Processing parameter effect, formation mechanism and inhibition method of micro-hole exit defects in rotary ultrasonic pecking drilling of SiCf/SiC composites

High brittleness and anisotropy of ceramic matrix composites lead to great challenges for micro-hole machining. Micro-holes with large depth-to-diameter ratio (10:1) of SiCf/SiC composites were machined by rotary ultrasonic pecking drilling process. Based on the mechanical theory and structural char...

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Veröffentlicht in:	Composites. Part A, Applied science and manufacturing Applied science and manufacturing, 2024-10, Vol.185, p.108285, Article 108285
Hauptverfasser:	Li, Han, Zhang, Cheng, Zhang, Xunxun, Yin, Zhen, Wang, Tao, Yang, Lu, An, Qinglong, Chen, Ming
Format:	Artikel
Sprache:	eng
Schlagworte:	A. Ceramic-matrix composites (CMCs) anisotropy B. Defects brittleness ceramics D. Microstructural analysis E. Machining ultrasonics
Online-Zugang:	Volltext
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