Suitableness of SLM Manufactured Turbine Blade for Aerodynamical Tests
This paper describes some insights on applicability of a Selective Laser Melting and Direct Metal Laser Sintering technology-manufactured turbine blade models for aerodynamic tests in a wind tunnel. The principal idea behind this research was to assess the possibilities of using ‘raw’ DLMS printed t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/7/2866 |
| _version_ | 1797607493319262208 |
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| author | Janusz Telega Piotr Kaczynski Małgorzata A. Śmiałek Piotr Pawlowski Ryszard Szwaba |
| author_facet | Janusz Telega Piotr Kaczynski Małgorzata A. Śmiałek Piotr Pawlowski Ryszard Szwaba |
| author_sort | Janusz Telega |
| collection | DOAJ |
| description | This paper describes some insights on applicability of a Selective Laser Melting and Direct Metal Laser Sintering technology-manufactured turbine blade models for aerodynamic tests in a wind tunnel. The principal idea behind this research was to assess the possibilities of using ‘raw’ DLMS printed turbine blade models for gas-flow experiments. The actual blade, manufactured using the DLMS technology, is assessed in terms of surface quality (roughness), geometrical shape and size (outline), quality of counterbores and quality of small diameter holes. The results are evaluated for the experimental aerodynamics standpoint. This field of application imposes requirements that have not yet been described in the literature. The experimental outcomes prove the surface quality does not suffice to conduct quantitative experiments. The holes that are necessary for pressure measurements in wind tunnel experiments cannot be reduced below 1 mm in diameter. The dimensional discrepancies are on the level beyond acceptable. Additionally, the problem of ‘reversed tolerance’, with the material building up and distorting the design, is visible in elements printed with the DLMS technology. The results indicate the necessity of post-machining of the printed elements prior their experimental usage, as their features in the ‘as fabricated’ state significantly disturb the flow conditions. |
| first_indexed | 2024-03-11T05:31:49Z |
| format | Article |
| id | doaj.art-6e3da264763e482ca67912ccfc83bbb6 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T05:31:49Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-6e3da264763e482ca67912ccfc83bbb62023-11-17T17:06:18ZengMDPI AGMaterials1996-19442023-04-01167286610.3390/ma16072866Suitableness of SLM Manufactured Turbine Blade for Aerodynamical TestsJanusz Telega0Piotr Kaczynski1Małgorzata A. Śmiałek2Piotr Pawlowski3Ryszard Szwaba4Institute of Fluid Flow Machinery Polish Academy of Sciences (IMP PAN), Fiszera 14, 80-231 Gdansk, PolandInstitute of Fluid Flow Machinery Polish Academy of Sciences (IMP PAN), Fiszera 14, 80-231 Gdansk, PolandFaculty of Mechanical Engineering and Ship Technology, Institute of Naval Architecture and Ocean Engineering, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, PolandInstitute of Fundamental Technological Research Polish Academy of Sciences (IPPT PAN), Pawinskiego 5B, 02-106 Warsaw, PolandInstitute of Fluid Flow Machinery Polish Academy of Sciences (IMP PAN), Fiszera 14, 80-231 Gdansk, PolandThis paper describes some insights on applicability of a Selective Laser Melting and Direct Metal Laser Sintering technology-manufactured turbine blade models for aerodynamic tests in a wind tunnel. The principal idea behind this research was to assess the possibilities of using ‘raw’ DLMS printed turbine blade models for gas-flow experiments. The actual blade, manufactured using the DLMS technology, is assessed in terms of surface quality (roughness), geometrical shape and size (outline), quality of counterbores and quality of small diameter holes. The results are evaluated for the experimental aerodynamics standpoint. This field of application imposes requirements that have not yet been described in the literature. The experimental outcomes prove the surface quality does not suffice to conduct quantitative experiments. The holes that are necessary for pressure measurements in wind tunnel experiments cannot be reduced below 1 mm in diameter. The dimensional discrepancies are on the level beyond acceptable. Additionally, the problem of ‘reversed tolerance’, with the material building up and distorting the design, is visible in elements printed with the DLMS technology. The results indicate the necessity of post-machining of the printed elements prior their experimental usage, as their features in the ‘as fabricated’ state significantly disturb the flow conditions.https://www.mdpi.com/1996-1944/16/7/2866rapid prototypingSelective Laser Melting SLMDirect Metal Laser Sintering (DLMS) technologyadditive manufacturingcompressor bladeexperimental aerodynamics |
| spellingShingle | Janusz Telega Piotr Kaczynski Małgorzata A. Śmiałek Piotr Pawlowski Ryszard Szwaba Suitableness of SLM Manufactured Turbine Blade for Aerodynamical Tests Materials rapid prototyping Selective Laser Melting SLM Direct Metal Laser Sintering (DLMS) technology additive manufacturing compressor blade experimental aerodynamics |
| title | Suitableness of SLM Manufactured Turbine Blade for Aerodynamical Tests |
| title_full | Suitableness of SLM Manufactured Turbine Blade for Aerodynamical Tests |
| title_fullStr | Suitableness of SLM Manufactured Turbine Blade for Aerodynamical Tests |
| title_full_unstemmed | Suitableness of SLM Manufactured Turbine Blade for Aerodynamical Tests |
| title_short | Suitableness of SLM Manufactured Turbine Blade for Aerodynamical Tests |
| title_sort | suitableness of slm manufactured turbine blade for aerodynamical tests |
| topic | rapid prototyping Selective Laser Melting SLM Direct Metal Laser Sintering (DLMS) technology additive manufacturing compressor blade experimental aerodynamics |
| url | https://www.mdpi.com/1996-1944/16/7/2866 |
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