Method and apparatus for removing a predetermined amount of material from a bottom portion of a dovetail slot in gas turbine engine disk
AssigneeGeneral Electric Company
InventorsPaul Yin-Pu Pan, Gerald Roger Geverdt, Michael Jay Brunck
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Abstract
A system and method of removing a predetermined amount of material from a bottom portion of a dovetail slot in a gas turbine engine disk, including the steps of configuring a designated flow path through the dovetail slot and providing a flow of abrasive media through the flow path a designated number of cycles so that a substantially uniform amount of material is removed from the dovetail slot bottom portion. The method also includes the step of sealing a pressure surface of the dovetail slot to prevent the abrasive media from flowing thereagainst.
Claims23
A method of removing a predetermined amount of material from a bottom portion of a dovetail slot in a gas turbine engine disk, comprising the following steps:
- (a) configuring a designated flow path through said dovetail slot;
- and,
- (b) providing a flow of abrasive media through said flow path a designated number of cycles so that a substantially uniform amount of material is removed from said dovetail slot bottom portion.
An apparatus for removing a predetermined amount of material from a bottom surface of a dovetail slot in a gas turbine engine disk, wherein a longitudinal axis extends through said dovetail slot, comprising:
- (a) a fixture for providing a flow of abrasive media back and forth through a designated path at a predetermined pressure and flow rate;
- (b) a cradle for retaining said gas turbine engine disk in position so that said dovetail slot is in flow communication with said designated path;
- and,
- (c) a device for defining a designated flow path through said dovetail slot for said abrasive media;
- wherein said flow of abrasive media removes a substantially uniform amount of material from a bottom surface of said dovetail slot.
Dependencies are inferred from the claim text.