METHOD FOR REPAIRING AND RESTORING A FAN BLADE OF A GAS TURBINE ENGINE, A COMPRESSOR BLADE AND A VANE

摘要

PURPOSE: A repairing method of components of a turbine is provided to restore the damaged titanium alloy part of the gas turbine by eliminating the material from the damaged portion for generating the surface of the base and physically depositing titanium group material on the surface of the base. CONSTITUTION: A fan blade(20) of a gas turbine engine is composed of an inner blade root(22) for mounting the blade to a disk, and the blade root is separated from air foil(26) extended from a platform(24) to a tip(28) by the platform. The air foil is composed of a front corner(30) and a rear corner(32), and suction and pressure sides are extended between the front corner and the rear corner. A middle blade damper protection plate projection part(40) is extended from the pressure and suction sides, and placed between the platform and the tip to damp vibration of the blade. Titanium group materials for repairing the titanium alloy part are deposited physically and partially on the damaged portion and substituted for the first material.