Precision hole-machining of SiC<sub>f</sub>/SiC composite using single-layer brazed diamond core drill dressed by pulsed laser

QIAN Ning; HE Jingyuan; SU Honghua; SUN Yuting; ANGGEI Lama; DING Wenfeng; XU Jiuhua

doi:10.13394/j.cnki.jgszz.2023.0248

Volume 45 Issue 2

Apr. 2025

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Article Navigation > Diamond & Abrasives Engineering > 2025 > 45(2): 143-152

QIAN Ning, HE Jingyuan, SU Honghua, SUN Yuting, ANGGEI Lama, DING Wenfeng, XU Jiuhua. Precision hole-machining of SiCf/SiC composite using single-layer brazed diamond core drill dressed by pulsed laser[J]. Diamond & Abrasives Engineering, 2025, 45(2): 143-152. doi: 10.13394/j.cnki.jgszz.2023.0248

Citation:

QIAN Ning, HE Jingyuan, SU Honghua, SUN Yuting, ANGGEI Lama, DING Wenfeng, XU Jiuhua. Precision hole-machining of SiC_f/SiC composite using single-layer brazed diamond core drill dressed by pulsed laser[J]. Diamond & Abrasives Engineering, 2025, 45(2): 143-152. doi: 10.13394/j.cnki.jgszz.2023.0248

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Precision hole-machining of SiC_f/SiC composite using single-layer brazed diamond core drill dressed by pulsed laser

doi: 10.13394/j.cnki.jgszz.2023.0248

1.
Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
Henan Academy of Sciences, Zhengzhou 450046, China
3.
Shenyang Liming Aero-Engine Co., Ltd., Aero-Engine Corporation of China, Shenyang 110043, China

More Information

Received Date: 2023-11-20
Accepted Date: 2024-02-26
Rev Recd Date: 2024-01-13

Abstract

Abstract

Objectives The single-layer brazed diamond core drill generally exhibits poor protrusion height uniformity of grains, making it difficult to control the hole diameter and the accuracy when machining SiC_f/SiC composites. Pulsed laser is used to dress the core drill to improve grain height uniformity, thereby enhancing hole accuracy on SiC_f/SiC composite. Methods Firstly, a pulsed laser dressing platform for the single-layer brazed diamond core drill is developed, and the influence of laser dressing parameters on grain height uniformity and morphology is revealed. Then, the aperture accuracy of the core drill before and after dressing is compared and analyzed to verify the benefits of laser dressing in improving hole accuracy. Finally, high-quality processing of SiC_f/SiC composite holes is achieved using the dressed drill. During the process, the total cutting depth of the pulsed laser is determined by dressing a standard rod to the target aperture size and then replacing it with the core drill for further dressing. The relative distance between the abrasive grains and the laser beam is adjusted, and the laser beam focus is aligned with the cutting point. The laser beam is reciprocally scanned along the tool axis to remove the protruding diamond grains and improve core drill height uniformity. Results The experiments show that pulsed laser dressing can effectively enhance the height uniformity of the side grains on the single-layer brazed diamond core drill. The discrete coefficient of grain height after dressing is reduced by 64%, from 0.11 to 0.04. Following pulsed laser dressing, the contour lines of side grains on the core drill become smoother, indicating improved height uniformity. The surface of diamond grains after pulsed laser ablation appears black due to a graphitization reaction, forming a thin black metamorphic layer that does not affect diamond grain performance. The laser-dressed single-layer brazed diamond core drill exhibits improved hole-making performance with a smaller variation range in hole diameter (4.00 - 4.02 mm) and higher hole-making accuracy. In contrast, the untrimmed core drill shows a larger variation range in hole diameter (4.06 - 3.98 mm) during the hole-making process. Furthermore, pulsed laser dressing has no negative impact on the grinding ability of the core drill. The average drilling force is 13.72 N before dressing and 12.43 N after dressing, with a difference of 1.29 N consistent with the change trend of the drilling force during the entry stage. The laser-dressed core drill maintains aperture accuracy better throughout its lifespan, with aperture deviation being only 0.02 mm, meeting the requirements on hole accuracy and showing a 75% reduction compared to the undressed condition. Conclusions The study applies pulsed laser dressing to enhance the protrusion height uniformity of grains on single-layer brazed diamond core drills. A laser dressing device is constructed, and a method is proposed. Using a graphite rod as the standard rod for determining the laser dressing depth reduces the diameter deviation. Pulsed laser dressing effectively improves grain height uniformity, with the discrete coefficient reduced by 64%. The dressed core drill demonstrates smaller aperture deviation (0.02 mm), meeting accuracy requirements without adversely affecting grinding ability or service life. This verifies the advantage of laser-dressed core drills in improving hole-making accuracy.
- single-layer brazed diamond core drill,
- SiC_f/SiC composite,
- pulsed laser dressing,
- hole accuracy,
- ultrasonic vibration assisted machining

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References(19)

References

[1]	LÜ X, LI L, SUN J, et al. Microstructure and tensile behavior of (BN/SiC)n coated SiC fibers and SiC/SiC minicomposites [J]. Journal of the European Ceramic Society,2023,43(5):1828-1842. doi: 10.1016/j.jeurceramsoc.2022.12.032
[2]	张海涛, 鲍岩, 杨峰, 等. 超声辅助螺旋磨削SiC_f/SiC陶瓷基复合材料 [J]. 金刚石与磨料磨具工程,2022,42(1):81-87. doi: 10.13394/j.cnki.jgszz.2021.0107 ZHANG Haitao, BAO Yan, YANG Feng, et al. Ultrasonic assisted helical grinding of SiC_f/SiC ceramic matrix composites [J]. Diamond & Abrasives Engineering,2022,42(1):81-87. doi: 10.13394/j.cnki.jgszz.2021.0107
[3]	张孟华, 庞梓玄, 贾云祥, 等. 纤维增强陶瓷基复合材料的加工研究进展与发展趋势 [J]. 航空材料学报,2021,41(5):14-27. doi: 10.11868/j.issn.1005-5053.2021.000033 ZHANG Menghua, PANG Zixuan, JIA Yunxiang, et al. Research progress and development trend of fiber-reinforced ceramic matrix composites [J]. Journal of Aeronautical Materials,2021,41(5):14-27. doi: 10.11868/j.issn.1005-5053.2021.000033
[4]	XIONG Y, WANG W, SHI Y, et al. Machining performance of in-situ TiB₂ particle reinforced Al-based metal matrix composites: A literature review [J]. Journal of Advanced Manufacturing Science and Technology,2021,1(2):2021003. doi: 10.51393/j.jamst.2021003
[5]	HUANG B, WANG W, JIANG R, et al. Experimental study on ultrasonic vibration–assisted drilling micro-hole of SiC_f/SiC ceramic matrix composites [J]. The International Journal of Advanced Manufacturing Technology,2022,120(11/12):8031-8044. doi: 10.1007/s00170-022-09186-0
[6]	LIU Y, LIU Z, WANG X, et al. Experimental study on tool wear in ultrasonic vibration–assisted milling of C/SiC composites [J]. The International Journal of Advanced Manufacturing Technology,2020,107(1/2):425-436. doi: 10.1007/s00170-020-05060-z
[7]	AN Q, CHEN J, MING W, et al. Machining of SiC ceramic matrix composites: A review [J]. Chinese Journal of Aeronautics,2021,34(4):540-567. doi: 10.1016/j.cja.2020.08.001
[8]	WANG X, DING W, ZHAO B, et al. A review on machining technology of aero-engine casings [J]. Journal of Advanced Manufacturing Science and Technology,2022,2(3):2022011. doi: 10.51393/j.jamst.2022011
[9]	陈少帅, 顾钒, 朱垠燃, 等. C/SiC 陶瓷基复合材料旋转超声制孔工艺研究 [J]. 航空制造技术,2022,65(18):63-70. doi: 10.16080/j.issn1671-833x.2022.18.063 CHEN Shaoshuai, GU Fan, ZHU Yinran, et al. Study on rotary ultrasonic drilling process of C/SIC ceramic matrix composite [J]. Aeronautical Manufacturing Technology,2022,65(18):63-70. doi: 10.16080/j.issn1671-833x.2022.18.063
[10]	HE J, QIAN N, SU H, et al. Wear behavior and machining quality of novel high-sharp brazed diamond abrasive core drills during drilling SiC_f/SiC composite micro-holes [J]. The International Journal of Advanced Manufacturing Technology,2023,128:3801-3816. doi: 10.1007/s00170-023-12146-x
[11]	DENG H, XU Z. Dressing methods of superabrasive grinding wheels: A review [J]. Journal of Manufacturing Processes,2019,45:46-69. doi: 10.1016/j.jmapro.2019.06.020
[12]	SU H, DAI J, DING W, et al. Experimental research on performance of monolayer brazed diamond wheel through a new precise dressing method—plate wheel dressing [J]. The International Journal of Advanced Manufacturing Technology,2016,87(9/10/11/12):3249-3259. doi: 10.1007/s00170-016-8646-9
[13]	WU Q, OUYANG Z, WANG Y, et al. Precision grinding of engineering ceramic based on the electrolytic dressing of a multi-layer brazed diamond wheel [J]. Diamond and Related Materials,2019,100:107552. doi: 10.1016/j.diamond.2019.107552
[14]	ZHOU W, CHEN G, GAO M, et al. Laser machining and compensation truing of small concave-arc bronze-bonded diamond grinding wheels [J]. Journal of Manufacturing Processes,2022,79:815-826. doi: 10.1016/j.jmapro.2022.05.016.
[15]	YANG Z, ZHANG Z, YANG R, et al. Study on the grain damage characteristics of brazed diamond grinding wheel using a laser in face grinding [J]. The International Journal of Advanced Manufacturing Technology,2016,87(1/2/3/4):853-858. doi: 10.1007/s00170-016-8454-2
[16]	ZHANG Z, ZHANG Q, XU J. The crack propagation and surface formation mechanism of single crystalline diamond by a nanosecond pulsed laser [J]. Journal of Applied Physics,2021,130(11):113105. doi: 10.1063/5.0057163
[17]	JACKSON M J, DAVIM J P. Machining with abrasives [M]. Boston, MA: Springer US, 2011.
[18]	DELAGE J, SAIZ E, AL NASIRI N. Fracture behaviour of SiC/SiC ceramic matrix composite at room temperature [J]. Journal of the European Ceramic Society,2022,42(7):3156-3167. doi: 10.1016/j.jeurceramsoc.2022.01.060
[19]	ZHANG Z, ZHANG Q L, WANG Q W, et al. Surface microstructuring of single crystalline diamond based on the accumulated energy homogenization in the nanosecond pulsed laser ablation [J]. Optics & Laser Technology,2021,138:106839. doi: 10.1016/j.optlastec.2020.106839