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Ultrasonic longitudinal-torsional vibration-assisted cutting of Nomex® honeycomb-core composites

  • Daohui XiangEmail author
  • Bangfu Wu
  • Yunlong Yao
  • Zhongyun Liu
  • Haoren Feng
ORIGINAL ARTICLE
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Abstract

Nomex® honeycomb core sandwich structures have been widely used in the aviation industry because of their special structure and performance. Ultrasonic composite processing was introduced to solve the poor machinability of honeycomb core products when subjected to conventional processing methods. Based on the characteristics of ultrasonic longitudinal-torsional vibration, the motion equation of the machining tool was established. The tool was simplified as a straight blade and slide effect was applied to study the torsional characteristics of the tool. Tests were conducted to investigate the influence of machining parameters on cutting force and surface quality. The results showed that the cutting force required during ultrasonic longitudinal-torsional vibration-assisted cutting was smaller than for ultrasonic longitudinal vibration-assisted cutting, regardless of the spindle speed and the feed rate. Compared to the feed rate, spindle speed has a significant influence on the cutting force. The slide effect is effective when cutting off the fiber and can reduce the formation of burrs. Compared to ultrasonic longitudinal vibration-assisted cutting, shorter burrs, a lower burr rate, and fewer tear defects were observed after ultrasonic longitudinal-torsional vibration-assisted cutting. The surface quality of the honeycomb core composites was improved by increasing the spindle speed during ultrasonic longitudinal-torsional vibration-assisted cutting.

Keywords

Nomex® honeycomb Ultrasonic longitudinal vibration Ultrasonic longitudinal-torsional vibration Cutting force Surface quality 

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Notes

Funding information

This research was supported financially by the National Natural Science Foundation of China (No. U1604255), Henan Provincial Natural Science Foundation of China (No.182300410200), and Open Research Fund of State Key Laboratory of High Performance Complex Manufacturing, Central South University (No. Kfkt2017-09).

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  • Daohui Xiang
    • 1
    Email author
  • Bangfu Wu
    • 1
  • Yunlong Yao
    • 1
  • Zhongyun Liu
    • 1
  • Haoren Feng
    • 1
  1. 1.School of Mechanical and Power EngineeringHenan Polytechnic UniversityJiaozuoChina

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