Method and apparatus for measuring intensity of peening of small surfaces
US4102176A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Apr 29, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0664
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The peening intensity test member is a factory assembled unit comprising a base structure having opposite faces and a test element secured to one of the faces of the base structure, the test element being removable from the base structure after peening for measurement of the amount of its deformation. The method of measuring the peening intensity comprises the steps of peening the exposed surface of the test element while secured to the base structure. Thereafter the test element is removed from the base structure and allowed to deform as a result of the compressive stress layer produced in the exposed surface of the test element by peening. The test element is then held on a surface of a measuring device so that a space is formed as a result of its deformation between the test element and the adjacent surface of the device. A fluid under a low pressure is metered to the space and the rate of leakage from the space is measured, such leakage rate being a function of the amount of deformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.