Patent · US Active

Repair method

US8708682B2 · kind B2 · utility

0Cited by

9References

4Claims

0Family size

Assignee

MTU Aero Engines AG · DE

Inventors

Roland Huttner · Jesenwang, DE
Karl-Heinz Dusel · Unterschleißheim, DE
Erwin Bayer · Dachau, DE
Albin Platz · Mering, DE

Key dates

Filing date	Nov 5, 2009
Grant date	Apr 29, 2014
Priority date	—
Expiry date	Jul 25, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/25
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for repairing gas turbine components, in particular gas turbine blades, including at least the following steps: a) preparing a gas turbine component to be repaired; b) removing a damaged portion from the gas turbine component to be repaired, thereby forming a plane separation surface; c) placing the gas turbine component at least partly in a process chamber in such a way that the plane separation surface extends approximately horizontally within the process chamber; d) filling the process chamber with a metal powder that is bonding-compatible with the material of the gas turbine component to be repaired, namely up to the level of the separation surface; e) building up the removed portion on the separation surface by depositing metal powder in layers onto the separation surface and by fusing the metal powder, which has been deposited in layers onto the separation surface, to the separation surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.