Almen Strip Reliability

Author:  Peter G. Bailey
Source:  The Shot Peener magazine, Vol 04/Issue 4, Winter 1991
Doc ID:  1991104
Year of Publication:  1991
Abstract:  
GE Aircraft Engines conducted a series of tests to determine the reliability of Almen strip arc height measurements. The purpose was to provide basic data from which to develop the shot peen process beyond its currently perceived low technology level. Several factors were evaluated: Source of Almen strips, Initial (pre-peen) strip flatness, Strip hardness, Strip thickness (estimated), Strip mounting and shot entrapment, Effect of fluorescent tracer