A novel inner surface enhancement method for holes utilizing ultrasonic cavitation

Research output: Contribution to journalArticleResearchpeer review

Authors

  • Fushi Bai
  • Liang Wang
  • Kunde Yang
  • Zhengyao He
  • Chang Liu
  • Jens Twiefel

External Research Organisations

  • Northwestern Polytechnical University
  • Nanjing University of Aeronautics and Astronautics
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Details

Original languageEnglish
Article number106453
JournalUltrasonics
Volume115
Early online date25 Apr 2021
Publication statusPublished - Aug 2021

Abstract

Holes in housings, shafts and flanges lead to stress concentrations when the components are working under high dynamic loads. Peening methods are commonly used to improve the stress concentration and extend the working life. These methods, however, are difficult to treat the inner surface of the holes in the components because these surfaces are fully shadowed and limit the access of the shot streams, water jets or laser beams. A new developed method using ultrasonic cavitation can be expected to solve these problems by using a sonotrode with a special shape. The working principle is that the fluid enters through a narrow gap between the sonotrode and the inner surface to create a cavitation. In this paper, a new sonotrode was designed and manufactured, then tested at a resonance frequency of 23.8 kHz. The sono-chemiluminescence experiments were carried out to detect the cavitation intensity on the inner surfaces. The stainless-steel tubes were treated, and their surface properties were evaluated as well. The results show that the cavitation intensity is strongest at the working distance of 1 mm. The hardness increased by about 12% without the significant change of surface roughness.

Keywords

    Holes, Inner surface, Surface properties, Ultrasonic cavitation peening

ASJC Scopus subject areas

Cite this

A novel inner surface enhancement method for holes utilizing ultrasonic cavitation. / Bai, Fushi; Wang, Liang; Yang, Kunde et al.
In: Ultrasonics, Vol. 115, 106453, 08.2021.

Research output: Contribution to journalArticleResearchpeer review

Bai, F., Wang, L., Yang, K., He, Z., Liu, C., & Twiefel, J. (2021). A novel inner surface enhancement method for holes utilizing ultrasonic cavitation. Ultrasonics, 115, Article 106453. Advance online publication. https://doi.org/10.1016/j.ultras.2021.106453
Bai F, Wang L, Yang K, He Z, Liu C, Twiefel J. A novel inner surface enhancement method for holes utilizing ultrasonic cavitation. Ultrasonics. 2021 Aug;115:106453. Epub 2021 Apr 25. doi: 10.1016/j.ultras.2021.106453
Bai, Fushi ; Wang, Liang ; Yang, Kunde et al. / A novel inner surface enhancement method for holes utilizing ultrasonic cavitation. In: Ultrasonics. 2021 ; Vol. 115.
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abstract = "Holes in housings, shafts and flanges lead to stress concentrations when the components are working under high dynamic loads. Peening methods are commonly used to improve the stress concentration and extend the working life. These methods, however, are difficult to treat the inner surface of the holes in the components because these surfaces are fully shadowed and limit the access of the shot streams, water jets or laser beams. A new developed method using ultrasonic cavitation can be expected to solve these problems by using a sonotrode with a special shape. The working principle is that the fluid enters through a narrow gap between the sonotrode and the inner surface to create a cavitation. In this paper, a new sonotrode was designed and manufactured, then tested at a resonance frequency of 23.8 kHz. The sono-chemiluminescence experiments were carried out to detect the cavitation intensity on the inner surfaces. The stainless-steel tubes were treated, and their surface properties were evaluated as well. The results show that the cavitation intensity is strongest at the working distance of 1 mm. The hardness increased by about 12% without the significant change of surface roughness.",
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AU - He, Zhengyao

AU - Liu, Chang

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