The majority of the Aerospace community does not follow the guidelines for part peening time set forth in AMS 2430. Perhaps AMS 2430 should be amended to show both methods and force the cognizant engineering organization to choose which method they want employed.
Aerospace Prime 1
Peening cycle time shall be the longer of time to reach Almen Strip saturation or 100% coverage. Undocumented practice by this prime but it’s the only way they will approve a peening process.
Aerospace Prime 2
Peening time shall be the longer of the time to achieve full surface coverage, or the time to achieve Almen Strip saturation.
Aerospace Prime 3
Peening time shall be the longer of time to reach Almen Strip saturation or 200% coverage.
Aerospace Prime 4
a. The minimum part peening time shall be the time required to achieve 100 percent coverage. Coverage shall be determined on the part being processed.
b. For drawings calling out more than 100 percent coverage the peening time shall be multiple of the time to achieve 100 percent coverage.
Last edited by Walter; 05/12/11 08:44 PM.
