DEEP TRAILING EDGE REPAIR

摘要

A method for repairing a blade tip of a turbine blade based on welding below and above a designated depth recommended for repair of turbine blades. A damaged portion of the turbine blade is inspected to identify a standard cut portion and an angled cut portion. The standard cut portion is damaged above a standard cut line and the angled cut portion is damaged below the standard cut line. The damaged portion of the turbine blade is removed. The standard cut portion is removed using a first removal process and the angled cut portion is removed using a second removal process. The angled cut portion is built up with a first weld repair process. The angled cut portion is built up to the standard cut portion. The standard cut portion and the angled cut portion are built up with a second weld repair process.

主权项

1. A method for repairing a blade tip of a turbine blade, the method comprising:
inspecting a damaged portion of the turbine blade to identify a standard cut portion and an angled cut portion, wherein the standard cut portion is damaged above a standard cut line and the angled cut portion is damaged below the standard cut line; removing the damaged portion of the turbine blade, wherein the standard cut portion is removed using a first removal process and the angled cut portion is removed using a second removal process; building up the angled cut portion with a first weld repair process, wherein the angled cut portion is built up to the standard cut portion; and building up the standard cut portion and the angled cut portion with a second weld repair process.