Importance

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Abstract

The cavitation processing method, includes: immersing a nozzle that ejects a jet of a processing liquid of cavitation, a workpiece including a groove portion extending in a left-right direction and having edge portions at a front and a rear as viewed from the nozzle, and a guide member including a rectifying portion that flows the jet in a front-rear direction and a closing portion that closes a front end of the rectifying portion in the processing liquid; moving the closing portion to close to a front edge portion; ejecting the jet from the nozzle; and introducing the jet to the rectifying portion from the rear to cause the jet to collide with the closing portion for changing a flow direction of the jet to cause the jet to collide with a bottom portion of the groove portion.

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First Claim