A METHOD OF ESTABLISHING A BOUNDARY FOR A MATERIAL IMPROVEMENT PROCESS ON AN AIRFOIL, AND AIRFOIL FOR A GAS TURBINE ENGINE.

摘要

A method of establishing a boundary for a material improvement process on a workpiece is disclosed. The method may include identifying a maximum allowable damage depth on the workpiece; identifying a maximum constant thickness line on the workpiece at an extent of the maximum allowable damage depth; identifying a peak vibratory stress gradient on the workpiece; identifying a peak combined engine stress on the workpiece; and specifying the boundary for the material improvement process on the workpiece relative to the maximum constant thickness line, peak vibratory stress gradient, and peak combined engine stress.