Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix composites
Ceramic matrix composites have high hardness, so their machining requires high grinding forces that cause severe wear of the grinding head. To investigate this problem, the present study investigated the cutting performance of conventional grinding (CG) and laser-assisted grinding (LAG) of SiC _f /S...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/aca6c5 |
| _version_ | 1797746232928501760 |
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| author | Xianjun Kong Shiwen Liu Ning Hou Ming Zhao Na Liu Minghai Wang |
| author_facet | Xianjun Kong Shiwen Liu Ning Hou Ming Zhao Na Liu Minghai Wang |
| author_sort | Xianjun Kong |
| collection | DOAJ |
| description | Ceramic matrix composites have high hardness, so their machining requires high grinding forces that cause severe wear of the grinding head. To investigate this problem, the present study investigated the cutting performance of conventional grinding (CG) and laser-assisted grinding (LAG) of SiC _f /SiC ceramic matrix composites using electroplated diamond grinding heads. Firstly, a three-dimensional transient heat transfer model based on a Gaussian heat source was developed to observe the surface and internal temperature field distributions of SiC _f /SiC ceramic matrix composites subjected to laser irradiation. Secondly, the effects of laser heating temperature on the workpiece surface on the grinding forces were analysed. It was found that the axial and feed grinding forces were more than 40% lower under LAG than CG due to the removal mechanism of the SiC matrix changing from brittle fracture to ductile fracture and the oxidation reactions occurred in the SiC _f /SiC ceramic matrix composites. Thirdly, the material removal mechanism was analysed by observing the morphology of machined surfaces, which showed that ductile removal from the SiC matrix occurs during LAG. Finally, it is also founded that the mean height of exposed abrasive grains from machined surface was reduced by 1.02 μ m, 12.52 μ m in LAG and CG respectively. The forms of wear caused by abrasive grains were studied. Under CG, the abrasive grains mainly exhibit cleavage fractures; while under LAG, micro-abrasion is the main wear form. |
| first_indexed | 2024-03-12T15:34:56Z |
| format | Article |
| id | doaj.art-fa1fdfdcb4a3421bb44215fe35bc33e5 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:34:56Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-fa1fdfdcb4a3421bb44215fe35bc33e52023-08-09T16:18:54ZengIOP PublishingMaterials Research Express2053-15912022-01-0191212560110.1088/2053-1591/aca6c5Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix compositesXianjun Kong0Shiwen Liu1https://orcid.org/0000-0002-7435-478XNing Hou2Ming Zhao3Na Liu4Minghai Wang5School of Mechatronics Engineering, Shenyang Aerospace University , Shenyang, People’s Republic of ChinaSchool of Mechatronics Engineering, Shenyang Aerospace University , Shenyang, People’s Republic of ChinaSchool of Mechatronics Engineering, Shenyang Aerospace University , Shenyang, People’s Republic of ChinaAir China Shenyang Liming Engine Co. Ltd, Shenyang, People’s Republic of ChinaAir China Shenyang Liming Engine Co. Ltd, Shenyang, People’s Republic of ChinaSchool of Mechatronics Engineering, Shenyang Aerospace University , Shenyang, People’s Republic of ChinaCeramic matrix composites have high hardness, so their machining requires high grinding forces that cause severe wear of the grinding head. To investigate this problem, the present study investigated the cutting performance of conventional grinding (CG) and laser-assisted grinding (LAG) of SiC _f /SiC ceramic matrix composites using electroplated diamond grinding heads. Firstly, a three-dimensional transient heat transfer model based on a Gaussian heat source was developed to observe the surface and internal temperature field distributions of SiC _f /SiC ceramic matrix composites subjected to laser irradiation. Secondly, the effects of laser heating temperature on the workpiece surface on the grinding forces were analysed. It was found that the axial and feed grinding forces were more than 40% lower under LAG than CG due to the removal mechanism of the SiC matrix changing from brittle fracture to ductile fracture and the oxidation reactions occurred in the SiC _f /SiC ceramic matrix composites. Thirdly, the material removal mechanism was analysed by observing the morphology of machined surfaces, which showed that ductile removal from the SiC matrix occurs during LAG. Finally, it is also founded that the mean height of exposed abrasive grains from machined surface was reduced by 1.02 μ m, 12.52 μ m in LAG and CG respectively. The forms of wear caused by abrasive grains were studied. Under CG, the abrasive grains mainly exhibit cleavage fractures; while under LAG, micro-abrasion is the main wear form.https://doi.org/10.1088/2053-1591/aca6c5laser assisted grindingSiCf/SiC compositesabrasive grains wearcutting performance |
| spellingShingle | Xianjun Kong Shiwen Liu Ning Hou Ming Zhao Na Liu Minghai Wang Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix composites Materials Research Express laser assisted grinding SiCf/SiC composites abrasive grains wear cutting performance |
| title | Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix composites |
| title_full | Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix composites |
| title_fullStr | Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix composites |
| title_full_unstemmed | Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix composites |
| title_short | Cutting performance and tool wear in laser-assisted grinding of SiCf/SiC ceramic matrix composites |
| title_sort | cutting performance and tool wear in laser assisted grinding of sicf sic ceramic matrix composites |
| topic | laser assisted grinding SiCf/SiC composites abrasive grains wear cutting performance |
| url | https://doi.org/10.1088/2053-1591/aca6c5 |
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