Fundamentals and Applications of Cavitation Peening Comparing with Shot Peening and Laser Peening

Soyama, Hitoshi

doi:10.1007/978-981-15-0054-1_9

Cited by 13 publications

(17 citation statements)

References 31 publications

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“…To compare cavitation peening (CP) with the other peening methods, such as shot peening (SP), laser peening (LP), and water jet peening (WJP), Figure 20 shows the results of a plane bending fatigue test of stainless steel [54]. In Figure 20, the amplitude of bending stress was normalized by the fatigue strength of non-peened amplitude of 279 MPa.…”

Section: Comparison Between Cavitation Peening and Other Peening Methodsmentioning

confidence: 99%

“…At the rebound, i.e., expansion, a shockwave is generated. Figure 4 reveals the collapse of a bubble that was induced by a pulse laser using photo elasticity [54]; the behavior of…”

Section: What Is Cavitation?mentioning

confidence: 99%

“…At the rebound, i.e., expansion, a shockwave is generated. Figure 4 reveals the collapse of a bubble that was induced by a pulse laser using photo elasticity [54]; the behavior of a bubble induced by a pulse laser is similar to that of a cavitation bubble [52,55]. In Figure 4, the upper Impact at cavitation bubble collapse can be generated by two methods [2].…”

Section: What Is Cavitation?mentioning

confidence: 99%

“…This means that cavitation is created using a hydrodynamic phenomenon in a narrow flow passage such as a Venturi tube, orifice, and/or nozzle. As shown in Figure 2, cavitation is generated in the narrow region of a Venturi tube, and cavitation can be taken out from the tube by cutting the tube, as shown in Figure 5a [54]. The step type nozzle also creates cavitation inside the nozzle and near nozzle exit, as shown in Figure 5b [54].…”

Section: Hydraulic Cavitationmentioning

confidence: 99%

“…As shown in Figure 2, cavitation is generated in the narrow region of a Venturi tube, and cavitation can be taken out from the tube by cutting the tube, as shown in Figure 5a [54]. The step type nozzle also creates cavitation inside the nozzle and near nozzle exit, as shown in Figure 5b [54]. Figure 6 shows a schematic diagram of a cavitating jet, a cavitating jet observed with a flush lamp, and the jet observed with a normal light source.…”

Section: Hydraulic Cavitationmentioning

confidence: 99%

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Cavitation Peening: A Review

Soyama

2020

Metals

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The most popular surface modification technology used to enhance the mechanical properties of metallic materials is shot peening. Shot peening improves fatigue life and strength by introducing local plastic deformation pits. However, the pits increase surface roughness, which is a disadvantage for fatigue properties. Recently, cavitation peening, in which cavitation bubble collapse impacts are used, has been developed as an advanced surface modification technology. The advantage of cavitation peening is the lesser increase in surface roughness compared with shot peening, as no solid collisions occur in cavitation peening. In conventional cavitation peening, cavitation is generated by injecting a high-speed water jet into water. However, cavitation peening is different from water jet peening, in which water column impacts are used. In the present review, to avoid confusing cavitation peening and water jet peening, fundamentals and mechanisms of cavitation peening are described in comparison to water jet peening, and the effects and applications of cavitation peening are reviewed compared with the other peening methods.

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Section: Comparison Between Cavitation Peening and Other Peening Methodsmentioning

confidence: 99%

“…At the rebound, i.e., expansion, a shockwave is generated. Figure 4 reveals the collapse of a bubble that was induced by a pulse laser using photo elasticity [54]; the behavior of…”

Section: What Is Cavitation?mentioning

confidence: 99%

Section: What Is Cavitation?mentioning

confidence: 99%

Section: Hydraulic Cavitationmentioning

confidence: 99%

Section: Hydraulic Cavitationmentioning

confidence: 99%

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Cavitation Peening: A Review

Soyama

2020

Metals

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Processing characteristics and loading principle on micro blanking of cavitation jet

Wang,

Zhu,

et al. 2024

Int J Adv Manuf Technol

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This study proposes a new technology of exible micro blanking with cavitation jet to improve the quality of micro blanking parts. We simulated the cavitation jet, obtained the change of its meteorological volume fraction, and veri ed the high-pressure phenomenon caused by cavitation collapse, which is used to achieve processing. Then, we investigated the blanking form ability of cavitation jet on T2 copper foils to cope with different shapes. The impact of the incident pressure of cavitation jet and targeted distance on the micro blanking form ability is studied, and the experimental results are correlated with the simulation. Also, we observed a linear relation between the critical blanking thickness and blanking size of T2 copper foil. Through the characterization of the experimental results, it is found that the internal stress of the regular polygon-shaped blanking parts is unevenly distributed along the blanking contour during processing, which is easy to cause the material to tear and produce defects like aws and incomplete forming. On the other hand, the internal stresses of the circular blanking parts are evenly distributed along the blanking contour, which shows that the blanking forming has good quality. This processing technology is different from traditional plastic micro blanking processing, the cut edge morphology of micro blanking parts under cavitation jet technology is mainly bending and pulling, without obvious shearing marks. Under moderate incident pressure, the cut edge of the blanking part has few pulling marks and small burrs, and has good and uniform blanking quality.

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