Non-synchronous ductile and brittle removal mechanisms for conventional and ultrasonic vibration-assisted scratching of ceramic matrix composites

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-01-07 DOI:10.1016/j.compositesa.2025.108718

Wenzhao An , Qilin Li , Xiaoxing Gao , Bochuan Chen , Yang Luo , Weiwei Xu , Liyu Wang , Songmei Yuan

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引用次数: 0

Abstract

Ceramic matrix composites (CMCs) are widely recognised as difficult-to-machine materials. The use of diamond abrasive tools combined with ultrasonic vibration offers unique benefits for precision machining. Understanding the differences in material removal mechanisms between ultrasonic vibration-assisted scratching (UAS) and conventional scratching (CS) is crucial for achieving efficient, accurate machining of high-value workpieces. Herein, variable-depth CS and UAS tests were performed, revealing for the first time two brittle removal mechanisms in CMCs: fibre-bending fracture from non-synchronous removal in CS and cyclic indentation-hammering-crack extension in UAS. Further, the non-impulse (CS) and impulse (UAS) force models are established for ductile and brittle removal, respectively. These models were successfully validated through experimental scratching-force data. Results suggest that material removal behavior is primarily influenced by the type of fiber bending fracture and crack extension tip shielding.

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.