Article
Automation & Control Systems
Linzheng Ye, Xijing Zhu, Yan He
Summary: This paper investigates the micro-cutting mechanism of micro-jet, taking into account the size effect of materials. A micro-cutting force model of micro-jet is established and solved based on the spherical indentation test theory and the strain gradient plasticity theory. The results show that considering the size effect, the micro-cutting force and impact pressure of micro-jet are larger, and the micro-cutting force of single micro-jet is within 2.35 N. The micro-cutting force exponentially increases with the increase of pit radius, while it only slightly increases with the increase of pit depth. The impact pressure of micro-jet is influenced by the size effect and ranges from 1616-2922 MPa or 1615-1980 MPa, depending on whether the size effect is considered or not. The size effect has a significant impact on the increase in micro-cutting force and is more pronounced when the pit size is smaller.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Electrochemistry
Minghuan Wang, Ming Lv, Ruiyong Zhang, Wenjun Tong, Xuefeng Xu
Summary: Ultrasonic assisted electrochemical micromachining (UAEMM) is a promising method for micromachining applications. This paper investigates the specific effect of cavitation micro-jet generated in a narrow gap in UAEMM on material corrosion. The results show that the material removal and surface precision improved significantly, and surface hardness was also increased in UAEMM experiments.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Engineering, Chemical
Chi Peng, Chaoyue Zhang, Qinfeng Li, Shilong Zhang, Yu Su, Hairui Lin, Jianhong Fu
Summary: The experiments showed that ultrasonic cavitation erosion of reservoir rocks in a solution containing SiO2 micro-abrasives can accelerate the erosion speed and extent, attributed to the synergistic effect of cavitation and micro-abrasives. During the erosion process, multiple micro-fractures and pores are generated on the rock surface, increasing the permeable channels for fluid flow.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Acoustics
Jianxin Zheng, Yonglei Guo, Lixin Zhu, Hanlin Deng, Yingju Shang
Summary: The ultrasonic cavitation effect has been found to improve machining quality through simulation and experimental studies. Particularly, the cavitation effect generated in the two-dimensional ultrasonic rolling process has a positive impact on processing quality.
Article
Engineering, Electrical & Electronic
Tianjiao Song, Xijing Zhu, Linzheng Ye, Jing Zhao
Summary: Through experimental research, it was found that the natural frequency and resonance amplitude of materials are influenced by ultrasonic cavitation, abrasive content, and ultrasonic amplitude. The research results are of great significance for understanding the resonance phenomenon of materials under different working conditions and controlling material properties.
Article
Mechanics
Min Xiang, Zeyang Xie, Xiaoyu Zhao, Weihua Zhang
Summary: An experimental system coupling the supercavity and the tail jet was established to study the cavity instability mechanism. The shapes and rates of the model and jet were changed to investigate different flow patterns. The results showed that the supercavity could lose instability due to the re-entrained liquid jet produced by the tail jet. The rearward facing step structure successfully suppressed the re-entrained jet, but cavity/body interaction induced another type of instability. New cavity instability was observed at ignition with hot jet generated by the solid rocket motor. The cavity instability mechanisms were summarized and compared, with spectral analysis showing larger Strouhal number for pressure pulse induced instability.
Article
Automation & Control Systems
Guangjun Chen, Jinkai Xu, Jingdong Wang, Ying Li, Jiaqi Wang, Huadong Yu
Summary: This study investigated the micro-hole machining of difficult-to-process materials using ultrasonic-assisted drilling technology. It was found that this technology can improve machining performance, reduce thrust force, and enhance surface quality.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Physics, Applied
Hiroshi Matsuura, Hiromitsu Furukawa, Atsushi Kondo, Tamio Tanikawa, Hideki Hashimoto
Summary: This study analyzed the mechanisms of jet atomization based on a frequency analysis of atomization sounds in the audible range and revealed the resonance between the hydrophilic diaphragm and the surface wave in symmetrical jet atomization. The study also showed that acoustic analysis of atomization sounds can be utilized for advanced atomization control, particularly in providing uniform dispersions of droplets containing various substances.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Hong -Xiang Zheng, Yun Luo, Jing-Yu Zang, Wen -Chun Jiang
Summary: This study compares the effects of cavitation jet peening treatment (CJP) and ultrasonic impact treatment (UIT) on the fatigue properties of cruciform welded joints. The results show that CJP can increase the fatigue life of the welded joints, while UIT can reduce it. The influence of residual stress on fatigue life is more significant.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Automation & Control Systems
Yan Wang, Lingfeng Fan, Jian Shi, Yinghuai Dong, Zhiqiang Fu
Summary: Compared with traditional EDM, ultrasonic vibration-assisted electric discharge machining (UEDM) technology achieves superior machining results for difficult-to-machine materials. The collapse of ultrasonic cavitation bubbles has a significant impact on UEDM processing. This study analyzes the influences of shock wave, high temperature, and pressure environment generated by cavitation bubble collapse on the workpiece surface. Experimental and simulation results show that the surface quality of UEDM workpieces with ultrasonic cavitation effects are better than ordinary EDM, with a reduction in surface roughness of 9.3%-27.9%.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Engineering, Chemical
Zhe-Yong Shen, Hai-Ping Tsui
Summary: This paper discusses the use of an ultrasonic vibration-integrated array electrode for micro-hole drilling in 301 stainless steel. Experimental results show that with the optimal parameter combination, such drilling can achieve a minimum average diagonal length and a smaller amount of variation in diagonal length, improving the inlet and outlet taper angle of micro-holes.
Article
Engineering, Mechanical
Linzheng Ye, Shida Chuai, Xijing Zhu, Dong Wang
Summary: This paper explores the intensity of ultrasonic cavitation using a fluorescence analysis method and quantitatively characterizes cavitation intensity based on experimental results. The results show that fluorescence intensity and peak area increase rapidly after ultrasonic cavitation treatment, and then gradually increase with the increase of ultrasonic power and irradiation time. Low frequency cavitation has higher intensity overall.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Engineering, Marine
Xiao Zhong, Jingming Dong, Mushan Liu, Rongxuan Meng, Shuai Li, Xinxiang Pan
Summary: This paper proposes a novel ultrasonic-enhanced submerged cavitation jet method for cleaning ship fouling. Through experimental results, the feasibility of this method is verified, indicating that the mass loss of samples increases greatly when the submerged cavitation jet is combined with ultrasonic.
Article
Chemistry, Physical
Fengjun Chen, Jianhua Du, Shuai Huang
Summary: A novel superhydrophobic fabrication method based on ultrasonic cavitation was proposed in this study, which utilized cavitation bubbles to create a microstructure with high roughness and anchor SiO2 nanoparticles on the surface to form a micro-nano composite structure. The superhydrophobic surfaces exhibited excellent anti-corrosive durability and repairable properties.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Mechanical
Jiangqin Ge, Yile Ren, Chen Li, Zhian Li, Sunting Yan, Ping Tang, Xinsheng Xu, Qiang Wang
Summary: To improve the efficiency of glass-based micro-channel polishing, an ultrasonic coupled abrasive jet polishing (UC-AJP) approach was proposed and a fluid mechanic model was established to reveal the ultrasonic enhancement law and optimal design parameters. The results showed that ultrasonic vibration significantly improved turbulent kinetic energy and impact erosion, leading to better jet stability and polishing efficiency. High-speed photography and polishing experiments confirmed that UC-AJP produced smoother surfaces and higher polishing efficiency compared to abrasive jet polishing. The optimal amplitude range in the UC-AJP process maximized the micro-channel polishing efficiency, attributed to the synergistic effect of pulse and cavitation in the pulsed abrasive jet formation.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)