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US 6,405,435 B1Granted
Process for producing or repairing cooling channels in monocrystalline components of gas turbines
AssigneeAlstom (Switzerland) Ltd
InventorsMaxim Konter, Wilfried Kurz
Life of this patent
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Abstract
Method for producing or repairing cooling channels (7a) of a gas turbine component (1), whereby the cooling channels (7a) are masked with a thermally stable filling material (3) on the cast gas turbine component (1), and another epitactic layer (6) is created above the ceramic material (3) with the help of a laser (4) and a powder (5). The thermally stable filling material (3) is removed by etching.
Claims8
A method for producing or repairing cooling channels in monocrystalline gas turbine components, comprising:
- a) casting a monocrystalline gas turbine component;
- b) applying a thermally stable filling material;
- c) creating a monocrystalline layer epitactically above the thermally stable filling material;
- and
- d) removing the thermally stable filling material.
2 more elements
Dependencies are inferred from the claim text.