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Published in: The International Journal of Advanced Manufacturing Technology 11-12/2022

19-11-2022 | ORIGINAL ARTICLE

Investigation on the machined surface quality and removal mechanism of SiCf/SiC composites in ultrasonic-assisted grinding

Authors: Zikang Zhang, Songmei Yuan, Qilin Li, Xiaoxing Gao, Xinlu Ouyang, Yang Luo

Published in: The International Journal of Advanced Manufacturing Technology | Issue 11-12/2022

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Abstract 

SiCf/SiC composites have been applied in numerous fields owing to their excellent out-of-plane properties, impact resistance, and delamination resistance. However, such composites are hard and brittle, and thus result in the formation of defects. In this study, we analyse the removal mechanism of different regions of the SiCf/SiC composites. Additionally, we investigate the effects of machining variables (spindle speed, feed rate and cutting depth) on the grinding force and surface roughness of SiCf/SiC composites in conventional grinding (CG) and ultrasonic-assisted grinding (UAG). The composites exhibit damage in the forms of matrix breakage, matrix cracks, fibre fracture, fibre debonding and interfacial debonding. The fibre removal modes in CG and UAG are different. Brittle fracture is the predominant material removal mechanism in CG and UAG. Results show that the grinding force and surface roughness decrease as the spindle speed increases, whereas they increase with the feed rate and cutting depth. Compared with CG, UAG is a more efficient and precise material processing method for reducing the grinding force and improving the machined surface quality. The findings of this study offer meaningful guidelines for improving the grinding process and machining efficiency of SiCf/SiC composites.

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Literature
Metadata
Title
Investigation on the machined surface quality and removal mechanism of SiCf/SiC composites in ultrasonic-assisted grinding
Authors
Zikang Zhang
Songmei Yuan
Qilin Li
Xiaoxing Gao
Xinlu Ouyang
Yang Luo
Publication date
19-11-2022
Publisher
Springer London
Published in
The International Journal of Advanced Manufacturing Technology / Issue 11-12/2022
Print ISSN: 0268-3768
Electronic ISSN: 1433-3015
DOI
https://doi.org/10.1007/s00170-022-10469-9

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