Method of producing a turbine blade
AssigneeSiemens Aktiengesellschaft
InventorsWinfried Esser, Michael Haendler, Peter Tiemann
Life of this patent
Estimating the term…
Abstract
In a method of producing a turbine blade in hollow section, an especially low defect or scrap rate is to be ensured. To this end, a first core element is connected via a number of approximately cylindrical spacers to a further core element and/or to a casting mold, the cavities left in the casting mold by the core elements being filled by blade material, and the openings remaining in the turbine blade after the removal of the core elements and the spacers and produced by the spacers being closed by stopper elements.
Claims6
A method of producing a turbine blade having a hollow section, comprising the steps of:
- a) providing a casting mold having a vacancy;
- b) providing at least one core element;
- c) inserting said at least one core element into said vacancy;
- d) providing at least one spacer;
- e) positioning said at least one core elements within said vacancy via said at least one spacer, thereby forming at least one cavity within said vacancy;
- f) providing a predetermined quantity of blade material within said at least one cavity;
- g) removing said first core element and said at least one spacer from said blade material, thereby forming at least one opening within said blade material;
- h) providing at least one stopper element adapted close said at least one opening;
- and
- i) closing said at least one opening with said at least one stopper.
Dependencies are inferred from the claim text.