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Study on double-sided impedance matching of spherical focusing transducer in ultrasonic abrasive flow polishing system

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Abstract

The impedance matching of spherical focused ultrasonic transducer is one of the primary factors affecting the energy utilization efficiency in focused ultrasonic flow polishing system. To realize the efficient utilization of the vibration energy of the transducer, the front matching layer structure is design to achieve the impedance matching of the transducer and the abrasive flow liquid, thereby improving the transmittance of the transducer vibration energy in the liquid, and the back-matching layer structure is used to reflect the radiated vibration energy on the back of the transducer to reduce dissipation of radiated vibration energy on the back of the transducer. Based on the acoustic impedance matching theory and Kirchhoff’s theory, the influence of the front and back impedance matching structure of spherical focused ultrasonic transducer on the focal point sound pressure is studied theoretically, and experimentally, a novel impedance matching structure for spherical focused ultrasonic transducer is proposed. The experimental results showed that the focal point sound pressure was increased by 72.03% compared with that of the traditional structure.

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Funding

This work was supported by the National Natural Science Foundation of China [51905363], the Natural Science Foundation of Jiangsu Province [BK20190940], the and Master Research Startup Project of Suzhou University of Science and Technology.

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Authors and Affiliations

  1. School of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China

    Li Wei, Hua Li & Dong Wei

  2. Suzhou Key Laboratory of Precision and Efficient Processing Technology, Suzhou, 215009, China

    Hua Li

Authors
  1. Li Wei
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  2. Hua Li
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  3. Dong Wei
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Contributions

Li Wei: conceptualization, investigation, methodology, and writing original draft preparation. Hua Li: investigation and writing original draft preparation. Dong Wei: validation.

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Correspondence to Hua Li.

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The authors declare no competing interests.

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Wei, L., Li, H. & Wei, D. Study on double-sided impedance matching of spherical focusing transducer in ultrasonic abrasive flow polishing system. Int J Adv Manuf Technol 120, 3287–3297 (2022). https://doi.org/10.1007/s00170-022-08972-0

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  • DOI: https://doi.org/10.1007/s00170-022-08972-0

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