The Curve Solver Program

Author:  Jack Champaigne
Source:  The Shot Peener magazine, Volume 21 / Issue 2, Spring 2007
Doc ID:  2007013
Year of Publication:  2007
Abstract:  
Graphs Almen saturation curve and provides value of intensity The introduction of the 10% rule in 1984 by the SAE was the first mathematical approach to determine intensity from the saturation curve. As I discussed in my article in the winter Shot Peener, the 10% rule helped undo the confusion created by earlier SAE documentation regarding saturation, coverage and intensity. However, plotting a saturation curve to meet the 10% rule is laborious and prone to inaccuracies. Thankfully, computer-based curve-fitting procedures are now almost universally available. They offer several advantages over manual procedures including speed and objectivity.