United Technologies Corporation

Turbine Overhaul Services Pte Ltd

Sor Tin Ng

Balaji Rao Garimella

Yap Wai Ping

Seng Wee Neo

Tian Siang Jason Kong

Eng Soon Ang

Chee Kin Woo

Methods for repairing gas turbine engine components are provided. In this regard, a representative method includes: applying a surface treatment to the component such that locations at an exterior surface of the component exhibiting inter-granular attack are protected from erosion during a cleaning process; and cleaning the component using hydrogen fluoride ion cleaning to clean the component.

Methods for repairing gas turbine engine components

A method of repairing a defect in a gas turbine engine component includes exposing the defect to a chemically reducing gas to clean the defect surface of undesired particles and oxidation. Before the cleaning, a protective coating is applied to the defect surface to resist inter-granular attack during the cleaning process.

Sacrificial coating for fluoride ion cleaning

A method of restoring dimensions to an article includes the steps of providing an article having a section requiring dimensional restoration, providing a preform having first and second layers made from different materials, and joining the preform to the article.

Method of restoring dimensions of an airfoil and preform for performing same

Growing community of inventors

Singapore, Singapore

Sor Tin Ng