Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 28th Annual International Solid Freeform Fabrication Symposium |
| Subtitle of host publication | an Additive Manufacturing Conference - 2017 : August 7-9, 2017, The University of Texas at Austin, Austin, Texas, USA |
| Place of Publication | Austin |
| Publisher | University of Texas at Austin |
| Pages | 2516-2529 |
| Number of pages | 14 |
| Publication status | Published - 2017 |
| Event | 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017 - Austin, United States Duration: 7 Aug 2017 → 9 Aug 2017 |
Abstract
In the course of the industrialization of the Additive Manufacturing (AM) process of metallic components, the surface finish of the final parts is a key milestone. 'As-built' AM surfaces feature a high initial surface roughness (i.e. Ra > 10 µm), which often exceeds the specification for technical applications. In order to apply AM for highly stressed and cyclically loaded components, the as-built surface roughness needs to be reduced. Since conventional surface finishing processes as machining or blasting often show a limited applicability to complex shaped AM parts, an enhanced electrolytic polishing process was developed (3D SurFin®). Within the present study, Ti-6Al-4V AM plates and fatigue samples were produced in a powder bed laser beam system. The enhanced electrolytic polishing process led to a significant roughness decrease of approximately 84 % for a treatment time of 60 min. Also, a notable improvement of the fatigue performance of 174 % was achieved after a treatment time of 40 min in comparison to the as-built reference samples.
ASJC Scopus subject areas
- Materials Science(all)
- Surfaces, Coatings and Films
- Physics and Astronomy(all)
- Surfaces and Interfaces
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Proceedings of the 28th Annual International Solid Freeform Fabrication Symposium: an Additive Manufacturing Conference - 2017 : August 7-9, 2017, The University of Texas at Austin, Austin, Texas, USA. Austin: University of Texas at Austin, 2017. p. 2516-2529.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Electrochemical enhancement of the surface morphology and the fatigue performance of Ti-6Al-4V parts manufactured by laser beam melting
AU - Bagehorn, S.
AU - Wehr, J.
AU - Nixon, S.
AU - Balastrier, A.
AU - Mertens, T.
AU - Maier, H. J.
N1 - Funding information: The present study was supported by the German aeronautic research program (LuFo) within the framework of the project GenFLY. The authors thank the project sponsor Airbus, as well as the corresponding project partners Liebherr Aerospace and Fraunhofer ILT. The corresponding author also thanks Norbert Schupp, Max Kolb, Vitus Holzinger, Christian Plander and Freerk Syassen for their support.
PY - 2017
Y1 - 2017
N2 - In the course of the industrialization of the Additive Manufacturing (AM) process of metallic components, the surface finish of the final parts is a key milestone. 'As-built' AM surfaces feature a high initial surface roughness (i.e. Ra > 10 µm), which often exceeds the specification for technical applications. In order to apply AM for highly stressed and cyclically loaded components, the as-built surface roughness needs to be reduced. Since conventional surface finishing processes as machining or blasting often show a limited applicability to complex shaped AM parts, an enhanced electrolytic polishing process was developed (3D SurFin®). Within the present study, Ti-6Al-4V AM plates and fatigue samples were produced in a powder bed laser beam system. The enhanced electrolytic polishing process led to a significant roughness decrease of approximately 84 % for a treatment time of 60 min. Also, a notable improvement of the fatigue performance of 174 % was achieved after a treatment time of 40 min in comparison to the as-built reference samples.
AB - In the course of the industrialization of the Additive Manufacturing (AM) process of metallic components, the surface finish of the final parts is a key milestone. 'As-built' AM surfaces feature a high initial surface roughness (i.e. Ra > 10 µm), which often exceeds the specification for technical applications. In order to apply AM for highly stressed and cyclically loaded components, the as-built surface roughness needs to be reduced. Since conventional surface finishing processes as machining or blasting often show a limited applicability to complex shaped AM parts, an enhanced electrolytic polishing process was developed (3D SurFin®). Within the present study, Ti-6Al-4V AM plates and fatigue samples were produced in a powder bed laser beam system. The enhanced electrolytic polishing process led to a significant roughness decrease of approximately 84 % for a treatment time of 60 min. Also, a notable improvement of the fatigue performance of 174 % was achieved after a treatment time of 40 min in comparison to the as-built reference samples.
UR - http://www.scopus.com/inward/record.url?scp=85085018542&partnerID=8YFLogxK
UR - http://utw10945.utweb.utexas.edu/TOC2017
M3 - Conference contribution
SP - 2516
EP - 2529
BT - Proceedings of the 28th Annual International Solid Freeform Fabrication Symposium
PB - University of Texas at Austin
CY - Austin
T2 - 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017
Y2 - 7 August 2017 through 9 August 2017
ER -