--- _id: '46451' 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.' author: - first_name: Iris full_name: Gräßler, Iris id: '47565' last_name: Gräßler orcid: 0000-0001-5765-971X - first_name: Iryna full_name: Mozgova, Iryna id: '95903' last_name: Mozgova - first_name: Jens full_name: Pottebaum, Jens id: '405' last_name: Pottebaum orcid: http://orcid.org/0000-0001-8778-2989 - first_name: Manuel full_name: Ott, Manuel id: '44204' last_name: Ott - first_name: Philipp full_name: Jung, Philipp last_name: Jung - first_name: Philipp full_name: Hesse, Philipp id: '60633' last_name: Hesse citation: 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: Teti R, ed. Procedia CIRP ICME. Elsevier; 2023.' apa: Gräßler, I., Mozgova, I., Pottebaum, J., Ott, M., Jung, P., & Hesse, P. (2023). Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique. In R. Teti (Ed.), Procedia CIRP ICME. Elsevier. bibtex: '@inproceedings{Gräßler_Mozgova_Pottebaum_Ott_Jung_Hesse_2023, title={Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique}, booktitle={Procedia CIRP ICME}, publisher={Elsevier}, author={Gräßler, Iris and Mozgova, Iryna and Pottebaum, Jens and Ott, Manuel and Jung, Philipp and Hesse, Philipp}, editor={Teti, Roberto}, year={2023} }' 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 Procedia CIRP ICME, edited by Roberto Teti. Elsevier, 2023. 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 Procedia CIRP ICME, Gulf of Naples, 2023. mla: Gräßler, Iris, et al. “Handling of Uncertainties in the Design of Sustainable Additive Manufacturing Products by Merging Design-for-X and Scenario-Technique.” Procedia CIRP ICME, edited by Roberto Teti, Elsevier, 2023. short: 'I. Gräßler, I. Mozgova, J. Pottebaum, M. Ott, P. Jung, P. Hesse, in: R. Teti (Ed.), Procedia CIRP ICME, Elsevier, 2023.' conference: end_date: 2023-07-14 location: Gulf of Naples name: 17th CIRP Conference on Intelligent Computation in Manufacturing Engineering start_date: 2023-07-11 date_created: 2023-08-08T07:42:04Z date_updated: 2023-08-23T13:58:13Z department: - _id: '152' - _id: '741' editor: - first_name: Roberto full_name: Teti, Roberto last_name: Teti keyword: - Design-for-X - Scenario-Technique - sustainability - uncertainty - Life-Cycle Engineering - Additive Manufacturing - Circular Economy language: - iso: eng publication: Procedia CIRP ICME publisher: Elsevier quality_controlled: '1' status: public title: Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique type: conference user_id: '405' year: '2023' ... --- _id: '46862' abstract: - lang: eng 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. author: - first_name: Fabian full_name: Neitzel, Fabian id: '72307' last_name: Neitzel orcid: '0009-0004-8412-3645 ' - first_name: Ivo full_name: Kletetzka, Ivo id: '50769' last_name: Kletetzka - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 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. Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium. ; 2023.' apa: 'Neitzel, F., Kletetzka, I., & Schmid, H.-J. (2023). Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis. In J. Beaman (Ed.), Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium.' 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}, 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} }' chicago: 'Neitzel, Fabian, Ivo Kletetzka, and Hans-Joachim Schmid. “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis.” In Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, edited by Joseph Beaman. Laboratory for Freeform Fabrication and University of Texas, Austin, 2023.' ieee: 'F. Neitzel, I. Kletetzka, and H.-J. Schmid, “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis,” in Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, Austin, 2023.' mla: 'Neitzel, Fabian, et al. “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis.” Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, edited by Joseph Beaman, 2023.' 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.' conference: end_date: 2023-08-16 location: Austin name: 34th Annual International Solid Freeform Fabrication Symposium start_date: 2023-08-14 date_created: 2023-09-07T12:11:51Z date_updated: 2024-01-24T09:30:57Z department: - _id: '150' - _id: '219' - _id: '624' - _id: '9' editor: - first_name: Joseph full_name: Beaman, Joseph last_name: Beaman keyword: - Additive Manufacturing - Laser Sintering - Flame Retardant - Polyamide 12 language: - iso: eng main_file_link: - open_access: '1' url: https://www.sffsymposium.org/ oa: '1' place: Laboratory for Freeform Fabrication and University of Texas, Austin publication: Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium publication_status: published quality_controlled: '1' status: public title: 'Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis' type: conference user_id: '72307' year: '2023' ... --- _id: '51218' abstract: - lang: eng 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. ' author: - first_name: Ivo full_name: Kletetzka, Ivo id: '50769' last_name: Kletetzka - first_name: Fabian full_name: Neitzel, Fabian id: '72307' last_name: Neitzel orcid: '0009-0004-8412-3645 ' - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 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. Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium. ; 2023.' apa: Kletetzka, I., Neitzel, F., & 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.), Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium. 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}, 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} }' 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 Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, edited by Joseph Beaman. Laboratory for Freeform Fabrication and University of Texas, Austin, 2023. 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 Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, Austin, 2023. mla: Kletetzka, Ivo, et al. “Assessing the Impact of the Powder Production Method on Ceramic-Filled Polyamide Composites Made by Laser Sintering.” Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, edited by Joseph Beaman, 2023. 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.' conference: end_date: 2023-08-16 location: Austin name: 34th Annual International Solid Freeform Fabrication Symposium start_date: 2023-08-14 date_created: 2024-02-07T13:59:25Z date_updated: 2024-02-07T13:59:35Z department: - _id: '150' - _id: '219' - _id: '624' - _id: '9' editor: - first_name: Joseph full_name: Beaman, Joseph last_name: Beaman keyword: - Additive Manufacturing - Laser Sintering - Filled Materials - Composites - Polyamide 613 language: - iso: eng main_file_link: - open_access: '1' url: https://www.sffsymposium.org/ oa: '1' place: Laboratory for Freeform Fabrication and University of Texas, Austin publication: Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium publication_status: published quality_controlled: '1' status: public title: Assessing the Impact of the Powder Production Method on Ceramic-filled Polyamide Composites made by Laser Sintering type: conference user_id: '72307' year: '2023' ... --- _id: '46745' abstract: - lang: eng text: To ensure uniform documentation of support structure information, a concept is presented that enables a standardized depiction of support structures in technical drawings based on ISO 128-3. To this end, requirements for a uniform depiction are defined and a procedure for drawing entry is presented. The drawing entry should contain all production-relevant support structure information. The standardized documentation of support structure information in technical drawings is intended to ensure a simple, clear and safe exchange of information between business units or different companies along the value chain. As a result a possible drawing entry of support structures was developed. To distinguish between different support structure types, a standardized depiction of geometrical information in a specification field is shown. The specification field gives a detailed description of the support structure type, the geometry as well as the connection to the part and the building platform. Also uncommon support types like lattice structures or CAD based support structures can be implemented. To ensure the usability the depiction is editable and extendable. author: - first_name: Stefan full_name: Lammers, Stefan id: '13835' last_name: Lammers - first_name: Thorsten full_name: Koers, Thorsten id: '38077' last_name: Koers - first_name: Balázs full_name: Magyar, Balázs id: '97759' last_name: Magyar - first_name: Detmar full_name: Zimmer, Detmar last_name: Zimmer - first_name: Tobias full_name: Lieneke, Tobias id: '13956' last_name: Lieneke citation: ama: 'Lammers S, Koers T, Magyar B, Zimmer D, Lieneke T. Depiction of support structures in technical drawings. In: ; 2023.' apa: Lammers, S., Koers, T., Magyar, B., Zimmer, D., & Lieneke, T. (2023). Depiction of support structures in technical drawings. 34th Annual Solid Freeform Fabrication Symposium, Austin, TExas, USA. bibtex: '@inproceedings{Lammers_Koers_Magyar_Zimmer_Lieneke_2023, place={Austin, Texas, USA}, title={Depiction of support structures in technical drawings}, author={Lammers, Stefan and Koers, Thorsten and Magyar, Balázs and Zimmer, Detmar and Lieneke, Tobias}, year={2023} }' chicago: Lammers, Stefan, Thorsten Koers, Balázs Magyar, Detmar Zimmer, and Tobias Lieneke. “Depiction of Support Structures in Technical Drawings.” Austin, Texas, USA, 2023. ieee: S. Lammers, T. Koers, B. Magyar, D. Zimmer, and T. Lieneke, “Depiction of support structures in technical drawings,” presented at the 34th Annual Solid Freeform Fabrication Symposium, Austin, TExas, USA, 2023. mla: Lammers, Stefan, et al. Depiction of Support Structures in Technical Drawings. 2023. short: 'S. Lammers, T. Koers, B. Magyar, D. Zimmer, T. Lieneke, in: Austin, Texas, USA, 2023.' conference: end_date: 2023-08-16 location: Austin, TExas, USA name: 34th Annual Solid Freeform Fabrication Symposium start_date: 2023-08-14 date_created: 2023-08-28T13:55:45Z date_updated: 2024-03-27T15:23:19Z keyword: - additive manufacturing - support structures language: - iso: eng place: Austin, Texas, USA status: public title: Depiction of support structures in technical drawings type: conference user_id: '13956' year: '2023' ... --- _id: '36866' 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." author: - first_name: Manuel full_name: Ott, Manuel id: '44204' last_name: Ott - first_name: Niclas full_name: Meihöfener, Niclas last_name: Meihöfener - first_name: Rainer full_name: Koch, Rainer last_name: Koch citation: 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. Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen. Vol 7. Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen. ; 2022:91-106. doi:10.48447/ADD-2022-014' apa: Ott, M., Meihöfener, N., & Koch, R. (2022). Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien. In Deutscher Verband für Materialforschung und -prüfung e.V. (Ed.), Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen (Vol. 7, pp. 91–106). https://doi.org/10.48447/ADD-2022-014 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={10.48447/ADD-2022-014}, 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} }' chicago: Ott, Manuel, Niclas Meihöfener, and Rainer Koch. “Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien.” In Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen, 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. https://doi.org/10.48447/ADD-2022-014. ieee: 'M. Ott, N. Meihöfener, and R. Koch, “Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien,” in Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen, Berlin, 2022, vol. 7, pp. 91–106, doi: 10.48447/ADD-2022-014.' mla: Ott, Manuel, et al. “Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien.” Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen, edited by Deutscher Verband für Materialforschung und -prüfung e.V. , vol. 7, 2022, pp. 91–106, doi:10.48447/ADD-2022-014. 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.' conference: end_date: 2022-11-09 location: Berlin name: 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen start_date: 2022-11-08 corporate_editor: - 'Deutscher Verband für Materialforschung und -prüfung e.V. ' date_created: 2023-01-16T08:42:28Z date_updated: 2023-01-18T08:52:56Z department: - _id: '741' - _id: '144' doi: 10.48447/ADD-2022-014 intvolume: ' 7' jel: - L74 keyword: - Künstliche Intelligenz - Neuronale Netze - 3D-Druck - Design for Additive Manufacturing language: - iso: ger page: 91-106 place: Berlin publication: Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen publication_status: published series_title: Bericht 407 - 7. Tagung des DVM-Arbeitskreises Additiv gefertigte Bauteile und Strukturen status: public title: Neuronale Netze in der Konstruktion zur Ausschöpfung der Potentiale additiver Fertigungstechnologien type: conference user_id: '44204' volume: 7 year: '2022' ... --- _id: '24426' author: - first_name: Stefan full_name: Urbanek, Stefan last_name: Urbanek - first_name: Frey full_name: Pauline, Frey last_name: Pauline - first_name: Sebastian full_name: Magerkohl, Sebastian id: '28520' last_name: Magerkohl - first_name: Detmar full_name: Zimmer, Detmar id: '604' last_name: Zimmer - 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 citation: ama: 'Urbanek S, Pauline F, Magerkohl S, et al. Design and Experimental Investigation of an Additively Manufactured PMSM Rotor. In: ; 2021. doi:10.1109/IEMDC47953.2021.9449566' apa: Urbanek, S., Pauline, F., Magerkohl, S., Zimmer, D., Tasche, L., Schaper, M., & Ponick, B. (2021). Design and Experimental Investigation of an Additively Manufactured PMSM Rotor. https://doi.org/10.1109/IEMDC47953.2021.9449566 bibtex: '@inproceedings{Urbanek_Pauline_Magerkohl_Zimmer_Tasche_Schaper_Ponick_2021, title={Design and Experimental Investigation of an Additively Manufactured PMSM Rotor}, DOI={10.1109/IEMDC47953.2021.9449566}, author={Urbanek, Stefan and Pauline, Frey and Magerkohl, Sebastian and Zimmer, Detmar and Tasche, Lennart and Schaper, Mirko and Ponick, Bernd}, year={2021} }' 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. https://doi.org/10.1109/IEMDC47953.2021.9449566. ieee: 'S. Urbanek et al., “Design and Experimental Investigation of an Additively Manufactured PMSM Rotor,” Connecticut, USA, 2021, doi: 10.1109/IEMDC47953.2021.9449566.' mla: Urbanek, Stefan, et al. Design and Experimental Investigation of an Additively Manufactured PMSM Rotor. 2021, doi:10.1109/IEMDC47953.2021.9449566. short: 'S. Urbanek, F. Pauline, S. Magerkohl, D. Zimmer, L. Tasche, M. Schaper, B. Ponick, in: 2021.' conference: end_date: 2021-05-20 location: Connecticut, USA start_date: 2021-05-17 date_created: 2021-09-14T13:12:32Z date_updated: 2022-01-06T06:56:20Z department: - _id: '146' - _id: '158' doi: 10.1109/IEMDC47953.2021.9449566 keyword: - Elektromotor - Elektromaschine - Additive Fertigung - AF - AM - Additive Manufacturing - DMRC - KAt language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/document/9449566 publication_status: published status: public title: Design and Experimental Investigation of an Additively Manufactured PMSM Rotor type: conference user_id: '28520' year: '2021' ... --- _id: '24589' abstract: - lang: eng 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." article_number: '109677' article_type: original author: - first_name: Evgeny full_name: Zhuravlev, Evgeny last_name: Zhuravlev - first_name: Benjamin full_name: Milkereit, Benjamin last_name: Milkereit - first_name: Bin full_name: Yang, Bin last_name: Yang - first_name: Steffen full_name: Heiland, Steffen last_name: Heiland - first_name: Pascal full_name: Vieth, Pascal last_name: Vieth - first_name: Markus full_name: Voigt, Markus last_name: Voigt - first_name: Mirko full_name: Schaper, Mirko last_name: Schaper - first_name: Guido full_name: Grundmeier, Guido last_name: Grundmeier - first_name: Christoph full_name: Schick, Christoph last_name: Schick - first_name: Olaf full_name: Kessler, Olaf last_name: Kessler citation: ama: Zhuravlev E, Milkereit B, Yang B, et al. Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry. Materials & Design. Published online 2021. doi:10.1016/j.matdes.2021.109677 apa: Zhuravlev, E., Milkereit, B., Yang, B., Heiland, S., Vieth, P., Voigt, M., Schaper, M., Grundmeier, G., Schick, C., & Kessler, O. (2021). Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry. Materials & Design, Article 109677. https://doi.org/10.1016/j.matdes.2021.109677 bibtex: '@article{Zhuravlev_Milkereit_Yang_Heiland_Vieth_Voigt_Schaper_Grundmeier_Schick_Kessler_2021, title={Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry}, DOI={10.1016/j.matdes.2021.109677}, number={109677}, journal={Materials & Design}, author={Zhuravlev, Evgeny and Milkereit, Benjamin and Yang, Bin and Heiland, Steffen and Vieth, Pascal and Voigt, Markus and Schaper, Mirko and Grundmeier, Guido and Schick, Christoph and Kessler, Olaf}, year={2021} }' chicago: Zhuravlev, Evgeny, Benjamin Milkereit, Bin Yang, Steffen Heiland, Pascal Vieth, Markus Voigt, Mirko Schaper, Guido Grundmeier, Christoph Schick, and Olaf Kessler. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.” Materials & Design, 2021. https://doi.org/10.1016/j.matdes.2021.109677. ieee: 'E. Zhuravlev et al., “Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry,” Materials & Design, Art. no. 109677, 2021, doi: 10.1016/j.matdes.2021.109677.' mla: Zhuravlev, Evgeny, et al. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.” Materials & Design, 109677, 2021, doi:10.1016/j.matdes.2021.109677. short: E. Zhuravlev, B. Milkereit, B. Yang, S. Heiland, P. Vieth, M. Voigt, M. Schaper, G. Grundmeier, C. Schick, O. Kessler, Materials & Design (2021). date_created: 2021-09-17T08:38:58Z date_updated: 2022-01-06T06:56:29Z department: - _id: '9' - _id: '158' - _id: '219' doi: 10.1016/j.matdes.2021.109677 keyword: - Aluminium alloy 7075 - Differential fast scanning calorimetry - Solidification - Undercooling - Additive manufacturing language: - iso: eng publication: Materials & Design publication_identifier: issn: - 0264-1275 publication_status: published status: public title: Assessment of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by differential fast scanning calorimetry type: journal_article user_id: '77250' year: '2021' ... --- _id: '21209' abstract: - lang: ger 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." author: - first_name: Dominik full_name: Ahlers, Dominik id: '11207' last_name: Ahlers citation: ama: Ahlers D. Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V . Vol 19. Shaker; 2020. apa: Ahlers, D. (2020). Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V (Vol. 19). Shaker. 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} }' chicago: Ahlers, Dominik. Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V . Vol. 19. Forschungsberichte des Direct Manufacturing Research Centers. Shaker, 2020. ieee: D. Ahlers, Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V , vol. 19. Shaker, 2020. mla: Ahlers, Dominik. Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V . Vol. 19, Shaker, 2020. short: D. Ahlers, Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V , Shaker, 2020. date_created: 2021-02-12T09:15:01Z date_updated: 2022-01-06T06:54:49Z department: - _id: '9' - _id: '149' - _id: '321' - _id: '219' intvolume: ' 19' keyword: - Additive Manufacturing - SLM language: - iso: ger page: '137' publication_identifier: isbn: - 978-3844074246 - '3844074244' publication_status: published publisher: Shaker series_title: Forschungsberichte des Direct Manufacturing Research Centers status: public title: 'Parameter- und Prozessoptimierung für den additiven Fertigungsprozess im Pulverbett am Beispiel der Legierung Ti6Al4V ' type: dissertation user_id: '11207' volume: 19 year: '2020' ... --- _id: '24753' 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. author: - first_name: Stefan full_name: Josupeit, Stefan last_name: Josupeit citation: ama: Josupeit S. On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process. Vol 11. Shaker Verlag GmbH; 2019. apa: Josupeit, S. (2019). On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process (Vol. 11). Shaker Verlag GmbH. 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} }' chicago: 'Josupeit, Stefan. On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process. Vol. 11. Forschungsberichte Des Direct Manufacturing Research Centers. Düren: Shaker Verlag GmbH, 2019.' ieee: 'S. Josupeit, On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process, vol. 11. Düren: Shaker Verlag GmbH, 2019.' mla: Josupeit, Stefan. On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process. 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. date_created: 2021-09-21T11:23:29Z date_updated: 2022-01-06T06:56:34Z department: - _id: '150' - _id: '624' - _id: '219' intvolume: ' 11' keyword: - Additive Manufacturing - Polymer Laser Sintering - Polymer Science language: - iso: eng 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 page: '178' place: Düren publication_identifier: isbn: - 978-3-8440-6720-0 publisher: Shaker Verlag GmbH series_title: Forschungsberichte des Direct Manufacturing Research Centers status: public supervisor: - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid title: On the Influence of Thermal Histories within Part Cakes on the Polymer Laser Sintering Process type: dissertation user_id: '71545' volume: 11 year: '2019' ...