Water jet peening device
US10376942B2 · kind B2 · utility
1Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2015 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Apr 10, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A water jet peening device includes a sealed vessel provided to cover a surface of a welded portion, and adapted to be in a sealed state where an internal pressure is higher than an outside, a jet nozzle adapted to jet high-pressure water to create a cavitation bubble toward the surface of the welded portion, inside the sealed vessel, and a pressure control hole adapted to be able to adjust the internal pressure of the sealed vessel. The water jet peening device can efficiently reform a tensile residual stress on the surface of the welded portion to a compressive residual stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.