Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/105404
Title: | Simulation and experimental study of laser processing ndfeb microarray structure | Authors: | Zhao, Y Wang, S Yu, W Long, P Zhang, J Tian, W Gao, F Jin, Z Zheng, H Wang, C Guo, J |
Issue Date: | Apr-2023 | Source: | Micromachines, Apr. 2023, v. 14, no. 4, 808 | Abstract: | NdFeB materials are widely used in the manufacturing of micro-linear motor sliders due to their excellent permanent magnetic properties. However, there are many challenges in processing the slider with micro-structures on the surface, such as complicated steps and low efficiency. Laser processing is expected to solve these problems, but few studies have been reported. Therefore, simulation and experiment studies in this area are of great significance. In this study, a two-dimensional simulation model of laser-processed NdFeB material was established. Based on the overall effects of surface tension, recoil pressure, and gravity, the temperature field distribution and morphological characteristics with laser processing were analyzed. The flow evolution in the melt pool was discussed, and the mechanism of microstructure formation was revealed. In addition, the effect of laser scanning speed and average power on machining morphology was investigated. The results show that at an average power of 8 W and a scanning speed of 100 mm/s, the simulated ablation depth is 43 μm, which is consistent with the experimental results. During the machining process, the molten material accumulated on the inner wall and the outlet of the crater after sputtering and refluxing, forming a V-shaped pit. The ablation depth decreases with the increment of the scanning speed, while the depth and length of the melt pool, along with the height of the recast layer, increase with the average power. | Keywords: | Laser processing Melt pool flow evolution Microstructure formation mechanism NdFeB Simulation |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Micromachines | EISSN: | 2072-666X | DOI: | 10.3390/mi14040808 | Rights: | © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). The following publication Zhao Y, Wang S, Yu W, Long P, Zhang J, Tian W, Gao F, Jin Z, Zheng H, Wang C, et al. Simulation and Experimental Study of Laser Processing NdFeB Microarray Structure. Micromachines. 2023; 14(4):808 is available at https://doi.org/10.3390/mi14040808. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
micromachines-14-00808-v2.pdf | 19.66 MB | Adobe PDF | View/Open |
Page views
15
Citations as of Jul 7, 2024
Downloads
3
Citations as of Jul 7, 2024
SCOPUSTM
Citations
4
Citations as of Jul 4, 2024
WEB OF SCIENCETM
Citations
2
Citations as of Jul 4, 2024
![](/image/google_scholar.jpg)
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.