Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual Exposure
Parts produced via powder bed fusion of metal using a laser beam process often exhibit mechanical anisotropy due to the directional solidification, complicating part design. This study explores the use of ultrasonic-assistance to reduce anisotropy by promoting microstructural homogenization through...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Journal of Advanced Joining Processes |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666330925000287 |
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| author | Sebastian Platt Jan Wegner Arno Elspaß Hanna Schönrath Stefan Kleszczynski |
| author_facet | Sebastian Platt Jan Wegner Arno Elspaß Hanna Schönrath Stefan Kleszczynski |
| author_sort | Sebastian Platt |
| collection | DOAJ |
| description | Parts produced via powder bed fusion of metal using a laser beam process often exhibit mechanical anisotropy due to the directional solidification, complicating part design. This study explores the use of ultrasonic-assistance to reduce anisotropy by promoting microstructural homogenization through increased nucleation. Specimens were fabricated using a dual exposure strategy, to avoid the challenges that arise with the in-situ ultrasonic excitation of a powder bed. Furthermore, a comprehensive microstructural as well as mechanical analysis was carried out. Microstructural analysis revealed increased grain orientation variation in ultrasonically treated specimens. Mechanical testing showed improved tensile and yield strength and reduced anisotropy, with tensile and yield strength anisotropy decreasing by 55.4 % and 46.1 %, respectively. Despite increased surface roughness, ultrasonic treatment reduced anisotropy in ductility-related properties, highlighting its potential to improve the performance of additively manufactured parts by reducing anisotropy and simultaneously enhancing mechanical properties. |
| format | Article |
| id | doaj-art-e366b065226c4e80bc74bfac5fb40d66 |
| institution | Kabale University |
| issn | 2666-3309 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Advanced Joining Processes |
| spelling | doaj-art-e366b065226c4e80bc74bfac5fb40d662025-08-20T03:49:03ZengElsevierJournal of Advanced Joining Processes2666-33092025-06-011110030710.1016/j.jajp.2025.100307Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual ExposureSebastian Platt0Jan Wegner1Arno Elspaß2Hanna Schönrath3Stefan Kleszczynski4Institute for Product Engineering, University Duisburg–Essen, Lotharstr. 1, 47057 Duisburg, Germany; Corresponding author.Institute for Product Engineering, University Duisburg–Essen, Lotharstr. 1, 47057 Duisburg, Germany; Center for Nanointegration Duisburg- Essen (CENIDE), Carl-Benz-Str. 199, 47057 Duisburg, GermanyInstitute for Product Engineering, University Duisburg–Essen, Lotharstr. 1, 47057 Duisburg, GermanyInstitute for Product Engineering, University Duisburg–Essen, Lotharstr. 1, 47057 Duisburg, GermanyInstitute for Product Engineering, University Duisburg–Essen, Lotharstr. 1, 47057 Duisburg, Germany; Center for Nanointegration Duisburg- Essen (CENIDE), Carl-Benz-Str. 199, 47057 Duisburg, GermanyParts produced via powder bed fusion of metal using a laser beam process often exhibit mechanical anisotropy due to the directional solidification, complicating part design. This study explores the use of ultrasonic-assistance to reduce anisotropy by promoting microstructural homogenization through increased nucleation. Specimens were fabricated using a dual exposure strategy, to avoid the challenges that arise with the in-situ ultrasonic excitation of a powder bed. Furthermore, a comprehensive microstructural as well as mechanical analysis was carried out. Microstructural analysis revealed increased grain orientation variation in ultrasonically treated specimens. Mechanical testing showed improved tensile and yield strength and reduced anisotropy, with tensile and yield strength anisotropy decreasing by 55.4 % and 46.1 %, respectively. Despite increased surface roughness, ultrasonic treatment reduced anisotropy in ductility-related properties, highlighting its potential to improve the performance of additively manufactured parts by reducing anisotropy and simultaneously enhancing mechanical properties.http://www.sciencedirect.com/science/article/pii/S2666330925000287Additive manufacturingMechanical anisotropyMechanical propertiesPBF-LB/MUltrasoundUltrasonic Assisted |
| spellingShingle | Sebastian Platt Jan Wegner Arno Elspaß Hanna Schönrath Stefan Kleszczynski Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual Exposure Journal of Advanced Joining Processes Additive manufacturing Mechanical anisotropy Mechanical properties PBF-LB/M Ultrasound Ultrasonic Assisted |
| title | Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual Exposure |
| title_full | Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual Exposure |
| title_fullStr | Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual Exposure |
| title_full_unstemmed | Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual Exposure |
| title_short | Enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam (PBF-LB/M) via Dual Exposure |
| title_sort | enhancing mechanical properties and isotropy in ultrasonic assisted powder bed fusion of metals using a laser beam pbf lb m via dual exposure |
| topic | Additive manufacturing Mechanical anisotropy Mechanical properties PBF-LB/M Ultrasound Ultrasonic Assisted |
| url | http://www.sciencedirect.com/science/article/pii/S2666330925000287 |
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