Results 131 to 140 of about 266 (165)
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Capability evaluation of ultrasonic cavitation peening at different standoff distances
Ultrasonics, 2018Ultrasonic cavitation peening is a novel surface treatment technology which utilizes the effect of cavitation bubble collapses to improve the properties of metal surfaces. In order to obtain high impact during ultrasonic cavitation peening, a small standoff distance between a sound radiator and a rigid reflector (the surface of treated specimen) is ...
Yangyang Long +2 more
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Investigation of the Process Capability of Water Cavitation Peening and Shot Peening Processing
Applied Mechanics and Materials, 2011Water cavitation peening (WCP) with aeration is a recent potential method in the surface enhancement techniques. In this method, a ventilation nozzle is adopted to improve the process capability of WCP by increasing the impact pressure, which is induced by the bubble collapse on the surface of components in the similar way as conventional shot peening ...
Bing Han, Chao Deng, Dong Ying Ju
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Comparable Study on Water Cavitation Peening and Traditional Shot Peening of Almen Strips
Advanced Materials Research, 2010Comparing with conventional mechanical shot peening (SP) technique, water cavitation peening (WCP) experiments of Almen strips were carried out on a self-manufactured equipment. The results show that WCP demonstrates a wide range of standoff distance (SD) that from the nozzle to the surface of the object.
Xiu Juan Zhao +5 more
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Fundamentals and Applications of Cavitation Peening Comparing with Shot Peening and Laser Peening
2019Although impact induced by cavitation bubble collapse causes severe damage in hydraulic machineries, the impact can be utilized for the mechanical surface treatment of metallic materials in the same way as shot peening. The peening using cavitation impact is named as “cavitation peening”. In the paper, the concepts and key factors on cavitation peening
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Ultrasonic Cavitation Peening of Stainless Steel and Nickel Alloy
Journal of Manufacturing Science and Engineering, 2013Ultrasonic cavitation peening is a peening process utilizing the high pressure induced by ultrasonic cavitation in liquids (typically water). In this paper, ultrasonic cavitation peening on stainless steel and nickel alloy has been studied. The workpiece surface microhardness, the microhardness variation at different depths, the workpiece surface ...
Yibo Gao +5 more
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Enhancing Cavitation Intensity in Co-Flow Water Cavitation Peening With Organ Pipe Nozzles
Journal of Manufacturing Science and Engineering, 2021AbstractCo-flow water cavitating jets induce compressive residual stress through cavitation impacts produced by the collapse of the cavitation cloud. Co-flow water cavitation peening causes minimal surface alteration when compared with conventional processes such as shot peening, which is a major advantage.
A. N. Vidvans +2 more
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Particle Swarm Optimization approach for waterjet cavitation peening
Measurement, 2019Abstract An attempt has been made to solve water jet machining associated with cavitation peening problem through Particle Swarm Optimization (PSO) technique. The swarm initialization is started with Water pressure, stand off-distance and traverse speed. The fitness estimation of PSO is Residual stress, Hardness and Surface profile roughness.
T.P. Latchoumi +3 more
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Improvement on the process capability of water cavitation peening by aeration
Surface and Coatings Technology, 2006As a new surface enhancement technique, water cavitation peening (WCP) is used to introduce compressive residual stress in the superficial layer of metallic materials, thereby increasing the fatigue life of components. According to this method, a submerged high-speed water jet with cavitation is used, and the induced bubble collapse on the surface of ...
M. Qin, D.Y. Ju, R. Oba
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Electrochmical Characteristics by Water Cavitation Peening of Cu Alloy
Journal of the Korean Society of Marine Engineering, 2012Copper alloys are widely used for casting materials including ship`s propellers and pump impellers as they provide high corrosion resistance. In addition, the demand for these alloys is increasing with rapid growth of offshore structures and exploitation of various substitute energy sources.
Seong-Jong Kim, Min-Su Han, Min-Sung Kim
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Journal of Materials Processing Technology, 2019
Abstract In order to make a clear comparison between the various peening methods used to improve the fatigue strength of stainless steel 316L, the fatigue strength of specimens treated by cavitation peening, water jet peening, laser peening and shot peening were examined using a plate bending fatigue test.
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Abstract In order to make a clear comparison between the various peening methods used to improve the fatigue strength of stainless steel 316L, the fatigue strength of specimens treated by cavitation peening, water jet peening, laser peening and shot peening were examined using a plate bending fatigue test.
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