| 摘要 |
A surface refining method for metal parts or the like, suitable for machining industries where surface refining (improving residual stress to compression, improving fatigue strength and work effect) is made by shot peening and for fields requiring parts cleaning, wherein a work (W) is set in a liquid-filled first container (1) and flow rates of liquid flowing into the first container from a nozzle (4) set away from the surface of the work and fluid flowing out from the first container are controlled to pressurize the first container, increase crash impact forces of cavitation bubbles and impart a peening effect on the surface of the work by the impact forces, thereby reinforcing and cleaning the surface of the work.
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