Patent ID: 8597724
Filing Date: 2013-12-03
Classification: B23P,C23C,F01D,Y10T

Abstract:
1. A method for repairing a turbine component where the component original wall thickness remains above a component minimum wall thickness value after subsequent repair cycles comprising: providing a component exhibiting corrosion; performing a metallurgical examination of the component in an area where corrosion is present to determine a composition for the component; removing the corrosion from the component and forming a prepared area; measuring the component wall thickness at the prepared area; using a minimum blend length-to-depth ratio of 20:1 to determine a size for the prepared area; depositing a restorative material onto the prepared area if the prepared area wall thickness is greater than the component minimum wall thickness value and scrapping the component if not; inspecting the deposited material; and finishing the component by removing excess deposited material.