Investigation on the surface formation mechanism in scratching of CFRP composites with different fiber orientations
Rotary ultrasonic machining (RUM) is an effective approach to process carbon fiber reinforced polymer (CFRP) composites. However, the surface formation mechanisms in RUM for different fiber orientations have not been comprehensively investigated. In this research, ultrasonic vibration-assisted scratching (UVAS) and conventional scratching (CS) tests with invariant cutting depth were conducted innovatively to expose the material removal mechanism. Based on the kinematics analysis, the characteristics of material removal process have been compared between UVAS and CS, and dynamic changes of actual cutting angle with the addition of ultrasonic vibration have been studied for the first time. The groove morphologies and scratching loads were analyzed for different fiber orientations and scratching parameters. The experimental results revealed that the fracture mode of fiber was principally decided by cutting angle. And the surface crack propagation can be significantly inhibited in UVAS due to the intermittent cutting behavior, increase of instantaneous velocity and the dynamic alteration of direction and magnitude of actual cutting angles. This research will help enable an in-depth understanding of the material removal mechanism of CFRP composites in RUM, and is beneficial for the optimum utilization of vibration assisted processing for advanced composites.
National Natural Science Foun-dation of China[U1737201]
|WOS Research Area|
Engineering ; Materials Science
Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary
|WOS Accession No|
|EI Accession Number|
Carbon fiber reinforced plastics ; Kinematics ; Ultrasonic effects ; Ultrasonic waves ; Vibration analysis
|ESI Classification Code|
Ultrasonic Waves:753.1 ; Polymer Products:817.1 ; Mechanics:931.1
|ESI Research Field|
Web of Science
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||Department of Mechanics and Aerospace Engineering|
1.Microelectronics Instruments and Equipment R&D Center,Institute of Microelectronics of the Chinese Academy of Sciences,Beijing,100029,China
2.School of Integrated Circuits,University of Chinese Academy of Sciences,Beijing,100049,China
3.School of Mechanical Engineering and Automation,Beihang University,Beijing,100191,China
4.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
Shi，Haiyan,Zhang，Zhe,Yuan，Songmei,et al. Investigation on the surface formation mechanism in scratching of CFRP composites with different fiber orientations[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2022,307.
Shi，Haiyan.,Zhang，Zhe.,Yuan，Songmei.,Li，Zhen.,Hou，Yu.,...&Zhang，Zichen.(2022).Investigation on the surface formation mechanism in scratching of CFRP composites with different fiber orientations.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,307.
Shi，Haiyan,et al."Investigation on the surface formation mechanism in scratching of CFRP composites with different fiber orientations".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 307(2022).
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