Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion
In this study, the feasibility of commercially pure (CP)-Ti bipolar plates for fuel cells were assessed by designing, manufacturing, and evaluating thin plates fabricated through the laser powder bed fusion (L-PBF) technique. The width, height, and thickness of thin CP-Ti plates were carefully consi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/11/1840 |
| _version_ | 1797458365941547008 |
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| author | Tack Lee Ulanbek Auyeskhan Nam-Hun Kim Dong-Hyun Kim |
| author_facet | Tack Lee Ulanbek Auyeskhan Nam-Hun Kim Dong-Hyun Kim |
| author_sort | Tack Lee |
| collection | DOAJ |
| description | In this study, the feasibility of commercially pure (CP)-Ti bipolar plates for fuel cells were assessed by designing, manufacturing, and evaluating thin plates fabricated through the laser powder bed fusion (L-PBF) technique. The width, height, and thickness of thin CP-Ti plates were carefully considered in its design to ensure comprehensive evaluation. The maximum displacement was measured through blue light scanning in accordance with the building direction. The finite element model and experimental results showed that the building layer per volume has a linear relationship with the maximum displacement and maximum residual tensile stress along the building direction. Thin plates with a high aspect ratio (198 × 53 × 1.5 mm) had the lowest maximum displacement (0.205 mm) when building in the height direction and had a high correlation coefficient with the finite element model (0.936). Proper aspect ratio design and building strategy enable highly accurate manufacturing of CP-Ti thin plates for fuel cell systems. |
| first_indexed | 2024-03-09T16:37:00Z |
| format | Article |
| id | doaj.art-3f20140d1390406d9ad5a4bf0278836d |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T16:37:00Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-3f20140d1390406d9ad5a4bf0278836d2023-11-24T14:55:48ZengMDPI AGMetals2075-47012023-11-011311184010.3390/met13111840Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed FusionTack Lee0Ulanbek Auyeskhan1Nam-Hun Kim2Dong-Hyun Kim3Advanced Cutting Tool and Machining Center, Daegu Mechatronics & Materials Institute, Daegu 42715, Republic of KoreaDepartment Mechanical and Aerospace Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of KoreaDepartment Mechanical and Aerospace Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea3D Printing Manufacturing Process Center, Korea Institute of Industrial Technology, Ulsan 44776, Republic of KoreaIn this study, the feasibility of commercially pure (CP)-Ti bipolar plates for fuel cells were assessed by designing, manufacturing, and evaluating thin plates fabricated through the laser powder bed fusion (L-PBF) technique. The width, height, and thickness of thin CP-Ti plates were carefully considered in its design to ensure comprehensive evaluation. The maximum displacement was measured through blue light scanning in accordance with the building direction. The finite element model and experimental results showed that the building layer per volume has a linear relationship with the maximum displacement and maximum residual tensile stress along the building direction. Thin plates with a high aspect ratio (198 × 53 × 1.5 mm) had the lowest maximum displacement (0.205 mm) when building in the height direction and had a high correlation coefficient with the finite element model (0.936). Proper aspect ratio design and building strategy enable highly accurate manufacturing of CP-Ti thin plates for fuel cell systems.https://www.mdpi.com/2075-4701/13/11/1840additive manufacturingthin platesdeformationfinite element analysisblue light scanning |
| spellingShingle | Tack Lee Ulanbek Auyeskhan Nam-Hun Kim Dong-Hyun Kim Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion Metals additive manufacturing thin plates deformation finite element analysis blue light scanning |
| title | Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion |
| title_full | Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion |
| title_fullStr | Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion |
| title_full_unstemmed | Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion |
| title_short | Residual Stress and Dimensional Deviation in a Commercially Pure Titanium Thin Bipolar Plate for a Fuel Cell Using Laser Power Bed Fusion |
| title_sort | residual stress and dimensional deviation in a commercially pure titanium thin bipolar plate for a fuel cell using laser power bed fusion |
| topic | additive manufacturing thin plates deformation finite element analysis blue light scanning |
| url | https://www.mdpi.com/2075-4701/13/11/1840 |
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