Details
| Original language | English |
|---|---|
| Article number | 107972 |
| Journal | Applied acoustics |
| Volume | 178 |
| Early online date | 27 Feb 2021 |
| Publication status | Published - Jul 2021 |
Abstract
In industrial applications, the highly stressed axial components are easily damaged by cyclic loads if their surfaces are not enhanced, since cracks and stress concentrations occur on the cylindrical components after turning. By the peening processes, the residual tensile stress can be removed and the surface hardness can be increased, thereby increasing the tool life. Compared to other peening processes, ultrasonic cavitation peening is a potential method to achieve surface processing of metal specimens and attracted much attention, since fewer polluting effluents are produced, with the exception of metal oxide powder that can be easily collected and recycled. Additionally, this method is cheap to perform and there are no thermal effects. In this project, we proposed a V-shaped traveling wave piezoelectric vibrating system for the ultrasonic cavitation peening to achieve an even performance on a cylindrical surface upon single treatment. The transfer matrix modeling and the cavitation field have already been investigated. In the investigations of the ultrasonic cavitation field, only the radial vibration in the inner surface of the ring sonotrode was considered and studied. However, the effects of the tangential vibration on the cavitation intensity and distribution as well as the mechanical properties of the workpiece surfaces are important to evaluate the performances of the proposed V-shaped transducer. In this paper, the numerical simulation of fluid–structure interaction (FSI) was investigated by first using the finite element method, considering liquid pressure, liquid flow velocity and vapor volume fraction. Then, the liquid flow velocity was measured using the color tracer method to validate the FSI results. Finally, the treatments for cylindrical workpieces using ultrasonic cavitation peening were conducted, and the performances of the treatments were evaluated by means of micro-hardness and surface roughness. The results show that the roughness of the cylindrical workpiece surfaces did not increase significantly, but micro hardness increased by as high as 54%.
Keywords
- Fluid–structure interaction, Hardness, Liquid velocity, Roughness, Ultrasonic cavitation
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Acoustics and Ultrasonics
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In: Applied acoustics, Vol. 178, 107972, 07.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Theoretical modeling and experimental investigation of a V-Shaped traveling wave piezoelectric transducer for ultrasonic cavitation Peening
T2 - Part B
AU - Bai, Fushi
AU - Wang, Liang
AU - Yang, Kunde
AU - He, Zhengyao
AU - Qi, Gang
AU - Twiefel, Jens
N1 - Funding Information: This research was supported by the National Natural Science Foundation of China under Grants 11974284 , 51905262 , U2037603 and the Fundamental Research Funds for the Central Universities under Grant ( 3102019HHZY03003 ; 3102019HHZY030017 ).
PY - 2021/7
Y1 - 2021/7
N2 - In industrial applications, the highly stressed axial components are easily damaged by cyclic loads if their surfaces are not enhanced, since cracks and stress concentrations occur on the cylindrical components after turning. By the peening processes, the residual tensile stress can be removed and the surface hardness can be increased, thereby increasing the tool life. Compared to other peening processes, ultrasonic cavitation peening is a potential method to achieve surface processing of metal specimens and attracted much attention, since fewer polluting effluents are produced, with the exception of metal oxide powder that can be easily collected and recycled. Additionally, this method is cheap to perform and there are no thermal effects. In this project, we proposed a V-shaped traveling wave piezoelectric vibrating system for the ultrasonic cavitation peening to achieve an even performance on a cylindrical surface upon single treatment. The transfer matrix modeling and the cavitation field have already been investigated. In the investigations of the ultrasonic cavitation field, only the radial vibration in the inner surface of the ring sonotrode was considered and studied. However, the effects of the tangential vibration on the cavitation intensity and distribution as well as the mechanical properties of the workpiece surfaces are important to evaluate the performances of the proposed V-shaped transducer. In this paper, the numerical simulation of fluid–structure interaction (FSI) was investigated by first using the finite element method, considering liquid pressure, liquid flow velocity and vapor volume fraction. Then, the liquid flow velocity was measured using the color tracer method to validate the FSI results. Finally, the treatments for cylindrical workpieces using ultrasonic cavitation peening were conducted, and the performances of the treatments were evaluated by means of micro-hardness and surface roughness. The results show that the roughness of the cylindrical workpiece surfaces did not increase significantly, but micro hardness increased by as high as 54%.
AB - In industrial applications, the highly stressed axial components are easily damaged by cyclic loads if their surfaces are not enhanced, since cracks and stress concentrations occur on the cylindrical components after turning. By the peening processes, the residual tensile stress can be removed and the surface hardness can be increased, thereby increasing the tool life. Compared to other peening processes, ultrasonic cavitation peening is a potential method to achieve surface processing of metal specimens and attracted much attention, since fewer polluting effluents are produced, with the exception of metal oxide powder that can be easily collected and recycled. Additionally, this method is cheap to perform and there are no thermal effects. In this project, we proposed a V-shaped traveling wave piezoelectric vibrating system for the ultrasonic cavitation peening to achieve an even performance on a cylindrical surface upon single treatment. The transfer matrix modeling and the cavitation field have already been investigated. In the investigations of the ultrasonic cavitation field, only the radial vibration in the inner surface of the ring sonotrode was considered and studied. However, the effects of the tangential vibration on the cavitation intensity and distribution as well as the mechanical properties of the workpiece surfaces are important to evaluate the performances of the proposed V-shaped transducer. In this paper, the numerical simulation of fluid–structure interaction (FSI) was investigated by first using the finite element method, considering liquid pressure, liquid flow velocity and vapor volume fraction. Then, the liquid flow velocity was measured using the color tracer method to validate the FSI results. Finally, the treatments for cylindrical workpieces using ultrasonic cavitation peening were conducted, and the performances of the treatments were evaluated by means of micro-hardness and surface roughness. The results show that the roughness of the cylindrical workpiece surfaces did not increase significantly, but micro hardness increased by as high as 54%.
KW - Fluid–structure interaction
KW - Hardness
KW - Liquid velocity
KW - Roughness
KW - Ultrasonic cavitation
UR - http://www.scopus.com/inward/record.url?scp=85101595390&partnerID=8YFLogxK
U2 - 10.1016/j.apacoust.2021.107972
DO - 10.1016/j.apacoust.2021.107972
M3 - Article
AN - SCOPUS:85101595390
VL - 178
JO - Applied acoustics
JF - Applied acoustics
SN - 0003-682X
M1 - 107972
ER -