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US 7,144,302 B2Granted
Method for smoothing the surface of a gas turbine blade
AssigneeSiemens Aktiengesellschaft
InventorsAndrea Bolz, Martin Feldhege
Life of this patent
Estimating the term…
Abstract
A surface of the gas turbine blade is smoothed by way of a drag finish process. A first ring-shaped container is filled with a liquid abrasive medium. A second container which is arranged next to the first container is filled with a second liquid abrasive medium. A pivoting arm is arranged between and above the containers and can be pivoted along a pivoting direction. A drag device is arranged on the pivoting arm. The drag device leads a gas turbine blade on a carrier arm through the abrasive medium.
Claims14
A method of smoothing a surface of a gas turbine blade, comprising:
- dragging the gas turbine blade through an abrasive medium in a multi axial movement on a circular path around a first axis;
- and
- during dragging, rotating the gas turbine blade around a second axis that is perpendicular to a drag direction, the rotation of the gas turbine blade around the second axis being determined by the movement of the gas turbine blade around the first axis.
A method, comprising:
- dragging a work piece through an abrasive medium in a multi axial movement that includes
- moving the work piece in a drag direction on an arcuate path around a first axis, and
- simultaneously rotating the work piece around a second axis that is perpendicular to the drag direction, the rotation of the work piece around the second axis being determined by the movement of the work piece around the first axis.
Dependencies are inferred from the claim text.