Ultrasonic assisted grinding of SiC<sub>f</sub>/SiC composites

KANG Renke; ZHAO Fan; BAO Yan; ZHU Xianglong; DONG Zhigang

doi:10.13394/j.cnki.jgszz.2019.4.0015

Volume 39 Issue 4

Aug. 2019

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Article Navigation > Diamond & Abrasives Engineering > 2019 > 39(4): 85-91

KANG Renke, ZHAO Fan, BAO Yan, ZHU Xianglong, DONG Zhigang. Ultrasonic assisted grinding of SiCf/SiC composites[J]. Diamond & Abrasives Engineering, 2019, 39(4): 85-91. doi: 10.13394/j.cnki.jgszz.2019.4.0015

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KANG Renke, ZHAO Fan, BAO Yan, ZHU Xianglong, DONG Zhigang. Ultrasonic assisted grinding of SiC_f/SiC composites[J]. Diamond & Abrasives Engineering, 2019, 39(4): 85-91. doi: 10.13394/j.cnki.jgszz.2019.4.0015

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Ultrasonic assisted grinding of SiC_f/SiC composites

doi: 10.13394/j.cnki.jgszz.2019.4.0015

Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, Liaoning, China

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Rev Recd Date: 2019-07-26

Available Online: 2022-04-06

Abstract

Abstract

SiC fiber reinforced SiC ceramic matrix composites (SiC_f/SiC) have problems such as poor machining quality and severe tool wear. To study these problems, SiC_f/SiC composites were processed by ultrasound-assisted grinding, and the grinding force, surface morphology and three-dimensional surface roughness were tested and explored. The removal mechanism of materials in ultrasound-assisted grinding was analyzed. The results show that ultrasonic assisted grinding can effectively reduce grinding force. The ultrasonic effect promotes the fracture of SiC fibers and the formation of shorter fibers to be removed, which reduces the fiber breaking and peeling and improves the surface quality, but the large amplitude of vibration is not conducive to the improvement of the surface quality.
- SiC_f/SiC composites,
- ultrasound-assisted grinding,
- material removal mechanism,
- surface topography

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Ultrasonic assisted grinding of SiC_f/SiC composites

doi: 10.13394/j.cnki.jgszz.2019.4.0015

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Ultrasonic assisted grinding of SiCf/SiC composites

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Ultrasonic assisted grinding of SiC_f/SiC composites