Investigation on the surface formation mechanism in scratching of CFRP composites with different fiber orientations

Shi，Haiyan1; Zhang，Zhe1,2; Yuan，Songmei3; Li，Zhen4; Hou，Yu1; Yue，Song1; Wang，Ran1; Li，Man1; Zhang，Zichen1

2022-09-01

10.1016/j.jmatprotec.2022.117694

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY   Impact Factor & Quartile

0924-0136

1873-4774

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.

Ultrasonic vibration-assisted scratching CFRP composites Surface formation mechanism Fiber orientation Kinematics analysis

SCI ; EI

English

Others

National Natural Science Foun-dation of China[U1737201]

Engineering ; Materials Science

Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary

WOS:000821790700002

ELSEVIER SCIENCE SA

20222612297550

Carbon fiber reinforced plastics ; Kinematics ; Ultrasonic effects ; Ultrasonic waves ; Vibration analysis

Ultrasonic Waves:753.1 ; Polymer Products:817.1 ; Mechanics:931.1

MATERIALS SCIENCE

2-s2.0-85132928434

Web of Science

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).