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Formation mechanism and quality control technology for abrasive flow precision polishing vortex: large eddy simulation

  • Junye Li
  • Hengfu Zhang
  • Lili Wei
  • Xinming ZhangEmail author
  • Ying Xu
  • Chengyu Xu
ORIGINAL ARTICLE
  • 104 Downloads

Abstract

Abrasive flow polishing technology (AFPT) is a novel method of precision machining for improving the surface precision of the workpiece, where the micro-cutting process can be achieved for the finishing process of the inner surface of the workpiece through its contact with an abrasive. In order to investigate the vortex formation mechanism of the baffle servo valve nozzle of abrasive flow precision polishing (AFPP), the large eddy simulation (LES) method has been employed to analyze the flow path of abrasive flow and the effect of the vortex on the nozzle wall surface. To clarify the precise polishing action of abrasive flow, the impact of cutting behavior of abrasive particles is carried out with the vortex of the nozzle wall surface. The quality control method of abrasive flow precision polishing (AFPP) baffles servo valve nozzle is revealed from the formation mechanism of different cross-section vortices. It is concluded that the grinding speed of the abrasive flow has an important influence on the polishing quality of the abrasive flow. The higher the grinding speed, the better the precision of the abrasive flow. Finally, our results led us to conclude that the abrasive flow precision polishing technology (AFPPT) can effectively improve the surface quality of the nozzle orifice. Moreover, it can improve the abrasive flow grinding speed which can effectively improve the surface accuracy of the workpiece for the ideal surface quality.

Keywords

Abrasive flow precision polishing (AFPP) Large eddy simulation (LES) Grinding speed Vortex formation Quality control 

Notes

Acknowledgments

The authors would like to thank the National Natural Science Foundation of China no. NSFC 51206011, Jilin Province Science and Technology Development Program of Jilin Province no. 20170204064GX, Project of Education Department of Jilin Province no. JJKH20190541KJ, Changchun Science and Technology Program of Changchun City no. 18DY017.

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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.College of Mechanical and Electrical EngineeringChangchun University of Science and TechnologyChangchunChina

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