Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC Composites
The 2.5D C<sub>f</sub>/SiC composite is a typical heterogeneous material with the characteristics of anisotropy, which makes it difficult to predict the size and damage removed by the traditional contact removal process. This paper adopted the ultraviolet nanosecond laser to ablate the C...
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MDPI AG
2023-01-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/2/223 |
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| author | Tangyong Zhang Fei Liu Yao Liu Chongjun Wu Steven Y. Liang |
| author_facet | Tangyong Zhang Fei Liu Yao Liu Chongjun Wu Steven Y. Liang |
| author_sort | Tangyong Zhang |
| collection | DOAJ |
| description | The 2.5D C<sub>f</sub>/SiC composite is a typical heterogeneous material with the characteristics of anisotropy, which makes it difficult to predict the size and damage removed by the traditional contact removal process. This paper adopted the ultraviolet nanosecond laser to ablate the C<sub>f</sub>/SiC composites by considering the heterogeneous structure’s effect. The ablated groove topography and size prediction are effective in revealing the machined quality with predictable groove sizes. The effects of laser processing parameters on the groove morphology and surface thermally affected zone are investigated with the thermal removal mechanism. A regression model is established by considering the scanning times, scanning speed, laser power and pulse width as the main variables. In the regression models, the relative error values are all below 10%. It is revealed that the groove width diminishes with the scanning speed and increases as the laser power increases. However, the influence of the scanning times and pulse width is small, and the overall variation range is within ±10 μm. The results show that the arrangement direction of carbon fibers has an impact on laser processing, especially when the pulse width is 0.25 μs, upon which the opposite change occurs. Carbon fiber grooves are not obvious and are barely observed in the laser processing of the parallel carbon fiber direction, and the grooves are slightly uneven. This study could be helpful in analyzing the grooves of C<sub>f</sub>/SiC affected by the laser processing process, which could support the hybrid machining of the C<sub>f</sub>/SiC composites. |
| first_indexed | 2024-03-11T08:59:25Z |
| format | Article |
| id | doaj.art-e9a43fc8b04949949d319abab00c4919 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T08:59:25Z |
| publishDate | 2023-01-01 |
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| series | Crystals |
| spelling | doaj.art-e9a43fc8b04949949d319abab00c49192023-11-16T19:55:11ZengMDPI AGCrystals2073-43522023-01-0113222310.3390/cryst13020223Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC CompositesTangyong Zhang0Fei Liu1Yao Liu2Chongjun Wu3Steven Y. Liang4College of Mechanical Engineering, Donghua University, Shanghai 201620, ChinaCollege of Mechanical Engineering, Donghua University, Shanghai 201620, ChinaShanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, ChinaCollege of Mechanical Engineering, Donghua University, Shanghai 201620, ChinaManufacturing Research Center, Georgia Institute of Technology, Atlanta, GA 30332, USAThe 2.5D C<sub>f</sub>/SiC composite is a typical heterogeneous material with the characteristics of anisotropy, which makes it difficult to predict the size and damage removed by the traditional contact removal process. This paper adopted the ultraviolet nanosecond laser to ablate the C<sub>f</sub>/SiC composites by considering the heterogeneous structure’s effect. The ablated groove topography and size prediction are effective in revealing the machined quality with predictable groove sizes. The effects of laser processing parameters on the groove morphology and surface thermally affected zone are investigated with the thermal removal mechanism. A regression model is established by considering the scanning times, scanning speed, laser power and pulse width as the main variables. In the regression models, the relative error values are all below 10%. It is revealed that the groove width diminishes with the scanning speed and increases as the laser power increases. However, the influence of the scanning times and pulse width is small, and the overall variation range is within ±10 μm. The results show that the arrangement direction of carbon fibers has an impact on laser processing, especially when the pulse width is 0.25 μs, upon which the opposite change occurs. Carbon fiber grooves are not obvious and are barely observed in the laser processing of the parallel carbon fiber direction, and the grooves are slightly uneven. This study could be helpful in analyzing the grooves of C<sub>f</sub>/SiC affected by the laser processing process, which could support the hybrid machining of the C<sub>f</sub>/SiC composites.https://www.mdpi.com/2073-4352/13/2/2232.5-dimensional C<sub>f</sub>/SiC compositesnanosecond lasergroove morphologythermally affected zone |
| spellingShingle | Tangyong Zhang Fei Liu Yao Liu Chongjun Wu Steven Y. Liang Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC Composites Crystals 2.5-dimensional C<sub>f</sub>/SiC composites nanosecond laser groove morphology thermally affected zone |
| title | Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC Composites |
| title_full | Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC Composites |
| title_fullStr | Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC Composites |
| title_full_unstemmed | Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC Composites |
| title_short | Ultraviolet Nanosecond Laser-Ablated Groove Analysis of 2.5D C<sub>f</sub>/SiC Composites |
| title_sort | ultraviolet nanosecond laser ablated groove analysis of 2 5d c sub f sub sic composites |
| topic | 2.5-dimensional C<sub>f</sub>/SiC composites nanosecond laser groove morphology thermally affected zone |
| url | https://www.mdpi.com/2073-4352/13/2/223 |
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