Tohoku University Technology: Surface modification method using flow cavitation: T04-206_T05-248
Surface modification method to improve fatigue strength of metallic material by impact force generated during bubble collapse
Cavitation is a phenomenon where a liquid becomes an air bubble due to the decrease of saturated steam pressure of the liquid caused by pressure decrease occurred by the velocity increase of a liquid. In particular, group-row cavitation consisting of microbubbles produces a large impact force. Cavitation shotless peening which uses this phenomenon, has a smoother machined surface and higher fatigue strength than the method which uses steel balls (shot peening). Operation in air is also possible without using a water tank, by injecting a high speed water jet into a low speed water jet.
- Company：Tohoku Techno Arch Co., Ltd.
- Price：Other
