Gas turbine components and method for machining gas turbine components
AssigneeMTU Aero Engines AG
InventorReinhold Meier
Life of this patent
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Abstract
The present technology relates to the problem that during diverse machining steps of application to the production or reconditioning of internally cooled gas turbine blades, an undesired effect may be had on sections of the gas turbine blades and proposes, as an improvement, to inject the cavity of the gas turbine blades before the machining steps with a plastic material which can be removed without trace, such as polystyrene, which can be subsequently removed again, in particular by heat.
Claims16
A method for machining gas turbine components to limit the area of the gas turbine component effected during the machining process comprising the following steps:
- preparing a gas turbine component having at least a first cavity;
- introducing a first plastic material into the first cavity;
- performing at least one first machining step on the gas turbine component;
- and
- thermally removing the plastic material from the first cavity,
- wherein the first plastic material is polystyrene and the first machining step is laser drilling, further wherein the laser drilling produces at least one laser hole in predetermined sections of a wall bordering the first cavity, the wall extending from the outer surface of the gas turbine component to the first cavity.
Dependencies are inferred from the claim text.