Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625
This paper presents an experimental study on the influence of the main Laser Powder Bed Fusion (PBF-LB) process parameters on the density and surface quality of the IN 625 superalloy manufactured using the Lasertec 30 SLM machine. Parameters’ influence was investigated within a workspace defined by...
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| Format: | Article |
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MDPI AG
2022-08-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/16/5777 |
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| author | Alexandru Paraschiv Gheorghe Matache Mihaela Raluca Condruz Tiberius Florian Frigioescu Laurent Pambaguian |
| author_facet | Alexandru Paraschiv Gheorghe Matache Mihaela Raluca Condruz Tiberius Florian Frigioescu Laurent Pambaguian |
| author_sort | Alexandru Paraschiv |
| collection | DOAJ |
| description | This paper presents an experimental study on the influence of the main Laser Powder Bed Fusion (PBF-LB) process parameters on the density and surface quality of the IN 625 superalloy manufactured using the Lasertec 30 SLM machine. Parameters’ influence was investigated within a workspace defined by the laser power (150–400 W), scanning speed (500–900 m/s), scanning strategy (90° and 67°), layer thickness (30–70 µm), and hatch distance (0.09–0.12 µm). Experimental results showed that laser power and scanning speed play a determining role in producing a relative density higher than 99.5% of the material’s theoretical density. A basic set of process parameters was selected for generating high-density material: laser power 250 W, laser speed 750 mm/s, layer thickness 40 µm, and hatch distance 0.11 mm. The 67° scanning strategy ensures higher roughness surfaces than the 90° scanning strategy, roughness that increases as the laser power increases and the laser speed decreases. |
| first_indexed | 2024-03-09T09:52:33Z |
| format | Article |
| id | doaj.art-12dab064233b438eaaabcde1a242be64 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T09:52:33Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-12dab064233b438eaaabcde1a242be642023-12-01T23:57:04ZengMDPI AGMaterials1996-19442022-08-011516577710.3390/ma15165777Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625Alexandru Paraschiv0Gheorghe Matache1Mihaela Raluca Condruz2Tiberius Florian Frigioescu3Laurent Pambaguian4National Research and Development Institute for Gas Turbines COMOTI, 220D Iuliu Maniu Avenue, 061126 Bucharest, RomaniaNational Research and Development Institute for Gas Turbines COMOTI, 220D Iuliu Maniu Avenue, 061126 Bucharest, RomaniaNational Research and Development Institute for Gas Turbines COMOTI, 220D Iuliu Maniu Avenue, 061126 Bucharest, RomaniaNational Research and Development Institute for Gas Turbines COMOTI, 220D Iuliu Maniu Avenue, 061126 Bucharest, RomaniaEuropean Space Research and Technology Centre (ESA-ESTEC), Mechanical Department, European Space Agency, 2200 AG Noordwijk, The NetherlandsThis paper presents an experimental study on the influence of the main Laser Powder Bed Fusion (PBF-LB) process parameters on the density and surface quality of the IN 625 superalloy manufactured using the Lasertec 30 SLM machine. Parameters’ influence was investigated within a workspace defined by the laser power (150–400 W), scanning speed (500–900 m/s), scanning strategy (90° and 67°), layer thickness (30–70 µm), and hatch distance (0.09–0.12 µm). Experimental results showed that laser power and scanning speed play a determining role in producing a relative density higher than 99.5% of the material’s theoretical density. A basic set of process parameters was selected for generating high-density material: laser power 250 W, laser speed 750 mm/s, layer thickness 40 µm, and hatch distance 0.11 mm. The 67° scanning strategy ensures higher roughness surfaces than the 90° scanning strategy, roughness that increases as the laser power increases and the laser speed decreases.https://www.mdpi.com/1996-1944/15/16/5777IN 625AMPBF-LBdensityballingprocess parameters |
| spellingShingle | Alexandru Paraschiv Gheorghe Matache Mihaela Raluca Condruz Tiberius Florian Frigioescu Laurent Pambaguian Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625 Materials IN 625 AM PBF-LB density balling process parameters |
| title | Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625 |
| title_full | Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625 |
| title_fullStr | Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625 |
| title_full_unstemmed | Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625 |
| title_short | Laser Powder Bed Fusion Process Parameters’ Optimization for Fabrication of Dense IN 625 |
| title_sort | laser powder bed fusion process parameters optimization for fabrication of dense in 625 |
| topic | IN 625 AM PBF-LB density balling process parameters |
| url | https://www.mdpi.com/1996-1944/15/16/5777 |
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