical homogeneity strongly depended on processing parameters. Increasing Cu content promoted β-phase stabilisation, Ti2Cu precipitation, and pronounced grain refinement. Hardness and yield strength increased nearly linearly with Cu addition, while ductility decreased sharply at ≥5 wt.% Cu due to intermetallic formation, hot cracking, and brittle fracture. These results illustrate both the opportunities and constraints of rapid alloy screening via PBF-LB/M. Overall, moderate Cu additions of 1–3 wt.% provide the most favourable balance between mechanical performance, manufacturability, and potential antibacterial functionality. These findings provide a clear guideline for the design of Cu-functionalised titanium implants and demonstrate the efficiency of in situ alloy screening for accelerated materials development.</jats:p>","lang":"eng"}],"file":[{"success":1,"relation":"main_file","content_type":"application/pdf","file_size":20716652,"access_level":"closed","file_id":"63073","file_name":"crystals-15-01053.pdf","date_updated":"2025-12-12T13:12:33Z","date_created":"2025-12-12T13:12:33Z","creator":"paulstei"}],"publication":"Crystals","title":"In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion","publisher":"MDPI AG","date_created":"2025-12-12T13:11:59Z","year":"2025","quality_controlled":"1","issue":"12"},{"language":[{"iso":"eng"}],"keyword":["Design-for-X","Scenario-Technique","sustainability","uncertainty","Life-Cycle Engineering","Additive Manufacturing","Circular Economy"],"abstract":[{"lang":"eng","text":"New technologies and materials carry significant potential for sustainable production and use of products. As an example, Additive Manufacturing technologies and materials promise lightweight design and energy efficient use of parts. Exhausting the full potential requires: a) consideration of uncertainties with respect to future capabilities, and b) upgradeable design guidelines to cover advancements consistently. The proposed approach merges concepts of Design-for-X with foresight algorithms of Scenario-Technique to derive actionable knowledge. It is validated by an application in the field of Additive Manufacturing, namely Metal Fused Deposition Modelling. Engineers benefit from the intuitive access to heterogeneous types of sustainability related information."}],"publication":"17th CIRP Conference on Intelligent Computation in Manufacturing Engineering","title":"Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique","date_created":"2023-08-08T07:42:04Z","publisher":"Elsevier","year":"2024","quality_controlled":"1","department":[{"_id":"152"},{"_id":"741"}],"user_id":"405","series_title":"Procedia CIRP","_id":"46451","project":[{"_id":"519","name":"BIKINI: BIKINI - Bionik und KI für nachhaltige Integration von Produktentwicklung für einen ressourceneffizienten Leichtbau"}],"status":"public","type":"conference","doi":"10.1016/j.procir.2024.08.238","conference":{"start_date":"2023-07-11","name":"17th CIRP Conference on Intelligent Computation in Manufacturing Engineering","location":"Gulf of Naples","end_date":"2023-07-14"},"main_file_link":[{"open_access":"1"}],"volume":126,"author":[{"full_name":"Gräßler, Iris","id":"47565","orcid":"0000-0001-5765-971X","last_name":"Gräßler","first_name":"Iris"},{"last_name":"Mozgova","id":"95903","full_name":"Mozgova, Iryna","first_name":"Iryna"},{"full_name":"Pottebaum, Jens","id":"405","last_name":"Pottebaum","orcid":"http://orcid.org/0000-0001-8778-2989","first_name":"Jens"},{"first_name":"Manuel","id":"44204","full_name":"Ott, Manuel","last_name":"Ott"},{"last_name":"Jung","full_name":"Jung, Philipp","first_name":"Philipp"},{"last_name":"Hesse","full_name":"Hesse, Philipp","id":"60633","first_name":"Philipp"}],"oa":"1","date_updated":"2024-11-21T10:13:30Z","page":"549-554","intvolume":"       126","citation":{"short":"I. Gräßler, I. Mozgova, J. Pottebaum, M. Ott, P. Jung, P. Hesse, in: 17th CIRP Conference on Intelligent Computation in Manufacturing Engineering, Elsevier, 2024, pp. 549–554.","mla":"Gräßler, Iris, et al. “Handling of Uncertainties in the Design of Sustainable Additive Manufacturing Products by Merging Design-for-X and Scenario-Technique.” <i>17th CIRP Conference on Intelligent Computation in Manufacturing Engineering</i>, vol. 126, Elsevier, 2024, pp. 549–54, doi:<a href=\"https://doi.org/10.1016/j.procir.2024.08.238\">10.1016/j.procir.2024.08.238</a>.","bibtex":"@inproceedings{Gräßler_Mozgova_Pottebaum_Ott_Jung_Hesse_2024, series={Procedia CIRP}, title={Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique}, volume={126}, DOI={<a href=\"https://doi.org/10.1016/j.procir.2024.08.238\">10.1016/j.procir.2024.08.238</a>}, booktitle={17th CIRP Conference on Intelligent Computation in Manufacturing Engineering}, publisher={Elsevier}, author={Gräßler, Iris and Mozgova, Iryna and Pottebaum, Jens and Ott, Manuel and Jung, Philipp and Hesse, Philipp}, year={2024}, pages={549–554}, collection={Procedia CIRP} }","apa":"Gräßler, I., Mozgova, I., Pottebaum, J., Ott, M., Jung, P., &#38; Hesse, P. (2024). Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique. <i>17th CIRP Conference on Intelligent Computation in Manufacturing Engineering</i>, <i>126</i>, 549–554. <a href=\"https://doi.org/10.1016/j.procir.2024.08.238\">https://doi.org/10.1016/j.procir.2024.08.238</a>","ama":"Gräßler I, Mozgova I, Pottebaum J, Ott M, Jung P, Hesse P. Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique. In: <i>17th CIRP Conference on Intelligent Computation in Manufacturing Engineering</i>. Vol 126. Procedia CIRP. Elsevier; 2024:549-554. doi:<a href=\"https://doi.org/10.1016/j.procir.2024.08.238\">10.1016/j.procir.2024.08.238</a>","chicago":"Gräßler, Iris, Iryna Mozgova, Jens Pottebaum, Manuel Ott, Philipp Jung, and Philipp Hesse. “Handling of Uncertainties in the Design of Sustainable Additive Manufacturing Products by Merging Design-for-X and Scenario-Technique.” In <i>17th CIRP Conference on Intelligent Computation in Manufacturing Engineering</i>, 126:549–54. Procedia CIRP. Elsevier, 2024. <a href=\"https://doi.org/10.1016/j.procir.2024.08.238\">https://doi.org/10.1016/j.procir.2024.08.238</a>.","ieee":"I. Gräßler, I. Mozgova, J. Pottebaum, M. Ott, P. Jung, and P. Hesse, “Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique,” in <i>17th CIRP Conference on Intelligent Computation in Manufacturing Engineering</i>, Gulf of Naples, 2024, vol. 126, pp. 549–554, doi: <a href=\"https://doi.org/10.1016/j.procir.2024.08.238\">10.1016/j.procir.2024.08.238</a>."},"publication_status":"published"},{"abstract":[{"text":"<jats:p>The optimization of process parameters in powder Directed Energy Deposition (DED) is essential for achieving consistent, high-quality bead geometries, which directly influence the performance and structural integrity of fabricated components. As a subset of additive manufacturing (AM), the DED process, also referred to as laser metal deposition (LMD), enables precise, layer-by-layer material deposition, making it highly suitable for complex geometries and part repair applications. Critical parameters, such as the laser power, feed rate, powder mass flow, and substrate temperature govern the deposition process, impacting the bead height, width, contact angle, and dilution. Inconsistent control over these variables can lead to defects, such as poor bonding, dimensional inaccuracies, and material weaknesses, ultimately compromising the final product. This paper investigates the effects of various process parameters, specifically the substrate temperature, on bead track geometry in DED processes for stainless steel (1.4404). A specialized experimental setup, integrated within a DED machine, facilitates the controlled thermal conditioning of sample sheets. Using Design of Experiments (DoE) methods, individual bead marks are generated and analyzed to assess geometric characteristics. Regression models, including both linear and quadratic approaches, are constructed to predict machine parameters for achieving the desired bead geometry at different substrate temperatures. Validation experiments confirm the accuracy and reliability of the models, particularly in predicting the bead height, bead width, and contact angle across a broad range of substrate temperatures. However, the models demonstrated limitations in accurately predicting dilution, indicating the need for further refinement. Despite some deviations in measured values, successful fabrication is achieved, demonstrating robust bonding between the bead and substrate. The developed models offer insights into optimizing DED process parameters to achieve desired bead characteristics, advancing the precision and reliability of additive manufacturing technology. Future work will focus on refining the regression models to improve predictions, particularly for dilution, and further investigate non-linear interactions between process variables.</jats:p>","lang":"eng"}],"publication":"Metals","ddc":["670"],"keyword":["additive manufacturing","direct energy deposition","laser metal deposition"],"language":[{"iso":"eng"}],"year":"2024","quality_controlled":"1","issue":"12","title":"Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling","publisher":"MDPI AG","date_created":"2024-12-10T12:13:23Z","status":"public","type":"journal_article","article_type":"original","article_number":"1353","_id":"57699","user_id":"49504","department":[{"_id":"321"},{"_id":"149"},{"_id":"9"}],"citation":{"ama":"Chalicheemalapalli Jayasankar D, Gnaase S, Lehnert D, Walter A, Rohling R, Tröster T. Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling. <i>Metals</i>. 2024;14(12). doi:<a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>","ieee":"D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling, and T. Tröster, “Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling,” <i>Metals</i>, vol. 14, no. 12, Art. no. 1353, 2024, doi: <a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>.","chicago":"Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Dennis Lehnert, Artur Walter, Robin Rohling, and Thomas Tröster. “Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling.” <i>Metals</i> 14, no. 12 (2024). <a href=\"https://doi.org/10.3390/met14121353\">https://doi.org/10.3390/met14121353</a>.","apa":"Chalicheemalapalli Jayasankar, D., Gnaase, S., Lehnert, D., Walter, A., Rohling, R., &#38; Tröster, T. (2024). Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling. <i>Metals</i>, <i>14</i>(12), Article 1353. <a href=\"https://doi.org/10.3390/met14121353\">https://doi.org/10.3390/met14121353</a>","bibtex":"@article{Chalicheemalapalli Jayasankar_Gnaase_Lehnert_Walter_Rohling_Tröster_2024, title={Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>}, number={121353}, journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli Jayasankar, Deviprasad and Gnaase, Stefan and Lehnert, Dennis and Walter, Artur and Rohling, Robin and Tröster, Thomas}, year={2024} }","short":"D. Chalicheemalapalli Jayasankar, S. Gnaase, D. Lehnert, A. Walter, R. Rohling, T. Tröster, Metals 14 (2024).","mla":"Chalicheemalapalli Jayasankar, Deviprasad, et al. “Effect of Substrate Temperature on Bead Track Geometry of 316L in Directed Energy Deposition: Investigation and Regression Modeling.” <i>Metals</i>, vol. 14, no. 12, 1353, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/met14121353\">10.3390/met14121353</a>."},"intvolume":"        14","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["2075-4701"]},"main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2075-4701/14/12/1353"}],"doi":"10.3390/met14121353","oa":"1","date_updated":"2026-03-20T08:44:28Z","author":[{"first_name":"Deviprasad","orcid":"https://orcid.org/ 0000-0002-3446-2444","last_name":"Chalicheemalapalli Jayasankar","full_name":"Chalicheemalapalli Jayasankar, Deviprasad","id":"49504"},{"first_name":"Stefan","full_name":"Gnaase, Stefan","id":"25730","last_name":"Gnaase"},{"full_name":"Lehnert, Dennis","id":"90491","last_name":"Lehnert","first_name":"Dennis"},{"first_name":"Artur","last_name":"Walter","full_name":"Walter, Artur"},{"first_name":"Robin","last_name":"Rohling","full_name":"Rohling, Robin"},{"first_name":"Thomas","full_name":"Tröster, Thomas","id":"553","last_name":"Tröster"}],"volume":14},{"type":"journal_article","status":"public","_id":"56089","department":[{"_id":"9"},{"_id":"321"},{"_id":"149"}],"user_id":"49504","article_type":"original","article_number":"772","publication_identifier":{"issn":["2075-4701"]},"publication_status":"published","intvolume":"        14","citation":{"chicago":"Chalicheemalapalli Jayasankar, Deviprasad, Stefan Gnaase, Maximilian Alexander Kaiser, Dennis Lehnert, and Thomas Tröster. “Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications.” <i>Metals</i> 14, no. 7 (2024). <a href=\"https://doi.org/10.3390/met14070772\">https://doi.org/10.3390/met14070772</a>.","ieee":"D. Chalicheemalapalli Jayasankar, S. Gnaase, M. A. Kaiser, D. Lehnert, and T. Tröster, “Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications,” <i>Metals</i>, vol. 14, no. 7, Art. no. 772, 2024, doi: <a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>.","apa":"Chalicheemalapalli Jayasankar, D., Gnaase, S., Kaiser, M. A., Lehnert, D., &#38; Tröster, T. (2024). Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications. <i>Metals</i>, <i>14</i>(7), Article 772. <a href=\"https://doi.org/10.3390/met14070772\">https://doi.org/10.3390/met14070772</a>","ama":"Chalicheemalapalli Jayasankar D, Gnaase S, Kaiser MA, Lehnert D, Tröster T. Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications. <i>Metals</i>. 2024;14(7). doi:<a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>","mla":"Chalicheemalapalli Jayasankar, Deviprasad, et al. “Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications.” <i>Metals</i>, vol. 14, no. 7, 772, MDPI AG, 2024, doi:<a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>.","bibtex":"@article{Chalicheemalapalli Jayasankar_Gnaase_Kaiser_Lehnert_Tröster_2024, title={Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/met14070772\">10.3390/met14070772</a>}, number={7772}, journal={Metals}, publisher={MDPI AG}, author={Chalicheemalapalli Jayasankar, Deviprasad and Gnaase, Stefan and Kaiser, Maximilian Alexander and Lehnert, Dennis and Tröster, Thomas}, year={2024} }","short":"D. Chalicheemalapalli Jayasankar, S. Gnaase, M.A. Kaiser, D. Lehnert, T. Tröster, Metals 14 (2024)."},"date_updated":"2026-03-20T08:44:23Z","oa":"1","volume":14,"author":[{"full_name":"Chalicheemalapalli Jayasankar, Deviprasad","id":"49504","orcid":"https://orcid.org/ 0000-0002-3446-2444","last_name":"Chalicheemalapalli Jayasankar","first_name":"Deviprasad"},{"last_name":"Gnaase","id":"25730","full_name":"Gnaase, Stefan","first_name":"Stefan"},{"full_name":"Kaiser, Maximilian Alexander","id":"72351","orcid":"0009-0008-1333-3396","last_name":"Kaiser","first_name":"Maximilian Alexander"},{"last_name":"Lehnert","full_name":"Lehnert, Dennis","id":"90491","first_name":"Dennis"},{"first_name":"Thomas","last_name":"Tröster","id":"553","full_name":"Tröster, Thomas"}],"doi":"10.3390/met14070772","main_file_link":[{"url":"https://www.mdpi.com/2075-4701/14/7/772","open_access":"1"}],"publication":"Metals","abstract":[{"text":"<jats:p>Additive manufacturing (AM) technologies enable near-net-shape designs and demand-oriented material usage, which significantly minimizes waste. This points to a substantial opportunity for further optimization in material savings and process design. The current study delves into the advancement of sustainable manufacturing practices in the automotive industry, emphasizing the crucial role of lightweight construction concepts and AM technologies in enhancing resource efficiency and reducing greenhouse gas emissions. By exploring the integration of novel AM techniques such as selective laser melting (SLM) and laser metal deposition (LMD), the study aims to overcome existing limitations like slow build-up rates and limited component resolution. The study’s core objective revolves around the development and validation of a continuous process chain that synergizes different AM routes. In the current study, the continuous process chain for DMG MORI Lasertec 65 3D’s LMD system and the DMG MORI Lasertec 30 3D’s was demonstrated using 316L and 1.2709 steel materials. This integrated approach is designed to significantly curtail process times and minimize component costs, thus suggesting an industry-oriented process chain for future manufacturing paradigms. Additionally, the research investigates the production and material behavior of components under varying manufacturing processes, material combinations, and boundary layer materials. The culmination of this study is the validation of the proposed process route through a technology demonstrator, assessing its scalability and setting a benchmark for resource-efficient manufacturing in the automotive sector.</jats:p>","lang":"eng"}],"keyword":["additive manufacturing (AM)","selective laser melting (SLM)","laser metal deposition (LMD)","hybrid manufacturing","process optimization","316L","1.2709"],"language":[{"iso":"eng"}],"quality_controlled":"1","issue":"7","year":"2024","publisher":"MDPI AG","date_created":"2024-09-10T10:19:32Z","title":"Advancements in Hybrid Additive Manufacturing: Integrating SLM and LMD for High-Performance Applications"},{"place":"Laboratory for Freeform Fabrication and University of Texas, Austin","citation":{"ama":"Kletetzka I, Neitzel F, Schmid H-J. Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering. In: Beaman J, ed. <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>. ; 2023. doi:<a href=\"https://doi.org/10.26153/tsw/50931\">https://doi.org/10.26153/tsw/50931</a>","ieee":"I. Kletetzka, F. Neitzel, and H.-J. Schmid, “Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering,” in <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>, Austin, 2023, doi: <a href=\"https://doi.org/10.26153/tsw/50931\">https://doi.org/10.26153/tsw/50931</a>.","chicago":"Kletetzka, Ivo, Fabian Neitzel, and Hans-Joachim Schmid. “Assessing the Impact of the Powder Production Method on Ceramic-Filled Polyamide Composites Made by Laser Sintering.” In <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>, edited by Joseph Beaman. Laboratory for Freeform Fabrication and University of Texas, Austin, 2023. <a href=\"https://doi.org/10.26153/tsw/50931\">https://doi.org/10.26153/tsw/50931</a>.","bibtex":"@inproceedings{Kletetzka_Neitzel_Schmid_2023, place={Laboratory for Freeform Fabrication and University of Texas, Austin}, title={Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering}, DOI={<a href=\"https://doi.org/10.26153/tsw/50931\">https://doi.org/10.26153/tsw/50931</a>}, booktitle={Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium}, author={Kletetzka, Ivo and Neitzel, Fabian and Schmid, Hans-Joachim}, editor={Beaman, Joseph}, year={2023} }","mla":"Kletetzka, Ivo, et al. “Assessing the Impact of the Powder Production Method on Ceramic-Filled Polyamide Composites Made by Laser Sintering.” <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>, edited by Joseph Beaman, 2023, doi:<a href=\"https://doi.org/10.26153/tsw/50931\">https://doi.org/10.26153/tsw/50931</a>.","short":"I. Kletetzka, F. Neitzel, H.-J. Schmid, in: J. Beaman (Ed.), Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, Laboratory for Freeform Fabrication and University of Texas, Austin, 2023.","apa":"Kletetzka, I., Neitzel, F., &#38; Schmid, H.-J. (2023). Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering. In J. Beaman (Ed.), <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>. <a href=\"https://doi.org/10.26153/tsw/50931\">https://doi.org/10.26153/tsw/50931</a>"},"publication_status":"published","main_file_link":[{"url":"https://www.sffsymposium.org/","open_access":"1"}],"conference":{"start_date":"2023-08-14","name":"34th Annual International Solid Freeform Fabrication Symposium","location":"Austin","end_date":"2023-08-16"},"doi":"https://doi.org/10.26153/tsw/50931","date_updated":"2024-04-02T12:46:08Z","oa":"1","author":[{"first_name":"Ivo","id":"50769","full_name":"Kletetzka, Ivo","last_name":"Kletetzka"},{"orcid":"0009-0004-8412-3645 ","last_name":"Neitzel","id":"72307","full_name":"Neitzel, Fabian","first_name":"Fabian"},{"first_name":"Hans-Joachim","full_name":"Schmid, Hans-Joachim","id":"464","last_name":"Schmid","orcid":"000-0001-8590-1921"}],"editor":[{"full_name":"Beaman, Joseph","last_name":"Beaman","first_name":"Joseph"}],"status":"public","type":"conference","_id":"51218","user_id":"50769","department":[{"_id":"150"},{"_id":"219"},{"_id":"624"},{"_id":"9"}],"year":"2023","quality_controlled":"1","title":"Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering","date_created":"2024-02-07T13:59:25Z","abstract":[{"text":"Polymer composites represent the industry standard in injection molding for the production of plastic components with increased requirements in terms of heat resistance and stiffness. In the field of laser sintering (LS), these materials are less common so far. In order to extend the available material variety for the LS process, new ceramic-filled Polyamide 613 powders are investigated within the scope of this work. Here, the resulting properties from two different powder production methods are compared. One filled powder is produced by dry blending and the other powder with the same filler and filling ratio is produced by encapsulating the filler particles inside the polymer particles within the dissolution-precipitation process. It was found that encapsulating the filler particles can provide certain benefits for the processability, for example an improved powder flowability or better filler dispersion. However, encapsulating the filler also alters the thermal properties of the precipitated powder. ","lang":"eng"}],"publication":"Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium","keyword":["Additive Manufacturing","Laser Sintering","Filled Materials","Composites","Polyamide 613"],"language":[{"iso":"eng"}]},{"keyword":["Additive Manufacturing","Laser Sintering","Flame Retardant","Polyamide 12"],"language":[{"iso":"eng"}],"publication":"Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium","abstract":[{"text":"The high flammability of components manufactured by laser sintering (LS) using standard polyamide 12 (PA12) powder still severely restricts their use in industries such as electronics, aviation, and transportation. A key factor for the further establishment of LS is the expansion of the material portfolio with, for example, refreshable and halogen-free flame-retardant (FR) powder materials. Accordingly, various halogen-free FRs are investigated in this work and evaluated with respect to their use in LS. First, their decomposition behavior and mode of action are examined. Subsequently, the additives are dry blended with PA12 to investigate properties relevant for LS, such as particle morphology, thermal behavior and melt viscosity. Afterwards, test specimens for UL94 vertical flame-retardancy tests are produced by processing the dry blends on an EOS P3 LS system. Finally, the process stability of the process-aged powder blends is investigated by again examining the thermal behavior and melt viscosity.","lang":"eng"}],"date_created":"2023-09-07T12:11:51Z","title":"Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis","quality_controlled":"1","year":"2023","_id":"46862","department":[{"_id":"150"},{"_id":"219"},{"_id":"624"},{"_id":"9"}],"user_id":"72307","type":"conference","editor":[{"first_name":"Joseph","last_name":"Beaman","full_name":"Beaman, Joseph"}],"status":"public","date_updated":"2024-04-02T12:43:51Z","oa":"1","author":[{"last_name":"Neitzel","orcid":"0009-0004-8412-3645 ","full_name":"Neitzel, Fabian","id":"72307","first_name":"Fabian"},{"last_name":"Kletetzka","full_name":"Kletetzka, Ivo","id":"50769","first_name":"Ivo"},{"last_name":"Schmid","orcid":"000-0001-8590-1921","full_name":"Schmid, Hans-Joachim","id":"464","first_name":"Hans-Joachim"}],"doi":"https://doi.org/10.26153/tsw/50926","conference":{"end_date":"2023-08-16","location":"Austin","name":"34th Annual International Solid Freeform Fabrication Symposium","start_date":"2023-08-14"},"main_file_link":[{"open_access":"1","url":"https://www.sffsymposium.org/"}],"publication_status":"published","place":"Laboratory for Freeform Fabrication and University of Texas, Austin","citation":{"ama":"Neitzel F, Kletetzka I, Schmid H-J. Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis. In: Beaman J, ed. <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>. ; 2023. doi:<a href=\"https://doi.org/10.26153/tsw/50926\">https://doi.org/10.26153/tsw/50926</a>","ieee":"F. Neitzel, I. Kletetzka, and H.-J. Schmid, “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis,” in <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>, Austin, 2023, doi: <a href=\"https://doi.org/10.26153/tsw/50926\">https://doi.org/10.26153/tsw/50926</a>.","chicago":"Neitzel, Fabian, Ivo Kletetzka, and Hans-Joachim Schmid. “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis.” In <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>, edited by Joseph Beaman. Laboratory for Freeform Fabrication and University of Texas, Austin, 2023. <a href=\"https://doi.org/10.26153/tsw/50926\">https://doi.org/10.26153/tsw/50926</a>.","apa":"Neitzel, F., Kletetzka, I., &#38; Schmid, H.-J. (2023). Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis. In J. Beaman (Ed.), <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>. <a href=\"https://doi.org/10.26153/tsw/50926\">https://doi.org/10.26153/tsw/50926</a>","bibtex":"@inproceedings{Neitzel_Kletetzka_Schmid_2023, place={Laboratory for Freeform Fabrication and University of Texas, Austin}, title={Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis}, DOI={<a href=\"https://doi.org/10.26153/tsw/50926\">https://doi.org/10.26153/tsw/50926</a>}, booktitle={Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium}, author={Neitzel, Fabian and Kletetzka, Ivo and Schmid, Hans-Joachim}, editor={Beaman, Joseph}, year={2023} }","mla":"Neitzel, Fabian, et al. “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis.” <i>Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium</i>, edited by Joseph Beaman, 2023, doi:<a href=\"https://doi.org/10.26153/tsw/50926\">https://doi.org/10.26153/tsw/50926</a>.","short":"F. Neitzel, I. Kletetzka, H.-J. Schmid, in: J. Beaman (Ed.), Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, Laboratory for Freeform Fabrication and University of Texas, Austin, 2023."}},{"citation":{"chicago":"Rossel, Jost, Vladislav Mladenov, and Juraj Somorovsky. “Security Analysis of the 3MF Data Format.” In <i>Proceedings of the 26th International Symposium on Research in Attacks, Intrusions and Defenses</i>. ACM, 2023. <a href=\"https://doi.org/10.1145/3607199.3607216\">https://doi.org/10.1145/3607199.3607216</a>.","ieee":"J. Rossel, V. Mladenov, and J. Somorovsky, “Security Analysis of the 3MF Data Format,” presented at the 26th International Symposium on Research in Attacks, Intrusions and Defenses, Hongkong, 2023, doi: <a href=\"https://doi.org/10.1145/3607199.3607216\">10.1145/3607199.3607216</a>.","ama":"Rossel J, Mladenov V, Somorovsky J. Security Analysis of the 3MF Data Format. In: <i>Proceedings of the 26th International Symposium on Research in Attacks, Intrusions and Defenses</i>. ACM; 2023. doi:<a href=\"https://doi.org/10.1145/3607199.3607216\">10.1145/3607199.3607216</a>","apa":"Rossel, J., Mladenov, V., &#38; Somorovsky, J. (2023). Security Analysis of the 3MF Data Format. <i>Proceedings of the 26th International Symposium on Research in Attacks, Intrusions and Defenses</i>. 26th International Symposium on Research in Attacks, Intrusions and Defenses, Hongkong. <a href=\"https://doi.org/10.1145/3607199.3607216\">https://doi.org/10.1145/3607199.3607216</a>","bibtex":"@inproceedings{Rossel_Mladenov_Somorovsky_2023, title={Security Analysis of the 3MF Data Format}, DOI={<a href=\"https://doi.org/10.1145/3607199.3607216\">10.1145/3607199.3607216</a>}, booktitle={Proceedings of the 26th International Symposium on Research in Attacks, Intrusions and Defenses}, publisher={ACM}, author={Rossel, Jost and Mladenov, Vladislav and Somorovsky, Juraj}, year={2023} }","mla":"Rossel, Jost, et al. “Security Analysis of the 3MF Data Format.” <i>Proceedings of the 26th International Symposium on Research in Attacks, Intrusions and Defenses</i>, ACM, 2023, doi:<a href=\"https://doi.org/10.1145/3607199.3607216\">10.1145/3607199.3607216</a>.","short":"J. Rossel, V. Mladenov, J. Somorovsky, in: Proceedings of the 26th International Symposium on Research in Attacks, Intrusions and Defenses, ACM, 2023."},"has_accepted_license":"1","publication_status":"published","doi":"10.1145/3607199.3607216","conference":{"end_date":"2023-10-18","location":"Hongkong","name":"26th International Symposium on Research in Attacks, Intrusions and Defenses","start_date":"2023-10-16"},"main_file_link":[{"url":"https://dl.acm.org/doi/abs/10.1145/3607199.3607216"}],"author":[{"last_name":"Rossel","orcid":"0000-0002-3182-4059","full_name":"Rossel, Jost","id":"58331","first_name":"Jost"},{"first_name":"Vladislav","last_name":"Mladenov","full_name":"Mladenov, Vladislav"},{"id":"83504","full_name":"Somorovsky, Juraj","orcid":"0000-0002-3593-7720","last_name":"Somorovsky","first_name":"Juraj"}],"date_updated":"2025-07-16T11:06:49Z","oa":"1","status":"public","type":"conference","file_date_updated":"2024-09-05T11:14:40Z","department":[{"_id":"632"}],"user_id":"58331","_id":"48012","year":"2023","quality_controlled":"1","title":"Security Analysis of the 3MF Data Format","date_created":"2023-10-11T13:42:09Z","publisher":"ACM","file":[{"creator":"jrossel","date_created":"2023-10-16T03:48:08Z","date_updated":"2024-09-05T11:14:40Z","file_name":"Security_Analysis_of_the_3mf_Data_Format.pdf","file_id":"48065","access_level":"open_access","file_size":1054999,"content_type":"application/pdf","relation":"main_file"}],"abstract":[{"text":"3D printing is a well-established technology with rapidly increasing usage scenarios both in the industry and consumer context. The growing popularity of 3D printing has also attracted security researchers, who have analyzed possibilities for weakening 3D models or stealing intellectual property from 3D models. We extend these important aspects and provide the first comprehensive security analysis of 3D printing data formats. We performed our systematic study on the example of the 3D Manufacturing Format (3MF), which offers a large variety of features that could lead to critical attacks. Based on 3MF’s features, we systematized three attack goals: Data Exfiltration (dex), Denial of Service, and UI Spoofing (uis). We achieve these goals by exploiting the complexity of 3MF, which is based on the Open Packaging Conventions (OPC) format and uses XML to define 3D models. In total, our analysis led to 352 tests. To create and run these tests automatically, we implemented an open-source tool named 3MF Analyzer (tool), which helped us evaluate 20 applications.","lang":"eng"}],"publication":"Proceedings of the 26th International Symposium on Research in Attacks, Intrusions and Defenses","language":[{"iso":"eng"}],"keyword":["Data Format Security","3D Manufacturing Format","3D Printing","Additive Manufacturing"],"ddc":["000"]},{"corporate_editor":["Deutscher Verband für Materialforschung und -prüfung e.V. "],"year":"2022","title":"Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien","date_created":"2023-01-16T08:42:28Z","abstract":[{"lang":"ger","text":"Die additive Fertigung bietet die Möglichkeit, digitale Prototypen dank der\r\nBesonderheit der werkzeuglosen Fertigung schnellstmöglich in reale Strukturen\r\numzusetzen. Dieses Verfahren kann jedoch nur dann mit optimaler Geschwindigkeit\r\ngenutzt werden, wenn Engpässe wirksam vermieden werden können. Einer dieser\r\nEngpässe ist der Konstruktionsprozess. Gerade im Bereich der additiven Fertigung\r\nsind in letzter Zeit immer leistungsfähigere Softwarelösungen erschienen, die das\r\nDesign für die additive Fertigung, einschließlich der meisten Computer-Aided-Design\r\n(CAD)-Aufgaben, beschleunigen. In vielen Bereichen wird daher bereits versucht, so\r\nviele Schritte wie möglich zu automatisieren, nicht selten unter Verwendung\r\nneuronaler Netze und künstlicher Intelligenz. Dieser Beitrag zeigt am Beispiel einer\r\nautomatisierten Strukturoptimierung eines Stuhls, warum das Nutzen neuronaler\r\nNetze im Konstruktionsprozess sinnvoll ist, um die Bereiche der konventionellen\r\nTopologieoptimierung und des Generative Design weiter zu verknüpfen und somit die\r\nProduktentwicklungszeit zu reduzieren."}],"publication":"Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen","language":[{"iso":"ger"}],"keyword":["Künstliche Intelligenz","Neuronale Netze","3D-Druck","Design for Additive Manufacturing"],"jel":["L74"],"citation":{"apa":"Ott, M., Meihöfener, N., &#38; Koch, R. (2022). Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien. In Deutscher Verband für Materialforschung und -prüfung e.V.  (Ed.), <i>Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen</i> (Vol. 7, pp. 91–106). <a href=\"https://doi.org/10.48447/ADD-2022-014\">https://doi.org/10.48447/ADD-2022-014</a>","mla":"Ott, Manuel, et al. “Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien.” <i>Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen</i>, edited by Deutscher Verband für Materialforschung und -prüfung e.V. , vol. 7, 2022, pp. 91–106, doi:<a href=\"https://doi.org/10.48447/ADD-2022-014\">10.48447/ADD-2022-014</a>.","bibtex":"@inproceedings{Ott_Meihöfener_Koch_2022, place={Berlin}, series={Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen}, title={Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien}, volume={7}, DOI={<a href=\"https://doi.org/10.48447/ADD-2022-014\">10.48447/ADD-2022-014</a>}, booktitle={Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen}, author={Ott, Manuel and Meihöfener, Niclas and Koch, Rainer}, editor={Deutscher Verband für Materialforschung und -prüfung e.V. }, year={2022}, pages={91–106}, collection={Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen} }","short":"M. Ott, N. Meihöfener, R. Koch, in: Deutscher Verband für Materialforschung und -prüfung e.V.  (Ed.), Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen, Berlin, 2022, pp. 91–106.","ama":"Ott M, Meihöfener N, Koch R. Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien. In: Deutscher Verband für Materialforschung und -prüfung e.V. , ed. <i>Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen</i>. Vol 7. Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen. ; 2022:91-106. doi:<a href=\"https://doi.org/10.48447/ADD-2022-014\">10.48447/ADD-2022-014</a>","chicago":"Ott, Manuel, Niclas Meihöfener, and Rainer Koch. “Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien.” In <i>Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen</i>, edited by Deutscher Verband für Materialforschung und -prüfung e.V. , 7:91–106. Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen. Berlin, 2022. <a href=\"https://doi.org/10.48447/ADD-2022-014\">https://doi.org/10.48447/ADD-2022-014</a>.","ieee":"M. Ott, N. Meihöfener, and R. Koch, “Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien,” in <i>Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen</i>, Berlin, 2022, vol. 7, pp. 91–106, doi: <a href=\"https://doi.org/10.48447/ADD-2022-014\">10.48447/ADD-2022-014</a>."},"page":"91-106","intvolume":"         7","place":"Berlin","publication_status":"published","conference":{"end_date":"2022-11-09","location":"Berlin","name":"7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen","start_date":"2022-11-08"},"doi":"10.48447/ADD-2022-014","author":[{"full_name":"Ott, Manuel","id":"44204","last_name":"Ott","first_name":"Manuel"},{"first_name":"Niclas","full_name":"Meihöfener, Niclas","last_name":"Meihöfener"},{"first_name":"Rainer","full_name":"Koch, Rainer","last_name":"Koch"}],"volume":7,"date_updated":"2023-01-18T08:52:56Z","status":"public","type":"conference","series_title":"Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen","user_id":"44204","department":[{"_id":"741"},{"_id":"144"}],"_id":"36866"},{"citation":{"ama":"Urbanek S, Pauline F, Magerkohl S, et al. Design and Experimental Investigation of an Additively Manufactured PMSM Rotor. In: ; 2021. doi:<a href=\"https://doi.org/10.1109/IEMDC47953.2021.9449566\">10.1109/IEMDC47953.2021.9449566</a>","chicago":"Urbanek, Stefan, Frey Pauline, Sebastian Magerkohl, Detmar Zimmer, Lennart Tasche, Mirko Schaper, and Bernd Ponick. “Design and Experimental Investigation of an Additively Manufactured PMSM Rotor,” 2021. <a href=\"https://doi.org/10.1109/IEMDC47953.2021.9449566\">https://doi.org/10.1109/IEMDC47953.2021.9449566</a>.","ieee":"S. Urbanek <i>et al.</i>, “Design and Experimental Investigation of an Additively Manufactured PMSM Rotor,” Connecticut, USA, 2021, doi: <a href=\"https://doi.org/10.1109/IEMDC47953.2021.9449566\">10.1109/IEMDC47953.2021.9449566</a>.","short":"S. Urbanek, F. Pauline, S. Magerkohl, D. Zimmer, L. Tasche, M. Schaper, B. Ponick, in: 2021.","bibtex":"@inproceedings{Urbanek_Pauline_Magerkohl_Zimmer_Tasche_Schaper_Ponick_2021, title={Design and Experimental Investigation of an Additively Manufactured PMSM Rotor}, DOI={<a href=\"https://doi.org/10.1109/IEMDC47953.2021.9449566\">10.1109/IEMDC47953.2021.9449566</a>}, author={Urbanek, Stefan and Pauline, Frey and Magerkohl, Sebastian and Zimmer, Detmar and Tasche, Lennart and Schaper, Mirko and Ponick, Bernd}, year={2021} }","mla":"Urbanek, Stefan, et al. <i>Design and Experimental Investigation of an Additively Manufactured PMSM Rotor</i>. 2021, doi:<a href=\"https://doi.org/10.1109/IEMDC47953.2021.9449566\">10.1109/IEMDC47953.2021.9449566</a>.","apa":"Urbanek, S., Pauline, F., Magerkohl, S., Zimmer, D., Tasche, L., Schaper, M., &#38; Ponick, B. (2021). <i>Design and Experimental Investigation of an Additively Manufactured PMSM Rotor</i>. <a href=\"https://doi.org/10.1109/IEMDC47953.2021.9449566\">https://doi.org/10.1109/IEMDC47953.2021.9449566</a>"},"year":"2021","publication_status":"published","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/9449566"}],"conference":{"start_date":"2021-05-17","end_date":"2021-05-20","location":"Connecticut, USA"},"doi":"10.1109/IEMDC47953.2021.9449566","title":"Design and Experimental Investigation of an Additively Manufactured PMSM Rotor","date_created":"2021-09-14T13:12:32Z","author":[{"last_name":"Urbanek","full_name":"Urbanek, Stefan","first_name":"Stefan"},{"last_name":"Pauline","full_name":"Pauline, Frey","first_name":"Frey"},{"full_name":"Magerkohl, Sebastian","id":"28520","last_name":"Magerkohl","first_name":"Sebastian"},{"first_name":"Detmar","last_name":"Zimmer","id":"604","full_name":"Zimmer, Detmar"},{"first_name":"Lennart","full_name":"Tasche, Lennart","last_name":"Tasche"},{"first_name":"Mirko","full_name":"Schaper, Mirko","last_name":"Schaper"},{"first_name":"Bernd","full_name":"Ponick, Bernd","last_name":"Ponick"}],"date_updated":"2022-01-06T06:56:20Z","status":"public","type":"conference","language":[{"iso":"eng"}],"keyword":["Elektromotor","Elektromaschine","Additive Fertigung","AF","AM","Additive Manufacturing","DMRC","KAt"],"user_id":"28520","department":[{"_id":"146"},{"_id":"158"}],"_id":"24426"},{"doi":"10.1016/j.matdes.2021.109677","title":"Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry","date_created":"2021-09-17T08:38:58Z","author":[{"full_name":"Zhuravlev, Evgeny","last_name":"Zhuravlev","first_name":"Evgeny"},{"first_name":"Benjamin","full_name":"Milkereit, Benjamin","last_name":"Milkereit"},{"first_name":"Bin","last_name":"Yang","full_name":"Yang, Bin"},{"full_name":"Heiland, Steffen","last_name":"Heiland","first_name":"Steffen"},{"last_name":"Vieth","full_name":"Vieth, Pascal","first_name":"Pascal"},{"first_name":"Markus","last_name":"Voigt","full_name":"Voigt, Markus"},{"last_name":"Schaper","full_name":"Schaper, Mirko","first_name":"Mirko"},{"first_name":"Guido","full_name":"Grundmeier, Guido","last_name":"Grundmeier"},{"full_name":"Schick, Christoph","last_name":"Schick","first_name":"Christoph"},{"full_name":"Kessler, Olaf","last_name":"Kessler","first_name":"Olaf"}],"date_updated":"2022-01-06T06:56:29Z","citation":{"short":"E. Zhuravlev, B. Milkereit, B. Yang, S. Heiland, P. Vieth, M. Voigt, M. Schaper, G. Grundmeier, C. Schick, O. Kessler, Materials &#38; Design (2021).","bibtex":"@article{Zhuravlev_Milkereit_Yang_Heiland_Vieth_Voigt_Schaper_Grundmeier_Schick_Kessler_2021, title={Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry}, DOI={<a href=\"https://doi.org/10.1016/j.matdes.2021.109677\">10.1016/j.matdes.2021.109677</a>}, number={109677}, journal={Materials &#38; Design}, author={Zhuravlev, Evgeny and Milkereit, Benjamin and Yang, Bin and Heiland, Steffen and Vieth, Pascal and Voigt, Markus and Schaper, Mirko and Grundmeier, Guido and Schick, Christoph and Kessler, Olaf}, year={2021} }","mla":"Zhuravlev, Evgeny, et al. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.” <i>Materials &#38; Design</i>, 109677, 2021, doi:<a href=\"https://doi.org/10.1016/j.matdes.2021.109677\">10.1016/j.matdes.2021.109677</a>.","apa":"Zhuravlev, E., Milkereit, B., Yang, B., Heiland, S., Vieth, P., Voigt, M., Schaper, M., Grundmeier, G., Schick, C., &#38; Kessler, O. (2021). Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry. <i>Materials &#38; Design</i>, Article 109677. <a href=\"https://doi.org/10.1016/j.matdes.2021.109677\">https://doi.org/10.1016/j.matdes.2021.109677</a>","ama":"Zhuravlev E, Milkereit B, Yang B, et al. Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry. <i>Materials &#38; Design</i>. Published online 2021. doi:<a href=\"https://doi.org/10.1016/j.matdes.2021.109677\">10.1016/j.matdes.2021.109677</a>","chicago":"Zhuravlev, Evgeny, Benjamin Milkereit, Bin Yang, Steffen Heiland, Pascal Vieth, Markus Voigt, Mirko Schaper, Guido Grundmeier, Christoph Schick, and Olaf Kessler. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.” <i>Materials &#38; Design</i>, 2021. <a href=\"https://doi.org/10.1016/j.matdes.2021.109677\">https://doi.org/10.1016/j.matdes.2021.109677</a>.","ieee":"E. Zhuravlev <i>et al.</i>, “Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry,” <i>Materials &#38; Design</i>, Art. no. 109677, 2021, doi: <a href=\"https://doi.org/10.1016/j.matdes.2021.109677\">10.1016/j.matdes.2021.109677</a>."},"year":"2021","publication_identifier":{"issn":["0264-1275"]},"publication_status":"published","language":[{"iso":"eng"}],"keyword":["Aluminium alloy 7075","Differential fast scanning calorimetry","Solidification","Undercooling","Additive manufacturing"],"article_number":"109677","article_type":"original","department":[{"_id":"9"},{"_id":"158"},{"_id":"219"}],"user_id":"77250","_id":"24589","status":"public","abstract":[{"text":"Additive manufacturing, e.g. by laser powder bed fusion (LPBF), is very attractive for lightweight constructions, as complex and stress-optimised structures integrating multiple functions can be produced within one process. Unfortunately, high strength AlZnMgCu alloys tend to hot cracking during LPBF\r\nand thus have not so far been applicable. In this work the melting and solidification behaviour of\r\nAlZnMgCu alloy powder variants with particle surface inoculation was analysed by Differential Fast\r\nScanning Calorimetry. The aim is to establish a method that makes it possible to assess powder modifications in terms of their suitability for LPBF on a laboratory scale requiring only small amounts of powder.\r\nTherefore, solidification undercooling is evaluated at cooling rates relevant for LPBF. A method for the\r\ntemperature correction and normalisation of the DFSC results is proposed. Two ways of powder modification were tested for the powder particles surface inoculation by titanium carbide (TiC) nanoparticles:\r\nvia wet-chemical deposition and via mechanical mixing.\r\nA low undercooling from DFSC correlates with a low number of cracks of LPBF-manufactured cubes. It\r\nappears that a reduced undercooling combined with reduced solidification onset scatter indicates the\r\npossibility of crack-free LPBF of alloys that otherwise tend to hot cracking.","lang":"eng"}],"publication":"Materials & Design","type":"journal_article"},{"publication_status":"published","publication_identifier":{"isbn":["978-3844074246","3844074244"]},"citation":{"mla":"Ahlers, Dominik. <i>Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V </i>. Vol. 19, Shaker, 2020.","short":"D. Ahlers, Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V , Shaker, 2020.","bibtex":"@book{Ahlers_2020, series={Forschungsberichte des Direct Manufacturing Research Centers}, title={Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V }, volume={19}, publisher={Shaker}, author={Ahlers, Dominik}, year={2020}, collection={Forschungsberichte des Direct Manufacturing Research Centers} }","apa":"Ahlers, D. (2020). <i>Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V </i> (Vol. 19). Shaker.","ama":"Ahlers D. <i>Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V </i>. Vol 19. Shaker; 2020.","ieee":"D. Ahlers, <i>Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V </i>, vol. 19. Shaker, 2020.","chicago":"Ahlers, Dominik. <i>Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V </i>. Vol. 19. Forschungsberichte des Direct Manufacturing Research Centers. Shaker, 2020."},"page":"137","intvolume":"        19","year":"2020","author":[{"first_name":"Dominik","last_name":"Ahlers","full_name":"Ahlers, Dominik","id":"11207"}],"date_created":"2021-02-12T09:15:01Z","volume":19,"publisher":"Shaker","date_updated":"2022-01-06T06:54:49Z","title":"Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V ","type":"dissertation","status":"public","abstract":[{"text":"Die additive Fertigung mittels Laser Powderbed Fusion Verfahren (L-PBF) von Metallen wird zunehmend genutzt, um Funktionsbauteile endkonturnah zu fertigen. Die in der vor-liegenden Arbeit untersuchte Parameter- und Prozessoptimierung liefert einen Beitrag zur wirtschaftlichen Nutzung des L-PBF und zeigt, dass höhere Aufbauraten bei der ganzheit-lichen Betrachtung des Prozesses realisierbar sind.\r\nDie Parameter- und Prozessoptimierung erfordert eine Untersuchung des Einflusses der Fertigungs- und Nachbearbeitungsparameter auf das erzeugte Volumen sowie auf die Mikrostruktur und die resultierenden Materialeigenschaften. Das Ziel der vorliegenden Arbeit ist die Entwicklung einer optimierten Prozessführung mit abschließender Bewer-tung der Wirtschaftlichkeit. Mit dem entwickelten Gesamtprozess wird eine um den Faktor 1,6 höhere Aufbaurate erzielt. Des Weiteren wird die Methodik zur Erarbeitung des opti-mierten Prozessfensters beschrieben, sodass die Herangehensweise auf weitere Werk-stoffe angewendet werden kann. Die mechanischen Eigenschaften werden für den stati-schen und dynamischen Lastfall untersucht und mit der Mikrostruktur korreliert. Abschlie-ßend wird die Prozessoptimierung zur Fertigung eines Demonstrators eingesetzt und wirtschaftlich validiert. Die Ergebnisse zeigen, dass durch das hier angewendete Vorge-hen eine Prozesszeitreduktion von 22,5% und eine Kostenreduktion von 11% realisiert werden kann.","lang":"ger"}],"series_title":"Forschungsberichte des Direct Manufacturing Research Centers","user_id":"11207","department":[{"_id":"9"},{"_id":"149"},{"_id":"321"},{"_id":"219"}],"_id":"21209","language":[{"iso":"ger"}],"keyword":["Additive Manufacturing","SLM"]},{"abstract":[{"lang":"eng","text":"Polymer Laser Sintering (LS) is one of the most used Additive Manufacturing (AM) technologies for the tool-less production of polymer parts. The raw material is a polymer powder which is melted layerwise by the use of laser energy. Especially for the production of single parts, small series, individualized and complex structures, the technology is yet established in few branches. However, inhomogeneous and hardly controllable thermal effects during manufacturing limit the build reproducibility. The present work focuses on temperatures within so-called part cakes, their time dependency and their influence on process quality. Therefore, a temperature measurement system is implemented into a commercial laser sintering machine. Based on the experimental data a model to simulate heat transfer within part cakes is set up. Individual thermal histories during processing are successfully correlated with position dependent powder ageing effects. Another focus is on the analysis of a recycling optimized material. First results of correlations between thermal histories and part properties are shown in order to provide an outlook to further research. The data and knowledge gained through this work can be used to understand thermal effects in greater depth and to increase the process quality via optimizations."}],"keyword":["Additive Manufacturing","Polymer Laser Sintering","Polymer Science"],"language":[{"iso":"eng"}],"year":"2019","title":"On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process","publisher":"Shaker Verlag GmbH","date_created":"2021-09-21T11:23:29Z","status":"public","type":"dissertation","_id":"24753","series_title":"Forschungsberichte des Direct Manufacturing Research Centers","user_id":"71545","department":[{"_id":"150"},{"_id":"624"},{"_id":"219"}],"place":"Düren","citation":{"ama":"Josupeit S. <i>On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process</i>. Vol 11. Shaker Verlag GmbH; 2019.","chicago":"Josupeit, Stefan. <i>On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process</i>. Vol. 11. Forschungsberichte Des Direct Manufacturing Research Centers. Düren: Shaker Verlag GmbH, 2019.","ieee":"S. Josupeit, <i>On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process</i>, vol. 11. Düren: Shaker Verlag GmbH, 2019.","short":"S. Josupeit, On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process, Shaker Verlag GmbH, Düren, 2019.","bibtex":"@book{Josupeit_2019, place={Düren}, series={Forschungsberichte des Direct Manufacturing Research Centers}, title={On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process}, volume={11}, publisher={Shaker Verlag GmbH}, author={Josupeit, Stefan}, year={2019}, collection={Forschungsberichte des Direct Manufacturing Research Centers} }","mla":"Josupeit, Stefan. <i>On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process</i>. Shaker Verlag GmbH, 2019.","apa":"Josupeit, S. (2019). <i>On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process</i> (Vol. 11). Shaker Verlag GmbH."},"intvolume":"        11","page":"178","publication_identifier":{"isbn":["978-3-8440-6720-0"]},"main_file_link":[{"url":"https://www.shaker.de/de/content/catalogue/index.asp?lang=de&ID=8&ISBN=978-3-8440-6720-0&search=yes"}],"date_updated":"2022-01-06T06:56:34Z","supervisor":[{"id":"464","full_name":"Schmid, Hans-Joachim","last_name":"Schmid","first_name":"Hans-Joachim"}],"author":[{"first_name":"Stefan","last_name":"Josupeit","full_name":"Josupeit, Stefan"}],"volume":11}]